Final Report
Anaerobic Digestate and CompostTrials in Commercial Forestry
Innovative Uses for Quality Composts and Outputs from Anaerobic Digestion within the Landscape and Regeneration Sectors in Scotland
Project code: OBF013-004 ISBN: [Add reference] Research date: December 2010 – March 2011 Date: March 2011
ZERO WASTE SCOTLAND helps individuals, businesses and local authorities to reduce waste and recycle more, making better use of resources and helping to tackle climate change.
Written by: Jarvis.D., Moffat, A,J.
Front cover photography: Newton Nursery Site with inset photographs of dry and wet digestate, compost and liquor (clockwise from top left)
Zero Waste Scotland/WRAP and David Jarvis Associates Limited believe the content of this report to be correct as at the date of writing. However, factors such as prices, levels of recycled content and regulatory requirements are subject to change and users of the report should check with their suppliers to confirm the current situation. In addition, care should be taken in using any of the cost information provided as it is based upon numerous project-specific assumptions (such as scale, location, tender context, etc.). The report does not claim to be exhaustive, nor does it claim to cover all relevant products and specifications available on the market. While steps have been taken to ensure accuracy, Zero Waste Scotland/WRAP cannot accept responsibility or be held liable to any person for any loss or damage arising out of or in connection with this information being inaccurate, incomplete or misleading. It is the responsibility of the potential user of a material or product to consult with the supplier or manufacturer and ascertain whether a particular product will satisfy their specific requirements. The listing or featuring of a particular product or company does not constitute an endorsement by Zero Waste Scotland/WRAP and Zero Waste Scotland/WRAP cannot guarantee the performance of individual products or materials. This material is copyrighted. It may be reproduced free of charge subject to the material being accurate and not used in a misleading context. The source of the material must be identified and the copyright status acknowledged. This material must not be used to endorse or used to suggest Zero Waste Scotland/WRAP’s endorsement of a commercial product or service. For more detail, please refer to Zero Waste Scotland/WRAP’s Terms & Conditions on its web site: www.wrap.org.uk
Anaerobic Digestate and Compost Trials in Commercial Forestry 1
Executive summary This report describes the establishment of a comprehensive field trial of two types of anaerobic digestate (AD),
with and without compost, on the growth of trees. This research was funded by Zero Waste Scotland/WRAP as
Project OBF 013-004. It was undertaken by David Jarvis Associates Limited (DJA) and Forest Research (FR), the
research agency of the Forestry Commission.
Anaerobic digestion (AD) involves the break down of biodegradable material in the absence of oxygen by micro-
organisms called methanogens. It is already widely used to treat wastewater in the UK and is increasingly used to
treat other organic wastes, including domestic and commercial food waste, manures and biofuel crops. Digestate
can come in three forms; fibrous, liquor or a sludge-based combination of the two fractions. It is an organic
material, high in nutrients such as nitrogen and phosphorus, making it potentially valuable as a substitute for
artificial fertilisers.
The experiment was designed to examine whether application of two AD digestate products to tree planting pits
at the time of tree planting would enhance soil conditions and tree growth, on its own or in conjunction with a
PAS100 compost product. In addition, we wished to compare responses against the mulching power of PAS100
compost as a separate treatment.
The nature of the site and its location determined in part the amounts of AD and compost that could be applied
experimentally. Newton nursery lies in a designated Nitrate Vulnerable Zone, restricting the application of total
nitrogen to no more than 250 kg N ha-1. Application rates chosen to maximise the application of AD whilst
allowing the study of interaction between AD and compost are given in Table 1, below.
1) Control – no AD or compost application
2) 50 mm PAS100 added to soil surface as weed suppressant
3) 50 mm PAS100 incorporated
4) 50 mm PAS 100 drip fed with 50 kg N in leachate to give 250 kg N ha-1
5) 12 mm PAS 100 made up to equivalent of 250 kg N ha-1 with AD digestate
6) 12 mm PAS 100 made up to equivalent of 250 kg N ha-1 with AD leachate
7) 12 mm PAS 100 made up by 50 kg N from leachate + digestate to 250 kg N ha-1
Table 1. Rates of application of AD and compost materials
AD materials used for the experiment at Newton nursery were sourced from the Scottish Water Horizons
Deerdykes facility near Cumbernauld. This is a ‘brand new’ facility, opened in Spring 2010, with the capability to
convert 30,000 tonnes of solid and liquid food waste into around 8,000 megawatts of power each year. The
experiment used some of the first AD materials produced by the plant. PAS100 compliant compost was also
sourced from Scottish Water Horizons.
Generally
Initial results are provided describing a baseline chemical composition of the:
Anaerobic Digestate and Compost Trials in Commercial Forestry 2
- unamended top soil
- unamended anaerobic digestate cake
- unamended PAS100 green compost
- unamended liquor digestate; and,
- treatments 1-7.
For each treatment, duplicate samples (occasionally single samples) were taken of the ‘pure’ and ‘planted’ media.
The wide range of analyses selected can provide an indication of the suitability of the soil, compost and anaerobic
digestate (AD) products for tree establishment and may be used to assess risks posed to the environment; for
example, by potentially toxic elements, organic contaminants or high nutrient loadings. Results from future
investigations may be compared with these baseline figures to assess the impact of each treatment on tree
growth.
The analyses conducted on the soil, compost and AD (cake and liquor), and treatment samples were:
- pH
- Conductivity
- Nitrogen (as total, ammonium-N and nitrate-N)
- Carbon (as total, total inorganic and total organic)
- Organic matter
- Nutrients (P, K, Ca, Mg)
- Elemental composition (covering potential toxic as well as essential nutrients: Na, Al, Fe, Mn, S, Ba, Cd,
Co, Cr, Cu, Ni, Pb, Sr, Zn, As, B, Hg, Zr, Mo, Sb, Se, Sn)
- Visible contaminants
- Total and speciated polycyclic aromatic hydrocarbons (PAH) (specifically: USEPA16 PAH)
- Total Petroleum Hydrocarbons (TPH) (as well as the sub-divisions: C10-C40 and C35-C40)
All analysis were conducted by Forest Research’s chemical laboratories in Farnham, Surrey, except the Total and
Speciated PAH and the TPH analyses, which were conducted by SAL Ltd, in Manchester. Analyses were
conducted in January 2011.
Preliminary results
Mean average results of the chemical analyses of the soil, compost, AD product and treatment samples are
represented in Tables 1 and 2. For the most part, results are typical and as expected for each of the media and
sample treatments, and in accordance with the experimental design. A difference between mean averages for
the ‘pure’ and ‘planted’ samples was observed within treatments for many of the chemical parameters analysed
and these are presented below. An overview commentary on the results is presented below; exceptional results
are discussed.
pH analysis demonstrated that the planting media and sample treatments were mostly acidic (but ranged 5.3-7.9)
and favourable to tree establishment. Total nitrogen ranged 2-16% for the compost and AD products. Total
carbon ranged 21-61% and increased in the order PAS compost < AD cake < AD digestate. In each case, the
carbon was almost entirely organic carbon; total inorganic carbon contents were <1%. The total nitrogen and
Anaerobic Digestate and Compost Trials in Commercial Forestry 3
carbon values equate to C:N ratios of 10-15 for the unamended soil, compost and AD cake, resulting in C:N ratios
of 11-14 in the treatment plots.
The concentrations of potentially toxic elements demonstrated that there were no unacceptable risks posed by
the soil, compost or AD products for the elements cadmium, chromium, copper, nickel, zinc, arsenic, boron,
mercury or selenium, as recorded concentrations were below the UK’s soil guideline values for ‘residential’
locations (comparison is made to the SGVs for ‘residential’ locations as these are the most conservative of the
SGVs available). Guideline values are not currently available upon which to assess the risk posed by the other
potentially toxic elements.
Analysis of the organic contaminant loadings of the compost and AD products demonstrated that the total
petroleum hydrocarbon (TPH) concentrations were small and posed no significant risk, as they are within LQM’s
residential generic acceptance criteria of <12,000 mg/kg. Similarly, no unacceptable risks are posed by total PAH
concentrations in the compost or AD products, with all values below the 40 mg/kg intervention level presented by
the Dutch Ministry of Housing, Spatial Planning and Environment, which is often used as a guideline in the
absence of a UK standard. The highest total PAH concentration observed was 5 mg/kg (mean 3.4 mg/kg) in the
PAS compost.
The electrical conductivity (EC) of the PAS compost, the AD liquor and cake was high (10-36,000 μS/cm). The
resultant EC was subsequently high in the ‘pure’ samples taken from treatments 3 and 4 (ranging 9885-13110
μS/cm). The EC recorded in ‘planted’ samples from treatments 3 and 4 and samples from all other treatments
was below the recommended guideline of 2000 μS/cm.
Ammoniacal nitrogen (NH4-N) was determined to be 8530 mg/kg (mean average) in the unamended AD cake,
and >280,000 mg/kg (mean average) in the AD liquor. Subsequently, values of 2,300-5,600 mg/kg NH4-N (mean
average) were recorded in ‘pure’ treatments 3 and 4; however, these values were much lower in the ‘planted’
samples from treatments 3 and 4 and all other treatments (ranging < 1 - ~300 mg/kg NH4-N)
For the most part, data variability between duplicate samples is acceptable (relative standard deviation 20% for
90% of the paired samples). However, relative standard deviation’s of 50, 70 and >100% were also recorded.
Statistical confidence in the experimental results may benefit from the use of triplicate samples in any future
investigations.
Future Work
The experiment has been installed successfully and appropriate basal measurements of soil chemistry and tree
height have been taken, in anticipation of changes and response to the different treatments during the 2011
growth season. To maximise the benefits of the investment, further work should be scheduled to maintain the
experiment, keeping trees weed-free during the next five growing season(s). Further soil sampling and analysis
is suggested towards the end of the autumn and annually thereafter. Tree survival will be assessed at the
beginning of the growing season, but together with tree height (and thus tree growth), this should be repeated
just before leaf fall in the autumn of each year. Sampling of leaf tissue in July or August for analysis of plant
macronutrients is also advisable, in order to examine differences in nutrient take up from the soil treatments, and
the balance of nutrients. The latter is important as an overall indicator of site fertility and likely plant response.
Anaerobic Digestate and Compost Trials in Commercial Forestry 4
Contents1.0 Introduction ............................................................................................................................. 82.0 Exemptions/Licensing .............................................................................................................. 93.0 Methodology .......................................................................................................................... 104.0 Results ................................................................................................................................... 125.0 Future Work ........................................................................................................................... 15References ......................................................................................................................................... 16
Appendix 1 Location of AD Experiment Appendix 2 The Certificate of Ecological Improvement, Pollution Risk Assessment, Application
for Exemption (11 October 2010) and Written Approval from SEPA (25 October 2010)
Appendix 3 Experimental Details Appendix 4 Experimental Layout Appendix 5(A) Results of PAS100 Compost Analysis Appendix 5(B) Results of Anaerobic Digestate Liquor Analysis Appendix 6 Certificate of Analysis and Laboratory Results Appendix 7 Preliminary Results. Baseline chemical compostion of unamended soil, compost, AD
products and treatments Appendix 8 Tree Height at Planting Appendix 9 Photographic Records
Anaerobic Digestate and Compost Trials in Commercial Forestry 5
Use of in forestry – preliminary resultsGlossary
Aggregation: refers to the way in which sand, silt and clay particles come together to form a soil structure.
Ameliorant: substance added to soil to improve growing conditions for plants.
Anaerobic digestate: the fibrous, liquor or sludge-based combination of the two fractions produced by the breakdown of biodegradable material in the absence of oxygen.
Attrition: as part of soil remediation technology, removes fine particles and contaminants from the surface of primary material (soil).
Biomass: refers to the mass of biological organisms in an area of ecosystem at any given time.
Brownfield: refers to both known contaminated sites and any land or premises which have previously been used or developed and not currently fully in use (this excludes agricultural land).
Bulk density: the mass of a unit volume of soil, generally expressed in g/cm³. Light and porous soils have low bulk densities, whereas heavy and compacted soils have high bulk densities.
Carbon sequenstation: long-term storage of carbon dioxide or other forms of carbon to mitigate global warming.
Cation exchange capacity (CEC): the total amount of exchangeable cations that a particular soil, or soil forming material can absorb at a given pH. Light textured soils (in the sandy categories) possess low cation exchange capacities (CEC) and adding compost raises the CEC of these soils. This enables the soil to better hold onto nutrients, such as potash and nitrogen, which would otherwise leach beyond the rooting depth.
Compost: solid particulate materials that is the result of composting, that has been sanitised and stabilised and that confers beneficial effects when added to soil, used as a component of a growing medium, or is used in another way in conjunction with plants. This definition refers to BSI PAS 100 compost for the purposes of this document.
Composting: process of controlled biological decomposition of biodegradable materials under managed conditions that are predominantly aerobic and that allow the development of thermophilic temperatures as a result of biologically produced heat.
Domestic use: compost use by members of the public in their own gardens, communal or shared gardens, and allotments.
Electrical conductivity: measurement relating to the concentration of soluble ionic constituents, particularly ammonium, calcium, chloride, magnesium, nitrate, phosphate, potassium, sodium and sulphate.
Food derived compost: Compost that has been made from suitable low-risk food wastes such as household and commercial kitchen wastes. Facilities producing such composts are authorised by Animal Health to ensure that they achieve appropriate conditions to ensure their safety.
Fertiliser: soil amendment containing nutrients (macronutrients and micronutrients), added to promote plant growth.
Green compost: The feedstock used to produce green compost is source segregated material collected independently from other waste streams from sources such as domestic gardens, municipal parks and recreational areas.
Green waste: Arboreal and other botanical residues such as grass clippings and other plan residues derived from parks, gardens, nurseries and amenity areas and sometimes waste from vegetable or fruit processing activities.
Anaerobic Digestate and Compost Trials in Commercial Forestry 6
Use of in forestry – preliminary resultsGrowing medium: material, other than soils in situ, in which plants are grown.
Land reclamation: the recovery of land from a brownfield or underutilised state to make it suitable for reuse achieved through stabilisation, contouring, maintenance, conditioning, reconstruction and vegetation establishment.
Land remediation: the process of making a site fit-for-purpose through the removal or containment of contaminants. Environmental damage is reversed or treated through the management, removal, sealing or treatment of dangerous substances or stabilisation in order to render the site safe for a specific use, but not necessarily for all possible uses.
Land restoration: the process of making a site fit-for-purpose through (among activities carried out), amelioration of the site’s soil or soil forming materials.
Micro-organisms: include bacteria, algae, fungi and protozoa. They recycle nutrients and actively decompose organic matter.
Mulch: substance spread and allowed to remain on the soil surface to conserve soil moisture, suppress weeds and shield soil particles from the erosive forces of raindrops, run-off and wind.
Oxygen diffusion capacity: the capacity of the soil to transfer oxygen to plant roots.
PAS: Publicly Available Specification.
Rotavator: a machine designed to break up soil using rotating blades.
Sewage sludge cake: dewatered, organic-rich sewage sludge that is an output from the sewage treatment process.
Soil improver: material added to soil in situ primarily to maintain or improve its physical properties, and which may improve its chemical and/or biological properties or activity.
Stable, stabilised: degree of processing and biodegradation at which the rate of biological activity under conditions favourable for aerobic biodegradation has slowed and microbial respiration will not significantly resurge under altered conditions, such as manipulation of moisture and oxygen levels, or temperature or the addition of a source of water soluble nitrogen.
Subsoil/substrata: the layer of soil below the layer of topsoil.
Sustainable Urban Drainage Systems (SUDS): surface water drainage systems developed in line with the ideals of sustainable development are collectively referred to as Sustainable Urban Drainage Systems (SUDS).
Topsoil manufacture: blending of soils available on site and potentially other organic or inorganic materials with BSI PAS100 compost to produce a soil that suits the requirements of the site and which provides the same function as topsoil.
Tilth: state of aggregation of soil and its condition for supporting plant growth.
Topsoil: the uppermost layer of soil, where the majority of biological soil activity, concerning micro-organisms and organic matter, occurs.
Water holding capacity: the ability of soil to retain water and thus making it available for a longer period of time in dry conditions.
Wetlands: an area where the soil is saturated with moisture either permanently or seasonally.
Anaerobic Digestate and Compost Trials in Commercial Forestry 7
Use of in forestry – preliminary resultsAcknowledgements
The authors would like to thank Fraser Reid of SEPA for the very prompt consideration of the request for
exemption without which the trials could not have been progressed.
The authors would also like to thank Mike Hogg of Scottish Water Horizons and staff at the Deerdykes facility
where the AD was sourced.
Anaerobic Digestate and Compost Trials in Commercial Forestry 8
Use of in forestry – preliminary results1.0 Introduction
This report describes the establishment of a comprehensive field trial of two types of anaerobic digestate (AD),
with and without compost, on the growth of trees. This research was funded by Zero Waste Scotland/WRAP as
Project OBF 013-004. It was undertaken by David Jarvis Associates Limited (DJA) and Forest Research (FR), the
research agency of the Forestry Commission.
Anaerobic digestion (AD) involves the break down of biodegradable material in the absence of oxygen by micro-
organisms called methanogens. It is already widely used to treat wastewater in the UK and is increasingly used to
treat other organic wastes, including domestic and commercial food waste, manures and biofuel crops. Digestate
can come in three forms; fibrous, liquor or a sludge-based combination of the two fractions. It is an organic
material, high in nutrients such as nitrogen and phosphorus, making it potentially valuable as a substitute for
artificial fertilisers.
Traditionally, forestry in Britain has not been a large consumer of fertiliser in comparison with agriculture (Moffat
and Williamson, 1991). In the second half of the last century, fertilisers, mainly of phosphorus and nitrogen,
were used to establish new crops of conifer trees on poor soils in the uplands of Britain (Taylor, 1993). In the
1980s and 90s, attention moved to the use of sewage sludges (liquid and cake) as a means of promoting tree
growth and as a suitable sink or disposal route (Wolstenholme et al., 1992). More recently, interest has been
expressed in the use of composts (Moffat, 2006; Moffat and McKay, 2008).
In tandem with changes in types of organic material on offer to forestry, the nature of this industry has been
developing too. In the 1990s, considerable interest was expressed in the growth of Short Rotation Crops (SRC)
of willow and poplar for renewable energy, and the likely increase in demand for nutrients that this intensive
system would require. At that time, due consideration was given to the utility of sewage sludges for maintaining
site fertility (Bardos et al., 2001). More recently, attention has moved to Short Rotation Forestry (SFR) systems,
where trees of quick-growing species are cultivated for biomass over a 15-20 year period (McKay, 2011).
Although this system is currently being targeted at ex-agricultural land and relatively fertile soils, the greater
demand on nutrition compared to slower growing crops may also mean that some form of replenishment might
be beneficial on some sites in order to maintain nutrient capital and/or to stimulate faster growth (Vanguelova
and Pitman, 2011).
To date, there has been little exploration of the potential benefits of application of anaerobic digestates for tree
growth in Britain. The Wastes Protocols Project (2009), sponsored by WRAP and the Environment Agency,
considered that forest land suitable for receiving sewage sludge and/or MSW composts would also be suitable for
AD, although transport costs would reduce the overall amount potentially used to around 2 million tonnes per
year. However, the chemical qualities of AD, whilst similar in some ways to sewage sludge, are also different, the
former containing large quantities of ammonia unless maturated. It was therefore considered important to field
test the use of AD on trees in a scientifically replicated experiment. A site at the Forestry Commission Newton
nursery, Morayshire in Scotland was chosen for this purpose (Grid ref: NJ15886365) (Appendix 1).
Anaerobic Digestate and Compost Trials in Commercial Forestry 9
Use of in forestry – preliminary results2.0 Exemptions/Licensing
Prior to commencement of the trials, an application for exemption (Paragraph 7) under the Waste Management
Licensing Regulations 1994 (as amended) was submitted to the Scottish Environment Protection Agency (SEPA)
together with a Certificate of Ecological Improvement and a Pollution Risk Assessment.
The Certificate of Ecological Improvement, Pollution Risk Assessment, Application for Exemption (11 October
2010) and Written Approval from SEPA (25 October 2010) are included in Appendix 2.
Anaerobic Digestate and Compost Trials in Commercial Forestry 10
Use of in forestry – preliminary results3.0 Methodology
The detailed experimental plan is given in Appendix 3. The experiment was designed to examine whether
application of two AD digestate products to tree planting pits at the time of tree planting would enhance soil
conditions and tree growth, on its own or in conjunction with a PAS100 compost product. In addition, we wished
to compare responses against the mulching power of PAS100 compost as a separate treatment.
Composts tend to have large carbon to nitrogen ratios, and are therefore a potential sink for the large amounts of
nitrogen that ADs contain. It was thus envisaged that soil treatment including a mixture of AD and compost
might prolong the fertilising effects of the AD against the effects of leaching whilst protect the tree seedling from
exposure to excessive amounts of soluble nutrients, especially ammonia. A tree considered for its potential for
Short Rotation Forestry systems, Italian alder (Alnus cordata), was chosen as the test species. Alders are also
important in the revegetation of reclaimed brownfield land, another potential opportunity for AD recycling
(Wastes Protocols Project, 2009). An experimental design with three replicates of each treatment in a
randomised block layout was chosen. Appendix 4 shows the detailed layout of the treatment plots.
The nature of the site and its location determined in part the amounts of AD and compost that could be applied
experimentally. Newton nursery lies in a designated Nitrate Vulnerable Zone, restricting the application of total
nitrogen to no more than 250 kg N ha-1. Application rates chosen to maximise the application of AD whilst
allowing the study of interaction between AD and compost are given in Table 1, below.
1) Control – no AD or compost application
2) 50 mm PAS100 added to soil surface as weed suppressant
3) 50 mm PAS100 incorporated
4) 50 mm PAS 100 drip fed with 50 kg N in leachate to give 250 kg N ha-1
5) 12 mm PAS 100 made up to equivalent of 250 kg N ha-1 with AD digestate
6) 12 mm PAS 100 made up to equivalent of 250 kg N ha-1 with AD leachate
7) 12 mm PAS 100 made up by 50 kg N from leachate + digestate to 250 kg N ha-1
Table 1. Rates of application of AD and compost materials
AD materials used for the experiment at Newton nursery were sourced from the Scottish Water Horizons
Deerdykes facility near Cumbernauld. This is a ‘brand new’ facility, opened in Spring 2010, with the capability to
convert 30,000 tonnes of solid and liquid food waste into around 8,000 megawatts of power each year. The
experiment used some of the first AD materials produced by the plant. PAS100 compliant compost was also
sourced from Scottish Water Horizons. Analyses of the three organic materials used in the experiment are given
in Appendix 5.
The detailed timetable for establishing the experiment is also given in Appendix 3. Site preparation work began
in October 2010, and further operations continued through November. Tree planting was commenced at the end
of November, but was interrupted twice by the heavy snows experienced in the winter months. The planting was
eventually completed in January 2011. The heights of all trees at planting were measured. Soil samples were
Anaerobic Digestate and Compost Trials in Commercial Forestry 11
Use of in forestry – preliminary results
taken for analysis as prescribed and despatched to Forest Research’s chemical laboratories in January. Some
analyses were commissioned from an external laboratory, SAL Ltd, in Manchester.
Anaerobic Digestate and Compost Trials in Commercial Forestry 12
Use of in forestry – preliminary results4.0 Results
As the main element of this research contract was the establishment of the experiment, there are few results to
report at this stage.
Generally
Initial results are provided describing a baseline chemical composition of the:
- unamended top soil
- unamended anaerobic digestate cake
- unamended PAS100 green compost
- unamended liquor digestate; and,
- treatments 1-7.
For each treatment, duplicate samples (occasionally single samples) were taken of the ‘pure’ and ‘planted’ media.
The wide range of analyses selected can provide an indication of the suitability of the soil, compost and anaerobic
digestate (AD) products for tree establishment and may be used to assess risks posed to the environment; for
example, by potentially toxic elements, organic contaminants or high nutrient loadings. Results from future
investigations may be compared with these baseline figures to assess the impact of each treatment on tree
growth.
The analyses conducted on the soil, compost and AD (cake and liquor), and treatment samples were:
- pH
- Conductivity
- Nitrogen (as total, ammonium-N and nitrate-N)
- Carbon (as total, total inorganic and total organic)
- Organic matter
- Nutrients (P, K, Ca, Mg)
- Elemental composition (covering potential toxic as well as essential nutrients: Na, Al, Fe, Mn, S, Ba, Cd,
Co, Cr, Cu, Ni, Pb, Sr, Zn, As, B, Hg, Zr, Mo, Sb, Se, Sn)
- Visible contaminants
- Total and speciated polycyclic aromatic hydrocarbons (PAH) (specifically: USEPA16 PAH)
- Total Petroleum Hydrocarbons (TPH) (as well as the sub-divisions: C10-C40 and C35-C40)
All analysis were conducted by Forest Research’s chemical laboratories in Farnham, Surrey, except the Total and
Speciated PAH and the TPH analyses, which were conducted by SAL Ltd, in Manchester. Analyses were
conducted in January 2011.
Preliminary results
Mean average results of the chemical analyses of the soil, compost, AD product and treatment samples are
represented in Tables 1 and 2. For the most part, results are typical and as expected for each of the media and
sample treatments, and in accordance with the experimental design. A difference between mean averages for
Anaerobic Digestate and Compost Trials in Commercial Forestry 13
Use of in forestry – preliminary results
the ‘pure’ and ‘planted’ samples was observed within treatments for many of the chemical parameters analysed
and these are presented below. An overview commentary on the results is presented below; exceptional results
are discussed.
pH analysis demonstrated that the planting media and sample treatments were mostly acidic (but ranged 5.3-7.9)
and favourable to tree establishment. Total nitrogen ranged 2-16% for the compost and AD products. Total
carbon ranged 21-61% and increased in the order PAS compost < AD cake < AD digestate. In each case, the
carbon was almost entirely organic carbon; total inorganic carbon contents were <1%. The total nitrogen and
carbon values equate to C:N ratios of 10-15 for the unamended soil, compost and AD cake, resulting in C:N ratios
of 11-14 in the treatment plots.
The concentrations of potentially toxic elements demonstrated that there were no unacceptable risks posed by
the soil, compost or AD products for the elements cadmium, chromium, copper, nickel, zinc, arsenic, boron,
mercury or selenium, as recorded concentrations were below the UK’s soil guideline values for ‘residential’
locations (comparison is made to the SGVs for ‘residential’ locations as these are the most conservative of the
SGVs available). Guideline values are not currently available upon which to assess the risk posed by the other
potentially toxic elements.
Analysis of the organic contaminant loadings of the compost and AD products demonstrated that the total
petroleum hydrocarbon (TPH) concentrations were small and posed no significant risk, as they are within LQM’s
residential generic acceptance criteria of <12,000 mg/kg. Similarly, no unacceptable risks are posed by total PAH
concentrations in the compost or AD products, with all values below the 40 mg/kg intervention level presented by
the Dutch Ministry of Housing, Spatial Planning and Environment, which is often used as a guideline in the
absence of a UK standard. The highest total PAH concentration observed was 5 mg/kg (mean 3.4 mg/kg) in the
PAS compost.
The electrical conductivity (EC) of the PAS compost, the AD liquor and cake was high (10-36,000 μS/cm). The
resultant EC was subsequently high in the ‘pure’ samples taken from treatments 3 and 4 (ranging 9885-13110
μS/cm). The EC recorded in ‘planted’ samples from treatments 3 and 4 and samples from all other treatments
was below the recommended guideline of 2000 μS/cm.
Ammoniacal nitrogen (NH4-N) was determined to be 8530 mg/kg (mean average) in the unamended AD cake,
and >280,000 mg/kg (mean average) in the AD liquor. Subsequently, values of 2,300-5,600 mg/kg NH4-N (mean
average) were recorded in ‘pure’ treatments 3 and 4; however, these values were much lower in the ‘planted’
samples from treatments 3 and 4 and all other treatments (ranging < 1 - ~300 mg/kg NH4-N)
For the most part, data variability between duplicate samples is acceptable (relative standard deviation 20% for
90% of the paired samples). However, relative standard deviation’s of 50, 70 and >100% were also recorded.
Statistical confidence in the experimental results may benefit from the use of triplicate samples in any future
investigations.
Anaerobic Digestate and Compost Trials in Commercial Forestry 14
Use of in forestry – preliminary results
Tree heights at planting
Tree heights at planting are given in Table 2 and Appendix 6.
)treatment 1 2 3 Meana 101 95 109 102b 97 95 95 96c 101 93 87 94d 97 99 84 93e 88 106 90 95f 104 98 89 97g 97 106 85 96Mean 98 99 91 96
Block
Table 2. Mean tree heights at planting (mm). Means are the average of 9 trees per plot
Mean heights of trees range from 84 to 106 mm. Differences have not been examined by statistical analysis, but
appear to be very small or non existent between treatments, though trees in Block 3 may be slightly smaller than
in the other two blocks. These differences, if apparent, will be taken into account in further statistical testing of
height growth later in 2011.
Anaerobic Digestate and Compost Trials in Commercial Forestry 15
Use of in forestry – preliminary results5.0 Future Work
The experiment has been installed successfully and appropriate basal measurements of soil chemistry and tree
height have been taken, in anticipation of changes and response to the different treatments during the 2011
growth season. To maximise the benefits of the investment, further work should be scheduled to maintain the
experiment, keeping trees weed-free during the next five growing season(s). Further soil sampling and analysis
is suggested towards the end of the autumn and annually thereafter. Tree survival will be assessed at the
beginning of the growing season, but together with tree height (and thus tree growth), this should be repeated
just before leaf fall in the autumn of each year. Sampling of leaf tissue in July or August for analysis of plant
macronutrients is also advisable, in order to examine differences in nutrient take up from the soil treatments, and
the balance of nutrients. The latter is important as an overall indicator of site fertility and likely plant response.
Anaerobic Digestate and Compost Trials in Commercial Forestry 16
Use of in forestry – preliminary results
References
Bardos, P., French, C., Lewis, A., Moffat, A. and Nortcliff, S. 2001. Marginal land restoration scoping study: information review and feasibility study. Ex Site Research Project Report 1. Land Quality Press, Nottingham, 104 pp.
McKay, H. 2011. Introduction. In Forest Research. Short rotation forestry. Review of growth and environmental impacts. Forest Research e-monograph (in press).
Moffat, A.J. 2006. The use of sewage sludges and composts in forestry. Forestry Commission Information Note 79, Forestry Commission, Edinburgh.
Moffat, A.J. and McKay, H.M. 2008. The potential of British forests to recycle organic wastes. Quarterly Journal of Forestry 102, 21-27.
Moffat, A.J. and Williamson, D.R. 1991. Review of fertiliser and herbicide use in UK tree crop systems. Journal of the Science of Food and Agriculture 57, 1-18.
Taylor, C.M.A. 1993. Forest fertilisation in Britain. Forestry Commission Bulletin 95. HMSO, London.
Vanguelova, E. and Pitman, R. 2011. Impacts of Short Rotation Forestry on soil sustainability. In Forest Research. Short rotation forestry. Review of growth and environmental impacts. Forest Research e-monograph (in press).
Waste Protocols Project 2009. Anaerobic Digestate. Partial Financial Impact Assessment of the introduction of a Quality Protocol for the production and use of anaerobic digestate. Environment Agency, Bristol. http://www.environment-agency.gov.uk/static/documents/Business/Financial_impact_assessment_for_anaerobic_digestate.pdf
Wolstenholme, R., Dutch, J., Moffat, A.J., Bayes, C.D. and Taylor, C.M.A. 1992. A manual of good practice for the use of sewage sludge in forestry. Forestry Commission Bulletin 107. HMSO, London.
10
Appendix 1 Location of AD Experiment
FORESTRY COMMISSION RESEARCH AGENCY
SUMMARY EXPERIMENTAL RECORD FORM 11A SECTION: CFCC
Experiment Name: Misc 437 P2011 Compt No: Newton Nursery Map Ref: NJ1588063650 Series Sheet No: OS28
11
Appendix 2 The Certificate of Ecological Improvement, Pollution Risk Assessment, Application for Exemption (11 October 2010) and Written Approval from SEPA (25 October 2010)
12
Appendix 3 Experimental Details Initials:
AM
Date: Feb 2011 SUMMARY EXPERIMENTAL RECORD FORM 11A (PART 1)
Experiment Name:
Misc 437 P2011 District: Moray & Aberdeenshire FD
Branch: CFCC
Other Branch: Landowner: FC Review:
ExperimentTitle: Use of anaerobic digestate to establish treesPreamble: Anaerobic digestion (AD) is a technology increasingly used for the treatment of biodegradable
organic materials such as food and abattoir wastes. AD generates methane which is used to generate renewable energy. By products include digestate which commonly occurs in a liquid and a sludge based form. Both these materials are being examined for their potential to be applied to land in order to improve soil quality and fertility and thus to enhance plant growth. WRAP (Waste and Resources Action Programme) have funded research projects across Great Britain to explore these issues, and this experiment, sponsored by WRAP, is concerned with the effect of digestate on tree survival and growth.
Objectives: The experiment will examine whether application of two AD digestate products to tree planting pits at the time of tree planting will enhance soil conditions and tree growth, on its own or in conjunction with a PAS100 compost product.
Experimentaltreatments: Products & Active ingredients: (a) AD liquid digestate, (b) AD sludge digestate, (c) PAS100
compost, (d) Glyphosate for basal treatment (see below)
Experimental treatments:a) Untouched land. b) As above with PAS100 compost as a weed suppressant mat. c) Topsoil removed; PAS100 blanket installed; thin topsoil replaced d) As c) but including one agreed percentage of agreed AD liquid digestate incorporated into
the compost blanket. e) As d) but using the AD sludge digestate. f) As d) with a different agreed percentage. g) As e) with a different agreed percentage.
Design description
Randomised block design of treatments a) to g) with three replicates (total 21 plots).
Layout (numbers refer to unique plot number, letters refer to treatments given above) 1 b 2 g 3 d 4 a 5 c 6 f 7 e Blo8 a 9 d 10 g 11 b 12 e 13 f 14 c Blo
15 d 16 g 17 a 18 f 19 e 20 c 21 b BloBlocks to be aligned transverse to slope direction. Blocks to be separated by buffer strip of 3 metres width up and down the slope.
Plot size = Treatment plot = 5 x 5 trees planted at 1.5 m intervals. Assessment plot = inner 3 x 3 trees in each plot.
13
Total Area: (ha)
0 . 1 8 Design Code: RaBl No expt plots: 21
Area plot: (m2)
0 . 0 0 5 6 Plants / plot: 25 Varients:
Project No: 97000725 - Use of anaerobic digestate to establish trees Species: Name: D/b Code P Year Yield Class
Alnus cordata (Italian alder) 60-80cms5.1
0050100 2011 -
Features: D/b Code E/B
14
15
SITE DESCRIPTION
Situation: The experiment is situated within Forestry Commission Nursery at Newton approximately 350m from Newton Field Station. Travel west from Elgin along the A96. After 5.2km turn right onto the B9013, signed for Burghead. Turn right after 0.9km into the FC nursery yard. The Newton office is to the rear of the main nursery building.
Grid ref: NJ1588063650 Elevation: 20-25m asl RelativeElevation:
SSW - York Tower 0.8km 103 m asl. NNW - Tappock 3.9 km 87 m asl. WNW - Moray Firth 6.3 km 0 m asl E - Oak Wood 3.8 km 65 m asl.
Rainfall (mm):
700-750 mm
Aspect: EWHC:ExposureClass:
- Description:
Topex Class: Description:Flag Class: - Description:Slope Class: Description:Topography: Bioclimatic Assessment:
1. Accumulated temperature and potential water deficit: Warm, dry lowland.. 2. Exposure and accumulated frost. Moderately exposed with fairly mild winters. 3. Bioclimatic sub Region. Euoceanic, fairly humid northern temperate
Forest region: 13 Description: Eastern Moine Highlands Lithology: S Description: Torridonian sandstone and grit SoilGP./Ty./Ph.
6zc Description: Podzolic Gley Cultivated
Crop history: 5 Description: Tree Nursery CultivationHistory:
P Description: Complete cultivation
Vegetation Species
D/b Code FrequencyD/b code Desc
Dominance D/b Code Desc
Soil Gp. D/b Code7Z(c)
Previousspecies:
Name D/b Code Year felled
Fallow Chemicals Substance D/b Code E/B
Anaerobic Digestate and Compost Trials in Commercial Forestry 16
Initials: AM Date: Feb 2011 Sheet No:
SUMMARY EXPERIMENTAL RECORD FORM 11A (PART 2A)
ESTABLISHMENT DETAILS
Experiment Name: Misc 437 P2011
Establishment carried out by: Newton Field Station Staff
Weather at time of planting: Cold, overcast with a slight easterly wind
Operation Date Details / AuthorityChemical weeding 20-10-2010 Existing vegetation treated with Glyphosate at 5L/ha applied
by tractor mounted sprayer by Newton Nursery staff. Weather at time of spraying was cool and dry with very little wind.
Cultivation– 17-11-2010 Complete plough with tractor mounted agricultural plough followed by power harrowing. Completed by Newton Nursery staff. Weather at time of spraying was cool and wet.
Layout 23/25-11-2010
Plots laid out with 1.5m buffers across the slope and 3m buffers up and down the slope. Plot corners marked with 50x50mm wooden posts. Dimensions as per the experiment plan
Planting preparation 23/26-11-10 All soil pits dug out to create a 45x45x30cm planting pit. (Telephone conversation A.Moffat/A.Macleod – agreed to change pit depth from 45 to 30cm)
Digestate sampling 23-11-2010 Samples of the three products (a) AD liquid digestate, (b) AD sludge digestate, and (c) PAS100 compost collected from across the range of containers and couriered to Alice Holt for analysis.
Planting 25/11/10 Treatments (a) and (b) planted and weed suppressant applied as per experiment plan.
Work abandoned due to heavy snow 29-11-2011
Planting 13/14-12-2010
Treatments (c), (d) and (e) planted as per experiment plan. Ground conditions poor with heavy water logging following snow melt. A number of pits need to be excavated again
Work abandoned due to heavy snow 17-12-2010
Planting 17/19-01-2011
Treatments (e), and (f) planted as per experiment plan.Ground conditions poor with heavy water logging following snow melt. A number of pits need to be excavated again
Soil Sampling 25-11-2010 /19-012011
Five representative sub-samples from each of the six treatments excluding the one where compost is used as a mulch mat were collected during the planting process and sent to Alice Holt for analysis.
Rabbit Netting 20-01-2011 Temporary rabbit netting was erected around the experiment by Newton staff
Anaerobic Digestate and Compost Trials in Commercial Forestry 17
Appendix 4 Experimental Layout
MIS
C 4
37 P
11 -
Use
of A
naer
obic
Dig
esta
te (A
D) t
o Es
tabl
ish
Tree
s
NPl
ot S
ize
= 5
tree
s x
5 tr
ees
x 1.
5mA
sses
smen
t Plo
t = 3
tree
s x
3 tr
ees
Buf
fer b
etw
een
plot
s an
d bl
ocks
= 3
m u
p/do
wn
slop
e 1
.5 a
cros
s sl
ope
3d2g
1b
BLO
CK
ITR
EATM
ENTS
a)U
ntou
ched
land
– p
lant
ed w
ith A
lder
.
b)As
abo
ve w
ith P
AS10
0 co
mpo
st a
s a
wee
d su
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ssan
t m
at.
3d 4a5c
6f
2g
c)To
psoi
l rem
oved
; P
AS10
0 bl
anke
t in
stal
led;
thi
n to
psoi
l rep
lace
d an
d pl
ante
d w
ith A
lder
.
d)As
c)
but
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g on
e ag
reed
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cent
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o f a
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d AD
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or in
corp
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ed in
to t
he
com
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)A
d)b
ti
thAD
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dt
9d8a
7e
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d)
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g th
e AD
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i-pro
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.
f)As
d)
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ed p
erce
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BLO
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IIg)
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) w
ith a
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12e
11b
10g
13f
15d
14c
BLO
CK
III
16g
17a
18f
21b
20c
19e
Anaerobic Digestate and Compost Trials in Commercial Forestry 18
Appendix 5(A) Results of PAS100 Compost Analysis
Anaerobic Digestate and Compost Trials in Commercial Forestry 19
Anaerobic Digestate and Compost Trials in Commercial Forestry 20
Anaerobic Digestate and Compost Trials in Commercial Forestry 21
Appendix 5(B) Results Of Anaerobic Digestate Liquor Analysis
Anaerobic Digestate and Compost Trials in Commercial Forestry 22
ANNEX 4 (C). RESULTS OF ANAEROBIC DIGESTATE SLUDGE ANALYSIS
Anaerobic Digestate and Compost Trials in Commercial Forestry 23
Anaerobic Digestate and Compost Trials in Commercial Forestry 24
Anaerobic Digestate and Compost Trials in Commercial Forestry 25
Anaerobic Digestate and Compost Trials in Commercial Forestry 26
Appendix 6 Certificate of Analysis and Laboratory Results
Scientific Analysis Laboratories
Certificate of Analysis
Hadfield HouseHadfield Street
CornbrookManchester
M16 9FETel : 0161 874 2400Fax : 0161 874 2468
Report Number: 230065-1
Date of Report: 24-Mar-2011
Customer: Centre for Forestry and Climate ChangeAlice Holt LodgeFarnhamSurreyGU10 4LH
Customer Contact: . Francois Bochereau
Customer Job Reference: 92000006Customer Purchase Order: B606543Date Job Received at SAL: 04-Mar-2011
Date Analysis Started: 08-Mar-2011Date Analysis Completed: 24-Mar-2011
The results reported relate to samples received in the laboratoryOpinions and interpretations expressed herein are outside the scope of UKAS accreditationThis report should not be reproduced except in full without the written approval of the laboratoryTests covered by this certificate were conducted in accordance with SAL SOPs
This document has been printed from a digitally signed master copy
Scientific Analysis Laboratories is a
limited company registered in England and
Wales (No 2514788) whose address is at
Hadfield House, Hadfield Street, Manchester M16 9FE
1549
Report checkedand authorised by :
Issued by :Mr Ross WalkerCustomer Services Manager
Page 1 of 9
SAL Reference: 230065
Customer Reference: 92000006
Soil Analysed as Soil
TPH
SAL Reference 230065 001 230065 002 230065 003 230065 004 230065 005 230065 006 230065 007 230065 008 230065 009
Customer Sample Reference A1 B1 C1 A2 B2 C2 A3 B3 C3
Date Sampled 03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
Determinand Method TestSample LOD Units
Total Petroleum Hydrocarbons T8 AR 1 mg/kg (100) <3 <1 <1 840 1500 810 360 280 490
TPH (C35-C40) T8 AR 1 mg/kg (100) <3 <1 <1 43 37 42 17 24 31
TPH C10-C40 (sum) T85 AR 1 mg/kg (100) <3 <1 <1 880 1500 850 380 300 520
SAL Reference: 230065
Customer Reference: 92000006
Soil Analysed as Soil
TPH
SAL Reference 230065 010 230065 011 230065 012 230065 013 230065 014 230065 015 230065 016 230065 017 230065 018
Customer Sample Reference 1 2 3 4 5 6 7 8 9
Date Sampled 03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
Determinand Method TestSample LOD Units
Total Petroleum Hydrocarbons T8 AR 1 mg/kg 7 <1 5 5 <1 <1 <1 (100) <2 (100) <2
TPH (C35-C40) T8 AR 1 mg/kg <1 <1 <1 <1 <1 <1 <1 (100) <2 (100) <2
TPH C10-C40 (sum) T85 AR 1 mg/kg 7 <1 5 5 <1 <1 <1 (100) <2 (100) <2
SAL Reference: 230065
Customer Reference: 92000006
Soil Analysed as Soil
TPH
SAL Reference 230065 019 230065 020 230065 021 230065 022 230065 023 230065 024 230065 025 230065 026 230065 027
Customer Sample Reference 10 11 12 13 14 15 16 17 18
Date Sampled 03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
Determinand Method TestSample LOD Units
Total Petroleum Hydrocarbons T8 AR 1 mg/kg 5 38 210 11 6 25 41 29 4
TPH (C35-C40) T8 AR 1 mg/kg (100) <2 (100) <3 9 <1 <1 <1 2 <1 <1
TPH C10-C40 (sum) T85 AR 1 mg/kg 5 38 220 11 6 25 43 29 4
SAL Reference: 230065
Customer Reference: 92000006
Soil Analysed as Soil
TPH
SAL Reference 230065 028 230065 029 230065 030 230065 031 230065 032 230065 033 230065 034 230065 035 230065 036
Customer Sample Reference 19 20 21 22 23 24 25 26 27
Date Sampled 03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
Determinand Method TestSample LOD Units
Total Petroleum Hydrocarbons T8 AR 1 mg/kg 24 14 20 34 55 18 31 21 31
TPH (C35-C40) T8 AR 1 mg/kg <1 <1 <1 <1 (100) <3 <1 (100) <2 <1 (100) <2
TPH C10-C40 (sum) T85 AR 1 mg/kg 24 14 20 34 55 18 31 21 31
This document has been printed from a digitally signed master copy
Produced by Scientific Analysis Laboratories, Hadfield House, Hadfield Street, Cornbrook, Manchester, M16 9FE Page 2 of 9
SAL Reference: 230065
Customer Reference: 92000006
Soil Analysed as Soil
TPH
SAL Reference 230065 037 230065 038 230065 039 230065 040 230065 041 230065 042 230065 043 230065 044 230065 045
Customer Sample Reference 28 29 30 31 32 33 34 35 36
Date Sampled 03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
Determinand Method TestSample LOD Units
Total Petroleum Hydrocarbons T8 AR 1 mg/kg 29 25 7 <1 <1 <1 6 24 2
TPH (C35-C40) T8 AR 1 mg/kg (100) <2 (100) <2 2 <1 <1 <1 (100) <2 (100) <2 <1
TPH C10-C40 (sum) T85 AR 1 mg/kg 29 25 9 <1 <1 <1 6 24 2
SAL Reference: 230065
Customer Reference: 92000006
Soil Analysed as Soil
TPH
SAL Reference 230065 046 230065 047 230065 048 230065 049 230065 050 230065 051 230065 052 230065 053 230065 054
Customer Sample Reference 37 38 39 40 41 42 43 44 45
Date Sampled 03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
Determinand Method TestSample LOD Units
Total Petroleum Hydrocarbons T8 AR 1 mg/kg (100) <2 3 (100) <3 12 3 2 (100) <2 2 <1
TPH (C35-C40) T8 AR 1 mg/kg (100) <2 (100) <2 (100) <3 (100) <2 (100) <2 (100) <2 (100) <2 <1 <1
TPH C10-C40 (sum) T85 AR 1 mg/kg (100) <2 3 (100) <3 12 3 2 (100) <2 2 <1
SAL Reference: 230065
Customer Reference: 92000006
Soil Analysed as Soil
TPH
SAL Reference 230065 055 230065 056 230065 057 230065 058 230065 059 230065 060 230065 061 230065 062 230065 063
Customer Sample Reference 46 47 48 49 50 51 52 53 54
Date Sampled 03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
Determinand Method TestSample LOD Units
Total Petroleum Hydrocarbons T8 AR 1 mg/kg 2 2 (100) <2 7 3 7 (100) <2 (100) <2 (100) <2
TPH (C35-C40) T8 AR 1 mg/kg <1 <1 (100) <2 (100) <2 (100) <2 (100) <3 (100) <2 (100) <2 (100) <2
TPH C10-C40 (sum) T85 AR 1 mg/kg 2 2 (100) <2 7 3 7 (100) <2 (100) <2 (100) <2
SAL Reference: 230065
Customer Reference: 92000006
Soil Analysed as Soil
TPH
SAL Reference 230065 064 230065 065 230065 066 230065 067 230065 068 230065 069 230065 070 230065 071 230065 072
Customer Sample Reference 55 56 57 58 59 60 61 62 63
Date Sampled 03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
Determinand Method TestSample LOD Units
Total Petroleum Hydrocarbons T8 AR 1 mg/kg 5 (100) <2 (100) <2 (100) <3 (100) <2 (100) <2 (100) <2 (100) <2 (100) 2
TPH (C35-C40) T8 AR 1 mg/kg (100) <2 (100) <2 (100) <2 (100) <3 (100) <2 (100) <2 (100) <2 (100) <2 (100) <2
TPH C10-C40 (sum) T85 AR 1 mg/kg 5 (100) <2 (100) <2 (100) <3 (100) <2 (100) <2 (100) <2 (100) <2 (100) 2
This document has been printed from a digitally signed master copy
Produced by Scientific Analysis Laboratories, Hadfield House, Hadfield Street, Cornbrook, Manchester, M16 9FE Page 3 of 9
SAL Reference: 230065
Customer Reference: 92000006
Soil Analysed as Soil
TPH
SAL Reference 230065 073 230065 074
Customer Sample Reference 64 65
Date Sampled 03-MAR-2011
03-MAR-2011
Determinand Method TestSample LOD Units
Total Petroleum Hydrocarbons T8 AR 1 mg/kg (100) <2 (100) <2
TPH (C35-C40) T8 AR 1 mg/kg (100) <2 (100) <2
TPH C10-C40 (sum) T85 AR 1 mg/kg (100) <2 (100) <2
SAL Reference: 230065
Customer Reference: 92000006
Soil Analysed as Soil
Total and Speciated USEPA16 PAH
SAL Reference 230065 001 230065 002 230065 003 230065 004 230065 005 230065 006 230065 007 230065 008 230065 009
Customer Sample Reference A1 B1 C1 A2 B2 C2 A3 B3 C3
Date Sampled 03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
Determinand Method TestSample LOD Units
Naphthalene T149 AR 0.01 mg/kg (119) <0.02 (119) <0.02 <0.01 0.07 0.02 0.02 0.02 (119) <0.02 0.01
Acenaphthylene T149 AR 0.01 mg/kg (119) <0.02 (119) <0.02 <0.01 (119) <0.02 (119) <0.02 <0.01 (119) <0.02 0.02 0.01
Acenaphthene T149 AR 0.01 mg/kg (119) <0.02 (119) <0.02 <0.01 0.04 0.02 0.02 0.05 0.04 0.05
Fluorene T149 AR 0.01 mg/kg (119) <0.02 (119) <0.02 <0.01 0.04 0.02 0.03 0.05 0.02 0.05
Phenanthrene T149 AR 0.01 mg/kg (119) <0.02 (119) <0.02 <0.01 0.15 0.04 0.06 0.38 0.23 0.39
Anthracene T149 AR 0.01 mg/kg (119) <0.02 (119) <0.02 <0.01 0.02 (119) <0.02 0.01 0.05 0.04 0.06
Fluoranthene T149 AR 0.01 mg/kg (119) <0.02 (119) <0.02 <0.01 0.11 0.02 0.04 0.49 0.48 0.48
Pyrene T149 AR 0.01 mg/kg (119) <0.02 (119) <0.02 <0.01 0.11 0.02 0.04 0.38 0.40 0.37
Benzo(a)Anthracene T149 AR 0.01 mg/kg (119) <0.02 (119) <0.02 <0.01 0.04 0.02 0.02 0.14 0.36 0.15
Chrysene T149 AR 0.01 mg/kg (119) <0.02 (119) <0.02 <0.01 0.04 0.02 0.02 0.16 0.36 0.17
Benzo(b/k)Fluoranthene T149 AR 0.01 mg/kg (119) <0.02 (119) <0.02 <0.01 0.13 0.04 0.06 0.52 2.0 0.60
Benzo(a)Pyrene T149 AR 0.01 mg/kg (119) <0.02 (119) <0.02 <0.01 0.04 0.02 0.02 0.09 0.46 0.11
Indeno(123-cd)Pyrene T149 AR 0.01 mg/kg (119) <0.02 (119) <0.02 <0.01 0.02 0.02 0.01 0.05 0.25 0.06
Dibenzo(ah)Anthracene T149 AR 0.01 mg/kg (119) <0.02 (119) <0.02 <0.01 0.02 (119) <0.02 <0.01 0.04 0.13 0.02
Benzo(ghi)Perylene T149 AR 0.01 mg/kg (119) <0.02 (119) <0.02 <0.01 0.02 (119) <0.02 0.01 0.05 0.23 0.06
PAH(total) T149 AR 0.01 mg/kg (119) <0.02 (119) <0.02 <0.01 0.85 0.26 0.36 2.5 5.0 2.6
SAL Reference: 230065
Customer Reference: 92000006
Soil Analysed as Soil
Total and Speciated USEPA16 PAH
SAL Reference 230065 010 230065 011 230065 012 230065 013 230065 014 230065 015 230065 016 230065 017 230065 018
Customer Sample Reference 1 2 3 4 5 6 7 8 9
Date Sampled 03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
Determinand Method TestSample LOD Units
Naphthalene T149 AR 0.01 mg/kg <0.01 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.03 <0.01 <0.01 <0.01
Acenaphthylene T149 AR 0.01 mg/kg <0.01 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.03 <0.01 <0.01 <0.01
Acenaphthene T149 AR 0.01 mg/kg <0.01 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.03 <0.01 <0.01 <0.01
Fluorene T149 AR 0.01 mg/kg <0.01 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.03 <0.01 <0.01 0.01
Phenanthrene T149 AR 0.01 mg/kg <0.01 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.03 0.01 0.01 0.05
Anthracene T149 AR 0.01 mg/kg <0.01 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.03 <0.01 <0.01 0.02
Fluoranthene T149 AR 0.01 mg/kg <0.01 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.03 0.02 0.01 0.05
Pyrene T149 AR 0.01 mg/kg <0.01 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.03 0.03 0.01 0.05
Benzo(a)Anthracene T149 AR 0.01 mg/kg <0.01 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.03 0.03 <0.01 0.02
Chrysene T149 AR 0.01 mg/kg <0.01 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.03 0.02 <0.01 0.02
Benzo(b/k)Fluoranthene T149 AR 0.01 mg/kg <0.01 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.03 0.05 0.01 0.02
Benzo(a)Pyrene T149 AR 0.01 mg/kg <0.01 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.03 0.01 <0.01 0.01
Indeno(123-cd)Pyrene T149 AR 0.01 mg/kg <0.01 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.03 0.01 <0.01 <0.01
Dibenzo(ah)Anthracene T149 AR 0.01 mg/kg <0.01 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.03 <0.01 <0.01 <0.01
Benzo(ghi)Perylene T149 AR 0.01 mg/kg <0.01 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.03 <0.01 <0.01 <0.01
PAH(total) T149 AR 0.01 mg/kg <0.01 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.03 0.18 0.04 0.24
This document has been printed from a digitally signed master copy
Produced by Scientific Analysis Laboratories, Hadfield House, Hadfield Street, Cornbrook, Manchester, M16 9FE Page 4 of 9
SAL Reference: 230065
Customer Reference: 92000006
Soil Analysed as Soil
Total and Speciated USEPA16 PAH
SAL Reference 230065 019 230065 020 230065 021 230065 022 230065 023 230065 024 230065 025 230065 026 230065 027
Customer Sample Reference 10 11 12 13 14 15 16 17 18
Date Sampled 03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
Determinand Method TestSample LOD Units
Naphthalene T149 AR 0.01 mg/kg (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 0.01
Acenaphthylene T149 AR 0.01 mg/kg (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 <0.01
Acenaphthene T149 AR 0.01 mg/kg (119) <0.02 (119) <0.02 0.02 (119) <0.02 (119) <0.02 (119) <0.02 0.02 (119) <0.02 <0.01
Fluorene T149 AR 0.01 mg/kg (119) <0.02 (119) <0.02 0.02 (119) <0.02 (119) <0.02 (119) <0.02 0.02 (119) <0.02 <0.01
Phenanthrene T149 AR 0.01 mg/kg 0.05 0.04 0.17 0.02 (119) <0.02 0.05 0.12 0.05 0.03
Anthracene T149 AR 0.01 mg/kg 0.02 0.02 0.04 (119) <0.02 (119) <0.02 (119) <0.02 0.02 (119) <0.02 0.01
Fluoranthene T149 AR 0.01 mg/kg 0.14 0.06 0.17 0.02 (119) <0.02 0.05 0.12 0.07 0.03
Pyrene T149 AR 0.01 mg/kg 0.12 0.06 0.13 0.02 (119) <0.02 0.03 0.10 0.05 0.04
Benzo(a)Anthracene T149 AR 0.01 mg/kg 0.06 0.06 0.06 0.02 (119) <0.02 0.03 0.04 0.04 0.02
Chrysene T149 AR 0.01 mg/kg 0.06 0.06 0.06 (119) <0.02 (119) <0.02 0.02 0.04 0.04 0.02
Benzo(b/k)Fluoranthene T149 AR 0.01 mg/kg 0.21 0.40 0.21 0.02 0.02 0.02 0.06 0.14 0.02
Benzo(a)Pyrene T149 AR 0.01 mg/kg 0.06 0.11 0.04 (119) <0.02 (119) <0.02 0.02 0.04 0.07 0.02
Indeno(123-cd)Pyrene T149 AR 0.01 mg/kg 0.03 0.04 0.02 (119) <0.02 (119) <0.02 0.02 0.02 0.05 0.01
Dibenzo(ah)Anthracene T149 AR 0.01 mg/kg 0.02 0.02 0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 <0.01
Benzo(ghi)Perylene T149 AR 0.01 mg/kg 0.03 0.04 0.02 (119) <0.02 (119) <0.02 0.02 0.04 0.05 0.01
PAH(total) T149 AR 0.01 mg/kg 0.80 0.91 1.0 0.10 0.02 0.26 0.64 0.56 0.22
SAL Reference: 230065
Customer Reference: 92000006
Soil Analysed as Soil
Total and Speciated USEPA16 PAH
SAL Reference 230065 028 230065 029 230065 030 230065 031 230065 032 230065 033 230065 034 230065 035 230065 036
Customer Sample Reference 19 20 21 22 23 24 25 26 27
Date Sampled 03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
Determinand Method TestSample LOD Units
Naphthalene T149 AR 0.01 mg/kg (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 0.03
Acenaphthylene T149 AR 0.01 mg/kg (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.03
Acenaphthene T149 AR 0.01 mg/kg (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.03
Fluorene T149 AR 0.01 mg/kg (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.03
Phenanthrene T149 AR 0.01 mg/kg 0.07 0.04 0.02 0.02 0.02 (119) <0.02 0.02 0.02 0.03
Anthracene T149 AR 0.01 mg/kg (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.03
Fluoranthene T149 AR 0.01 mg/kg 0.07 0.04 0.02 0.02 0.02 (119) <0.02 0.02 0.02 0.03
Pyrene T149 AR 0.01 mg/kg 0.05 0.04 (119) <0.02 0.02 0.02 (119) <0.02 0.02 (119) <0.02 0.03
Benzo(a)Anthracene T149 AR 0.01 mg/kg 0.03 (119) <0.02 (119) <0.02 0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.03
Chrysene T149 AR 0.01 mg/kg 0.03 (119) <0.02 (119) <0.02 0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.03
Benzo(b/k)Fluoranthene T149 AR 0.01 mg/kg 0.03 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.03
Benzo(a)Pyrene T149 AR 0.01 mg/kg (119) <0.02 (119) <0.02 (119) <0.02 0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.03
Indeno(123-cd)Pyrene T149 AR 0.01 mg/kg (119) <0.02 (119) <0.02 (119) <0.02 0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.03
Dibenzo(ah)Anthracene T149 AR 0.01 mg/kg (119) <0.02 (119) <0.02 (119) <0.02 0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.03
Benzo(ghi)Perylene T149 AR 0.01 mg/kg (119) <0.02 (119) <0.02 (119) <0.02 0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.02 (119) <0.03
PAH(total) T149 AR 0.01 mg/kg 0.28 0.12 0.04 0.18 0.06 (119) <0.02 0.06 0.04 0.12
This document has been printed from a digitally signed master copy
Produced by Scientific Analysis Laboratories, Hadfield House, Hadfield Street, Cornbrook, Manchester, M16 9FE Page 5 of 9
SAL Reference: 230065
Customer Reference: 92000006
Soil Analysed as Soil
Total and Speciated USEPA16 PAH
SAL Reference 230065 037 230065 038 230065 039 230065 040 230065 041 230065 042 230065 043 230065 044 230065 045
Customer Sample Reference 28 29 30 31 32 33 34 35 36
Date Sampled 03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
Determinand Method TestSample LOD Units
Naphthalene T149 AR 0.01 mg/kg (119) <0.02 (119) <0.02 <0.01 (119) <0.02 <0.01 (9) <0.02 <0.01 0.02 (119) <0.02
Acenaphthylene T149 AR 0.01 mg/kg (119) <0.02 (119) <0.02 <0.01 (119) <0.02 <0.01 (9) <0.02 <0.01 (119) <0.02 (119) <0.02
Acenaphthene T149 AR 0.01 mg/kg (119) <0.02 (119) <0.02 <0.01 (119) <0.02 <0.01 (9) <0.02 <0.01 (119) <0.02 (119) <0.02
Fluorene T149 AR 0.01 mg/kg (119) <0.02 (119) <0.02 <0.01 (119) <0.02 <0.01 (9) <0.02 <0.01 (119) <0.02 (119) <0.02
Phenanthrene T149 AR 0.01 mg/kg (119) <0.02 0.02 0.01 (119) <0.02 <0.01 (9) <0.02 0.03 (119) <0.02 (119) <0.02
Anthracene T149 AR 0.01 mg/kg (119) <0.02 (119) <0.02 <0.01 (119) <0.02 <0.01 (9) <0.02 0.01 (119) <0.02 (119) <0.02
Fluoranthene T149 AR 0.01 mg/kg 0.02 0.04 0.01 (119) <0.02 0.01 (9) <0.02 0.13 0.03 (119) <0.02
Pyrene T149 AR 0.01 mg/kg (119) <0.02 0.02 <0.01 (119) <0.02 <0.01 <0.02 0.11 0.02 (119) <0.02
Benzo(a)Anthracene T149 AR 0.01 mg/kg (119) <0.02 0.04 <0.01 (119) <0.02 <0.01 (9) <0.02 0.10 0.03 (119) <0.02
Chrysene T149 AR 0.01 mg/kg (119) <0.02 0.04 <0.01 (119) <0.02 <0.01 (9) <0.02 0.08 0.02 (119) <0.02
Benzo(b/k)Fluoranthene T149 AR 0.01 mg/kg (119) <0.02 0.05 <0.01 (119) <0.02 <0.01 (9) <0.02 0.13 0.02 (119) <0.02
Benzo(a)Pyrene T149 AR 0.01 mg/kg (119) <0.02 0.04 <0.01 (119) <0.02 <0.01 (9) <0.02 0.07 0.02 (119) <0.02
Indeno(123-cd)Pyrene T149 AR 0.01 mg/kg (119) <0.02 0.02 <0.01 (119) <0.02 <0.01 (9) <0.02 0.03 (119) <0.02 (119) <0.02
Dibenzo(ah)Anthracene T149 AR 0.01 mg/kg (119) <0.02 (119) <0.02 <0.01 (119) <0.02 <0.01 (9) <0.02 0.01 (119) <0.02 (119) <0.02
Benzo(ghi)Perylene T149 AR 0.01 mg/kg (119) <0.02 0.02 <0.01 (119) <0.02 <0.01 (9) <0.02 0.02 (119) <0.02 (119) <0.02
PAH(total) T149 AR 0.01 mg/kg 0.02 0.29 0.02 (119) <0.02 0.01 (9) <0.02 0.72 0.16 (119) <0.02
SAL Reference: 230065
Customer Reference: 92000006
Soil Analysed as Soil
Total and Speciated USEPA16 PAH
SAL Reference 230065 046 230065 047 230065 048 230065 049 230065 050 230065 051 230065 052 230065 053 230065 054
Customer Sample Reference 37 38 39 40 41 42 43 44 45
Date Sampled 03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
Determinand Method TestSample LOD Units
Naphthalene T149 AR 0.01 mg/kg <0.01 <0.01 (119) <0.02 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 <0.01
Acenaphthylene T149 AR 0.01 mg/kg <0.01 <0.01 (119) <0.02 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 <0.01
Acenaphthene T149 AR 0.01 mg/kg <0.01 <0.01 (119) <0.02 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 <0.01
Fluorene T149 AR 0.01 mg/kg <0.01 <0.01 (119) <0.02 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 <0.01
Phenanthrene T149 AR 0.01 mg/kg <0.01 0.01 (119) <0.02 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 0.01
Anthracene T149 AR 0.01 mg/kg <0.01 <0.01 (119) <0.02 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 <0.01
Fluoranthene T149 AR 0.01 mg/kg <0.01 0.01 (119) <0.02 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 <0.01
Pyrene T149 AR 0.01 mg/kg <0.01 <0.01 (119) <0.02 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 <0.01
Benzo(a)Anthracene T149 AR 0.01 mg/kg <0.01 <0.01 (119) <0.02 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 <0.01
Chrysene T149 AR 0.01 mg/kg <0.01 <0.01 (119) <0.02 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 <0.01
Benzo(b/k)Fluoranthene T149 AR 0.01 mg/kg <0.01 <0.01 (119) <0.02 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 <0.01
Benzo(a)Pyrene T149 AR 0.01 mg/kg <0.01 <0.01 (119) <0.02 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 <0.01
Indeno(123-cd)Pyrene T149 AR 0.01 mg/kg <0.01 <0.01 (119) <0.02 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 <0.01
Dibenzo(ah)Anthracene T149 AR 0.01 mg/kg <0.01 <0.01 (119) <0.02 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 <0.01
Benzo(ghi)Perylene T149 AR 0.01 mg/kg <0.01 <0.01 (119) <0.02 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 <0.01
PAH(total) T149 AR 0.01 mg/kg <0.01 0.02 (119) <0.02 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 0.01
This document has been printed from a digitally signed master copy
Produced by Scientific Analysis Laboratories, Hadfield House, Hadfield Street, Cornbrook, Manchester, M16 9FE Page 6 of 9
SAL Reference: 230065
Customer Reference: 92000006
Soil Analysed as Soil
Total and Speciated USEPA16 PAH
SAL Reference 230065 055 230065 056 230065 057 230065 058 230065 059 230065 060 230065 061 230065 062 230065 063
Customer Sample Reference 46 47 48 49 50 51 52 53 54
Date Sampled 03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
Determinand Method TestSample LOD Units
Naphthalene T149 AR 0.01 mg/kg <0.01 (119) <0.02 <0.01 (119) <0.02 0.01 <0.01 (119) <0.02 (119) <0.02 (119) <0.02
Acenaphthylene T149 AR 0.01 mg/kg <0.01 (119) <0.02 <0.01 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 (119) <0.02
Acenaphthene T149 AR 0.01 mg/kg <0.01 (119) <0.02 <0.01 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 (119) <0.02
Fluorene T149 AR 0.01 mg/kg <0.01 (119) <0.02 <0.01 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 (119) <0.02
Phenanthrene T149 AR 0.01 mg/kg <0.01 (119) <0.02 <0.01 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 (119) <0.02
Anthracene T149 AR 0.01 mg/kg <0.01 (119) <0.02 <0.01 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 (119) <0.02
Fluoranthene T149 AR 0.01 mg/kg <0.01 (119) <0.02 <0.01 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 (119) <0.02
Pyrene T149 AR 0.01 mg/kg <0.01 (119) <0.02 <0.01 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 (119) <0.02
Benzo(a)Anthracene T149 AR 0.01 mg/kg <0.01 (119) <0.02 <0.01 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 (119) <0.02
Chrysene T149 AR 0.01 mg/kg <0.01 (119) <0.02 <0.01 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 (119) <0.02
Benzo(b/k)Fluoranthene T149 AR 0.01 mg/kg <0.01 (119) <0.02 <0.01 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 (119) <0.02
Benzo(a)Pyrene T149 AR 0.01 mg/kg <0.01 (119) <0.02 <0.01 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 (119) <0.02
Indeno(123-cd)Pyrene T149 AR 0.01 mg/kg <0.01 (119) <0.02 <0.01 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 (119) <0.02
Dibenzo(ah)Anthracene T149 AR 0.01 mg/kg <0.01 (119) <0.02 <0.01 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 (119) <0.02
Benzo(ghi)Perylene T149 AR 0.01 mg/kg <0.01 (119) <0.02 <0.01 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 (119) <0.02
PAH(total) T149 AR 0.01 mg/kg <0.01 (119) <0.02 <0.01 (119) <0.02 0.01 <0.01 (119) <0.02 (119) <0.02 (119) <0.02
SAL Reference: 230065
Customer Reference: 92000006
Soil Analysed as Soil
Total and Speciated USEPA16 PAH
SAL Reference 230065 064 230065 065 230065 066 230065 067 230065 068 230065 069 230065 070 230065 071 230065 072
Customer Sample Reference 55 56 57 58 59 60 61 62 63
Date Sampled 03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
03-MAR-2011
Determinand Method TestSample LOD Units
Naphthalene T149 AR 0.01 mg/kg <0.01 (119) <0.02 (119) <0.02 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 (119) <0.02
Acenaphthylene T149 AR 0.01 mg/kg <0.01 (119) <0.02 (119) <0.02 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 (119) <0.02
Acenaphthene T149 AR 0.01 mg/kg <0.01 (119) <0.02 (119) <0.02 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 (119) <0.02
Fluorene T149 AR 0.01 mg/kg <0.01 (119) <0.02 (119) <0.02 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 (119) <0.02
Phenanthrene T149 AR 0.01 mg/kg <0.01 (119) <0.02 (119) <0.02 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 0.02
Anthracene T149 AR 0.01 mg/kg <0.01 (119) <0.02 (119) <0.02 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 (119) <0.02
Fluoranthene T149 AR 0.01 mg/kg <0.01 (119) <0.02 (119) <0.02 (119) <0.02 <0.01 <0.01 (119) <0.02 0.02 0.02
Pyrene T149 AR 0.01 mg/kg <0.01 (119) <0.02 (119) <0.02 (119) <0.02 <0.01 <0.01 (119) <0.02 0.02 0.02
Benzo(a)Anthracene T149 AR 0.01 mg/kg <0.01 (119) <0.02 (119) <0.02 (119) <0.02 <0.01 <0.01 (119) <0.02 0.02 (119) <0.02
Chrysene T149 AR 0.01 mg/kg <0.01 (119) <0.02 (119) <0.02 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 (119) <0.02
Benzo(b/k)Fluoranthene T149 AR 0.01 mg/kg <0.01 (119) <0.02 (119) <0.02 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 (119) <0.02
Benzo(a)Pyrene T149 AR 0.01 mg/kg <0.01 (119) <0.02 (119) <0.02 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 (119) <0.02
Indeno(123-cd)Pyrene T149 AR 0.01 mg/kg <0.01 (119) <0.02 (119) <0.02 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 (119) <0.02
Dibenzo(ah)Anthracene T149 AR 0.01 mg/kg <0.01 (119) <0.02 (119) <0.02 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 (119) <0.02
Benzo(ghi)Perylene T149 AR 0.01 mg/kg <0.01 (119) <0.02 (119) <0.02 (119) <0.02 <0.01 <0.01 (119) <0.02 (119) <0.02 (119) <0.02
PAH(total) T149 AR 0.01 mg/kg <0.01 (119) <0.02 (119) <0.02 (119) <0.02 <0.01 <0.01 (119) <0.02 0.06 0.06
This document has been printed from a digitally signed master copy
Produced by Scientific Analysis Laboratories, Hadfield House, Hadfield Street, Cornbrook, Manchester, M16 9FE Page 7 of 9
SAL Reference: 230065
Customer Reference: 92000006
Soil Analysed as Soil
Total and Speciated USEPA16 PAH
SAL Reference 230065 073 230065 074
Customer Sample Reference 64 65
Date Sampled 03-MAR-2011
03-MAR-2011
Determinand Method TestSample LOD Units
Naphthalene T149 AR 0.01 mg/kg (119) <0.02 <0.01
Acenaphthylene T149 AR 0.01 mg/kg (119) <0.02 <0.01
Acenaphthene T149 AR 0.01 mg/kg (119) <0.02 <0.01
Fluorene T149 AR 0.01 mg/kg (119) <0.02 <0.01
Phenanthrene T149 AR 0.01 mg/kg (119) <0.02 <0.01
Anthracene T149 AR 0.01 mg/kg (119) <0.02 <0.01
Fluoranthene T149 AR 0.01 mg/kg (119) <0.02 <0.01
Pyrene T149 AR 0.01 mg/kg (119) <0.02 <0.01
Benzo(a)Anthracene T149 AR 0.01 mg/kg (119) <0.02 <0.01
Chrysene T149 AR 0.01 mg/kg (119) <0.02 <0.01
Benzo(b/k)Fluoranthene T149 AR 0.01 mg/kg (119) <0.02 <0.01
Benzo(a)Pyrene T149 AR 0.01 mg/kg (119) <0.02 <0.01
Indeno(123-cd)Pyrene T149 AR 0.01 mg/kg (119) <0.02 <0.01
Dibenzo(ah)Anthracene T149 AR 0.01 mg/kg (119) <0.02 <0.01
Benzo(ghi)Perylene T149 AR 0.01 mg/kg (119) <0.02 <0.01
PAH(total) T149 AR 0.01 mg/kg (119) <0.02 <0.01
SAL Reference: 230065
Customer Reference: 92000006
Water Analysed as Water
TPH
SAL Reference 230065 075
Customer Sample Reference ANAEROBIC DIGESTATE LIQUOR
Date Sampled 03-MAR-2011
Determinand Method TestSample LOD Units
Total Petroleum Hydrocarbons T81 AR 0.01 mg/l 270
TPH (C35-C40) T81 AR 0.01 mg/l 21.00
TPH C10-C40 (sum) T85 AR 0.01 mg/l 290
SAL Reference: 230065
Customer Reference: 92000006
Water Analysed as Water
Total and Speciated USEPA16 PAH
SAL Reference 230065 075
Customer Sample Reference ANAEROBIC DIGESTATE LIQUOR
Date Sampled 03-MAR-2011
Determinand Method TestSample LOD Units
Naphthalene T149 AR 0.01 µg/l 6.0
Acenaphthylene T149 AR 0.01 µg/l 1.7
Acenaphthene T149 AR 0.01 µg/l (9) <1.0
Fluorene T149 AR 0.01 µg/l (9) <1.0
Phenanthrene T149 AR 0.01 µg/l 3.2
Anthracene T149 AR 0.01 µg/l (9) <1.0
Fluoranthene T149 AR 0.01 µg/l (9) <1.0
Pyrene T149 AR 0.01 µg/l (9) <1.0
Benzo(a)Anthracene T149 AR 0.01 µg/l (9) <1.0
Chrysene T149 AR 0.01 µg/l (9) <1.0
Benzo(b/k)Fluoranthene T149 AR 0.01 µg/l (9) <1.0
Benzo(a)Pyrene T149 AR 0.01 µg/l (9) <1.0
Indeno(123-cd)Pyrene T149 AR 0.01 µg/l (9) <1.0
Dibenzo(ah)Anthracene T149 AR 0.01 µg/l (9) <1.0
Benzo(ghi)Perylene T149 AR 0.01 µg/l (9) <1.0
PAH(total) T149 AR 0.01 µg/l 11
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Index to symbols used in 230065-1
Method Index
Accreditation Summary
Value Description
AR As Received
100 LOD determined by sample aliquot used for analysis
119 LOD raised due to limited sample
9 LOD raised due to dilution of sample
U Analysis is UKAS accredited
N Analysis is not UKAS accredited
Value Description
T81 GC/FID (LV)
T8 GC/FID
T85 Calc
T149 GC/MS (SIR)
Determinand Method TestSample LOD Units Symbol SAL References
Total Petroleum Hydrocarbons T81 AR 0.01 mg/l U 075
TPH (C35-C40) T81 AR 0.01 mg/l N 075
TPH C10-C40 (sum) T85 AR 0.01 mg/l N 075
Total Petroleum Hydrocarbons T8 AR 1 mg/kg U 001-074
TPH (C35-C40) T8 AR 1 mg/kg N 001-074
TPH C10-C40 (sum) T85 AR 1 mg/kg N 001-074
Naphthalene T149 AR 0.01 mg/kg U 001-074
Acenaphthylene T149 AR 0.01 mg/kg U 001-074
Acenaphthene T149 AR 0.01 mg/kg U 001-074
Fluorene T149 AR 0.01 mg/kg U 001-074
Phenanthrene T149 AR 0.01 mg/kg U 001-074
Anthracene T149 AR 0.01 mg/kg U 001-074
Fluoranthene T149 AR 0.01 mg/kg U 001-074
Pyrene T149 AR 0.01 mg/kg U 001-074
Benzo(a)Anthracene T149 AR 0.01 mg/kg U 001-074
Chrysene T149 AR 0.01 mg/kg U 001-074
Benzo(b/k)Fluoranthene T149 AR 0.01 mg/kg U 001-074
Benzo(a)Pyrene T149 AR 0.01 mg/kg U 001-074
Indeno(123-cd)Pyrene T149 AR 0.01 mg/kg U 001-074
Dibenzo(ah)Anthracene T149 AR 0.01 mg/kg U 001-074
Benzo(ghi)Perylene T149 AR 0.01 mg/kg U 001-074
PAH(total) T149 AR 0.01 mg/kg U 001-074
Naphthalene T149 AR 0.01 µg/l U 075
Acenaphthylene T149 AR 0.01 µg/l U 075
Acenaphthene T149 AR 0.01 µg/l U 075
Fluorene T149 AR 0.01 µg/l U 075
Phenanthrene T149 AR 0.01 µg/l U 075
Anthracene T149 AR 0.01 µg/l U 075
Fluoranthene T149 AR 0.01 µg/l U 075
Pyrene T149 AR 0.01 µg/l U 075
Benzo(a)Anthracene T149 AR 0.01 µg/l U 075
Chrysene T149 AR 0.01 µg/l U 075
Benzo(b/k)Fluoranthene T149 AR 0.01 µg/l U 075
Benzo(a)Pyrene T149 AR 0.01 µg/l U 075
Indeno(123-cd)Pyrene T149 AR 0.01 µg/l U 075
Dibenzo(ah)Anthracene T149 AR 0.01 µg/l U 075
Benzo(ghi)Perylene T149 AR 0.01 µg/l U 075
PAH(total) T149 AR 0.01 µg/l U 075
This document has been printed from a digitally signed master copy
Produced by Scientific Analysis Laboratories, Hadfield House, Hadfield Street, Cornbrook, Manchester, M16 9FE Page 9 of 9
Anaerobic Digest Experiment
pH H2O CondLims ID No Details Details Site Type Date - μs/cm
1110300554 1 - A1 Top Soil Soil 26/11/2010 5.27 1091110300555 2 - B1 Top Soil Soil 26/11/2010 5.19 1121110300556 3 - C1 Top Soil Soil 26/11/2010 5.63 1161110300557 4 - A2 Anaerobic Digestate Cake Soil 26/11/2010 7.50 94351110300558 5 - B2 Anaerobic Digestate Cake Soil 26/11/2010 7.49 129451110300559 6 - C2 Anaerobic Digestate Cake Soil 26/11/2010 7.53 90001110300560 7 - A3 PAS Green Compost Soil 26/11/2010 8.02 145801110300561 8 - B3 PAS Green Compost Soil 26/11/2010 7.91 117451110300562 9 - C3 PAS Green Compost Soil 26/11/2010 7.83 136201110300563 10 - - Liquor Digestate Soil 26/11/2010 7.54 366001110300564 1 Pure Treat2 1B Soil 01/02/2011 6.03 2781110300565 2 Pure Treat2 1B Soil 01/02/2011 5.79 1241110300566 3 Planted Treat2 1B Soil 01/02/2011 7.79 23611110300567 4 Planted Treat2 1B Soil 01/02/2011 6.28 3111110300568 5 Pure Treat2 11B Soil 01/02/2011 5.87 2421110300569 6 Pure Treat2 11B Soil 01/02/2011 6.00 2721110300570 7 Planted Treat2 11B Soil 01/02/2011 6.52 6201110300571 8 Planted Treat2 11B Soil 01/02/2011 6.16 4141110300572 9 Pure Treat2 21B Soil 01/02/2011 5.66 1361110300573 10 Planted Treat2 21B Soil 01/02/2011 6.70 7191110300574 11 Pure Treat3 5C Soil 01/02/2011 7.95 123751110300575 12 Pure Treat3 5C Soil 01/02/2011 7.91 99301110300576 13 Planted Treat3 5C Soil 01/02/2011 6.89 8671110300577 14 Planted Treat3 5C Soil 01/02/2011 7.36 16041110300578 15 Pure Treat3 14C Soil 01/02/2011 7.93 114301110300579 16 Pure Treat3 14C Soil 01/02/2011 7.87 126601110300580 17 Planted Treat3 14C Soil 01/02/2011 7.20 14631110300581 18 Planted Treat3 14C Soil 01/02/2011 6.58 5631110300582 19 Pure Treat3 20C Soil 01/02/2011 7.92 98851110300583 20 Planted Treat3 20C Soil 01/02/2011 6.97 14281110300584 21 Pure Treat4 3D Soil 01/02/2011 7.84 100951110300585 22 Pure Treat4 3D Soil 01/02/2011 7.84 111751110300586 23 Planted Treat4 3D Soil 01/02/2011 7.37 11191110300587 24 Planted Treat4 3D Soil 01/02/2011 8.04 30231110300588 25 Pure Treat4 9D Soil 01/02/2011 7.89 128401110300589 26 Pure Treat4 9D Soil 01/02/2011 7.94 129901110300590 27 Planted Treat4 9D Soil 01/02/2011 7.61 28261110300591 28 Planted Treat4 9D Soil 01/02/2011 7.94 47401110300592 29 Pure Treat4 15D Soil 01/02/2011 7.75 131101110300593 30 Planted Treat4 15D Soil 01/02/2011 7.41 19881110300594 31 Pure Treat5 7E Soil 01/02/2011 6.12 2351110300595 32 Pure Treat5 7E Soil 01/02/2011 6.13 4581110300596 33 Planted Treat5 7E Soil 01/02/2011 6.72 10201110300597 34 Planted Treat5 7E Soil 01/02/2011 6.35 5541110300598 35 Pure Treat5 12E Soil 01/02/2011 6.44 2431110300599 36 Pure Treat5 12E Soil 01/02/2011 6.30 2311110300600 37 Planted Treat5 12E Soil 01/02/2011 6.18 2641110300601 38 Planted Treat5 12E Soil 01/02/2011 7.20 23431110300602 39 Pure Treat5 19E Soil 01/02/2011 6.21 3461110300603 40 Planted Treat5 19E Soil 01/02/2011 6.17 275
1110300604 41 Pure Treat6 6F Soil 01/02/2011 6.16 1641110300605 42 Pure Treat6 6F Soil 01/02/2011 6.29 1431110300606 43 Planted Treat6 6F Soil 01/02/2011 6.38 4111110300607 44 Planted Treat6 6F Soil 01/02/2011 5.66 1721110300608 45 Pure Treat6 13F Soil 01/02/2011 5.71 871110300609 46 Pure Treat6 13F Soil 01/02/2011 5.73 941110300610 47 Planted Treat6 13F Soil 01/02/2011 6.86 7011110300611 48 Planted Treat6 13F Soil 01/02/2011 6.77 6081110300612 49 Pure Treat6 18F Soil 01/02/2011 5.48 851110300613 50 Planted Treat6 18F Soil 01/02/2011 6.74 10021110300614 51 Pure Treat7 2G Soil 01/02/2011 5.92 1371110300615 52 Pure Treat7 2G Soil 01/02/2011 5.87 1331110300616 53 Planted Treat7 2G Soil 01/02/2011 6.25 4141110300617 54 Planted Treat7 2G Soil 01/02/2011 5.75 1821110300618 55 Pure Treat7 10G Soil 01/02/2011 5.97 1591110300619 56 Pure Treat7 10G Soil 01/02/2011 5.94 1381110300620 57 Planted Treat7 10G Soil 01/02/2011 6.86 10801110300621 58 Planted Treat7 10G Soil 01/02/2011 6.75 6781110300622 59 Pure Treat7 16G Soil 01/02/2011 5.62 981110300623 60 Planted Treat7 16G Soil 01/02/2011 6.00 2961110300624 61 Alder Treat1 4A Soil 01/02/2011 6.46 2161110300625 62 Alder Treat1 4A Soil 01/02/2011 6.34 1851110300626 63 Alder Treat1 8A Soil 01/02/2011 6.15 1441110300627 64 Alder Treat1 8A Soil 01/02/2011 6.08 1501110300628 65 Alder Treat1 17A Soil 01/02/2011 5.71 110
pH H2O CondLims ID No Details Details Site Type Date - μs/cm
1110300563 10 - - Liquor Digestate Soil 26/11/2010 7.54 36600
TIC = Total Inorganic CarbonTOC = Total Organic CarbonO.M. = Organic Matter Total nut
Total N Total C TIC TOC C/N ratio O.M. N-NH4 N-NO3 K Ca Mg Na% % % % - % mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg
0.12 1.83 0.00 1.83 15.00 3.15 4.2 1.35 3436 1339 1707 1260.12 1.87 0.00 1.87 15.46 3.23 6.5 1.59 2530 1064 1562 890.13 1.88 0.00 1.88 14.14 3.24 5.3 1.44 3385 1529 1770 1293.45 46.81 0.07 46.74 13.57 80.58 5740.2 19.13 1984 14682 1096 27064.16 45.27 0.07 45.21 10.87 77.94 14365.0 34.20 2921 20132 1637 41283.14 47.15 0.07 47.08 15.02 81.17 5474.3 30.83 1796 16081 1049 26681.89 21.08 0.75 20.34 10.75 35.06 920.6 8.30 9602 52639 4065 23341.91 21.75 0.72 21.03 11.01 36.25 975.6 8.56 9327 61850 4235 24481.84 20.00 0.77 19.23 10.46 33.16 705.2 6.24 9895 56505 3895 2393
15.73 61.05 0.00 61.05 3.88 105.25 208651.6 358.55 34431 32454 5264 570930.12 1.54 0.00 1.54 13.40 2.66 0.0 4.76 2727 1249 1496 980.11 1.67 0.00 1.67 15.15 2.87 0.0 3.69 3480 1442 2014 1120.41 5.12 0.25 4.87 11.93 8.39 326.3 2.70 4176 10522 2618 3130.12 1.66 0.00 1.66 13.61 2.86 48.5 4.06 3765 1706 1981 1460.11 1.59 0.00 1.59 14.06 2.74 22.4 2.98 3817 1454 2227 1400.08 1.12 0.00 1.12 14.29 1.92 68.2 5.68 3416 1150 1913 1230.14 1.83 0.00 1.83 12.96 3.15 283.8 6.08 3838 2190 2637 1450.11 1.53 0.00 1.53 13.42 2.64 101.2 3.85 3851 2088 2092 1430.15 1.85 0.00 1.85 12.66 3.19 0.0 3.48 2963 1676 1682 1220.20 2.37 0.00 2.37 11.80 4.09 109.3 2.73 3149 3842 1680 1511.60 18.88 0.90 17.98 11.22 30.99 2681.6 11.72 8742 57077 4000 20881.60 21.32 0.94 20.38 12.71 35.14 2065.9 10.67 7192 59735 4050 18280.16 2.04 0.00 2.04 12.82 3.51 119.0 1.64 3956 3416 2263 1850.20 2.56 0.04 2.51 12.32 4.33 570.2 3.51 4512 4009 2356 2411.54 17.27 0.80 16.48 10.73 28.40 2082.3 9.00 8619 52387 4185 20671.58 18.37 0.84 17.53 11.08 30.23 3135.2 14.61 8882 53204 4087 22290.21 2.46 0.05 2.41 11.60 4.16 218.0 2.13 3342 4488 1713 2450.16 1.93 0.00 1.93 12.08 3.33 46.8 2.34 3466 2539 1783 1781.56 18.43 0.88 17.55 11.23 30.26 2546.9 13.82 9117 56303 4344 22120.24 3.06 0.00 3.06 12.65 5.28 92.0 4.79 3179 6458 1552 2441.69 19.73 0.77 18.96 11.19 32.69 5144.2 11.70 8551 54075 4222 23771.70 20.29 0.80 19.49 11.49 33.61 6074.6 22.58 8419 56136 4202 24740.17 2.08 0.03 2.04 11.94 3.52 240.9 2.70 3520 3112 2302 1880.31 3.70 0.14 3.56 11.48 6.14 716.7 4.70 4403 7100 2566 3371.67 18.61 0.69 17.92 10.76 30.89 5848.5 11.03 8239 54107 4458 24031.61 18.73 0.77 17.96 11.13 30.96 5043.8 13.54 7835 53138 3557 22690.27 3.26 0.12 3.14 11.83 5.41 670.5 2.35 3656 6130 2366 2900.36 4.26 0.17 4.09 11.31 7.06 753.4 2.76 4234 8003 2445 4291.66 19.29 0.80 18.49 11.15 31.88 4591.9 10.44 8682 58139 4291 25150.24 2.87 0.09 2.77 11.80 4.78 224.4 2.59 3109 4241 1723 2400.12 1.68 0.00 1.68 14.11 2.89 3.4 1.54 2621 2103 1763 1140.12 1.72 0.00 1.72 13.87 2.97 1.0 2.03 2572 1894 1762 1110.15 1.88 0.00 1.88 12.82 3.25 173.1 2.53 2735 2999 1881 1530.14 1.80 0.00 1.80 13.32 3.10 166.4 2.80 2533 1776 1756 1070.11 1.54 0.00 1.54 13.96 2.65 8.3 2.87 2966 1616 1985 1050.11 1.55 0.00 1.55 14.65 2.68 2.0 2.60 3483 1661 2125 1200.12 1.67 0.00 1.67 13.72 2.89 15.0 2.40 3205 1913 1893 1230.23 3.16 0.10 3.06 13.38 5.28 309.2 2.77 2902 10578 1900 2740.12 1.77 0.00 1.77 14.26 3.05 13.4 1.95 3270 1706 1925 1300.11 1.70 0.00 1.70 15.14 2.92 0.5 2.78 2379 1339 1284 114
0.12 1.63 0.00 1.63 13.28 2.82 0.4 2.36 3581 1828 1975 1270.12 1.57 0.00 1.57 13.05 2.70 0.3 3.70 4267 2226 2135 1550.13 1.61 0.00 1.61 12.77 2.77 259.5 2.42 3351 1442 1736 1510.11 1.65 0.00 1.65 14.58 2.84 17.3 3.25 4144 1386 1985 1670.10 1.37 0.00 1.37 13.95 2.36 0.2 1.55 2880 1453 1619 1250.11 1.46 0.00 1.46 13.75 2.51 0.3 2.32 2791 1177 1434 1080.15 1.86 0.00 1.86 12.81 3.20 192.7 1.60 2971 2648 1480 1750.13 1.49 0.00 1.49 11.61 2.56 425.0 3.08 2939 1761 1558 1760.10 1.40 0.00 1.40 13.72 2.41 2.1 2.32 3081 1213 1468 1380.14 1.70 0.00 1.70 11.78 2.92 246.4 1.74 3119 2117 1592 2060.12 1.71 0.00 1.71 14.12 2.95 4.1 1.77 4265 1811 2376 1370.11 1.62 0.00 1.62 14.29 2.78 24.6 6.87 3440 1679 2243 1110.13 1.67 0.00 1.67 13.07 2.88 53.3 3.55 3822 2035 2309 1530.13 1.79 0.00 1.79 14.13 3.09 15.0 5.89 3462 1693 2383 1190.13 1.70 0.00 1.70 13.59 2.93 0.3 4.05 3095 1736 2111 1000.12 1.67 0.00 1.67 13.70 2.88 1.1 2.37 2984 1751 2031 1000.17 2.08 0.00 2.08 12.40 3.59 437.7 2.24 3464 2317 2288 1750.16 1.96 0.00 1.96 12.58 3.38 197.9 1.72 3417 2355 1977 1610.13 1.61 0.00 1.61 12.80 2.78 1.2 3.17 3310 1591 1753 1300.15 1.85 0.00 1.85 12.76 3.19 85.4 2.83 3048 1607 1651 1320.07 0.95 0.00 0.95 12.86 1.64 2.7 1.64 4024 1351 2220 1100.10 1.34 0.00 1.34 13.62 2.30 1.8 1.78 3504 1897 2512 1170.11 1.49 0.00 1.49 13.55 2.57 1.1 2.98 3058 1530 2100 1060.12 1.65 0.00 1.65 14.07 2.84 0.4 1.29 3326 1822 2263 1100.10 1.42 0.00 1.42 13.75 2.44 0.3 2.12 3060 1311 1657 114
Based as a liquid Based as a liquid
Total N Total C TIC TOC C/N ratio O.M. N-NH4 N-NO3 K Ca Mg Na% % % % - % mg/l mg/l mg/l mg/l mg/l mg/l
0.276 1.071 0.00 1.07 3.89 1.85 2774 4.77 604 569 92 1002
trients contents including PTEs
Al Fe Mn P S Ba Cd Co Cr Cu Ni Pb Srmg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg
13933 12730 454 692 233 196 0.24 4.7 22 9 7 33 1311330 12438 423 706 248 207 0.23 4.4 17 10 7 32 1114347 13802 480 722 247 183 0.25 5.0 20 11 7 37 153401 21586 77 6390 6855 43 0.28 2.0 115 27 8 13 472559 39184 114 13267 10373 56 0.52 3.4 145 51 12 23 832723 22461 68 7050 7598 25 0.50 1.8 117 30 6 14 50
16495 17680 376 2905 2377 171 0.48 7.5 30 81 20 113 11315537 18730 371 2817 2389 150 0.45 7.9 27 79 20 123 11916290 16443 356 2894 2417 169 0.45 7.0 28 85 20 117 1103883 74547 232 27321 16683 77 0.67 9.2 368 101 48 52 157
10937 10335 390 487 152 81 0.29 4.2 17 18 7 18 1114225 13695 481 664 194 111 0.38 5.3 22 14 10 24 1515166 14699 473 1081 527 114 0.58 5.5 23 21 11 46 3314450 16239 513 667 207 106 0.40 5.5 22 10 10 23 1615251 15436 418 551 204 170 0.34 5.3 22 11 9 23 1513462 13703 338 455 216 323 0.29 5.3 24 13 8 19 1215571 15979 457 625 257 157 0.36 6.0 24 13 11 26 1515066 14288 462 619 246 173 0.36 5.3 21 10 9 31 1614102 13034 450 629 257 118 0.35 4.7 17 11 8 31 1513628 12661 434 676 336 119 0.34 4.7 18 12 8 35 1918294 20476 406 2846 2248 161 0.61 8.0 33 67 21 97 11216097 19383 391 2811 2164 163 0.65 8.0 30 68 21 97 11515775 14641 460 568 318 144 0.36 5.4 22 11 10 23 2116479 14983 452 592 328 145 0.34 5.6 23 12 10 24 2216740 21068 386 2717 2137 175 0.63 8.1 29 70 19 94 10317635 21979 379 2762 2226 185 0.64 8.6 31 71 21 99 10412966 12017 430 679 335 101 0.31 4.4 17 11 8 27 1914669 13054 490 664 268 112 0.35 4.8 18 10 8 28 1717805 19508 413 2789 2121 152 0.61 8.4 34 68 21 98 10413021 11046 339 760 396 101 0.32 3.9 16 12 7 29 2214809 18539 423 2769 2185 150 1.04 7.0 29 61 18 104 9814073 21903 416 2784 2120 140 0.63 7.8 34 65 19 94 10313674 15606 399 513 293 133 0.33 5.6 22 11 10 21 1815113 16177 380 693 447 174 0.37 5.7 24 18 11 30 2715071 21242 431 2980 2258 141 0.62 7.6 32 68 19 94 9914310 20752 364 2779 2107 173 0.67 8.0 29 68 20 90 10313614 14436 396 652 373 134 0.36 5.4 21 14 10 25 2213949 15816 460 776 802 190 0.38 5.6 25 18 10 30 2715439 22020 387 2788 2270 144 0.63 8.0 28 72 21 92 13112769 12675 428 651 335 98 0.33 4.5 17 12 8 33 1911707 13775 464 653 222 139 0.34 4.6 19 11 8 25 1511576 12964 460 642 321 219 0.33 4.6 19 13 8 25 1311507 13397 451 655 262 136 0.35 4.8 19 12 8 32 1511068 12716 466 626 231 141 0.38 4.5 19 10 8 33 1312018 13336 474 630 210 170 0.36 4.8 20 10 9 34 1513607 15108 462 613 189 140 0.37 5.0 21 11 8 29 1513214 13329 448 774 224 147 0.36 4.7 20 10 8 34 1611227 8338 275 774 386 83 0.27 3.2 14 13 6 37 2213592 15550 472 678 228 152 0.37 4.9 20 11 8 34 1410993 8888 299 635 188 77 0.26 3.4 15 11 6 30 12
14605 14559 519 654 211 116 0.37 5.2 20 10 9 34 1717060 15363 646 638 224 134 0.38 5.4 22 10 9 27 1913339 12610 481 663 197 117 0.33 4.7 20 12 8 20 1615889 14566 514 689 202 137 0.36 4.5 25 16 9 21 1612950 11978 490 648 185 95 0.31 4.5 16 7 7 30 1412733 11142 473 642 190 97 0.30 4.3 15 7 7 32 1312672 11000 447 671 248 95 0.29 4.1 16 10 7 30 1612981 11709 472 679 206 99 0.29 4.5 16 8 7 29 1513241 10911 459 638 187 100 0.29 3.6 15 7 6 26 1412934 10876 393 683 228 102 0.28 4.1 16 8 7 26 1517077 15679 481 504 229 176 0.32 5.9 23 9 10 19 1914547 14735 448 478 217 142 0.30 5.6 22 9 10 21 1615923 15192 476 505 232 154 0.30 5.7 21 9 10 17 2214957 15217 454 496 236 157 0.32 5.7 23 10 10 18 1713421 14358 433 541 228 157 0.33 5.0 23 10 9 24 1613427 13260 429 527 232 148 0.31 5.0 21 9 9 22 1614308 14153 410 610 289 145 0.32 5.5 22 11 10 23 1814124 13141 410 590 281 138 0.32 5.0 21 11 9 24 1915084 12784 497 600 238 116 0.32 4.8 19 8 8 32 1813816 11910 442 603 242 105 0.30 4.5 17 8 8 29 1913566 13474 337 380 143 118 0.25 4.8 19 11 8 14 1514899 14731 426 461 213 185 0.30 5.9 22 11 10 27 2013155 12676 399 439 196 130 0.28 5.0 20 9 9 17 1613976 12900 329 549 239 209 0.33 5.3 20 9 9 21 1913116 11319 437 553 187 100 0.29 4.5 19 10 7 23 15
Based as a liquid
Al Fe Mn P S Ba Cd Co Cr Cu Ni Pb Srmg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l
68 1308 4 479 293 1 0.01 0.2 6 2 1 1 3
Dry basis Wet basisField Field Visible
Zn As B Hg Zr Mo Sb Se Sn Moisture Moisture contaminantsmg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg % % -
36 5.8 6 0.01 6.2 2.1 1.2 0.8 1.2 22.01 18.04 None37 4.6 5 0.00 0.6 2.2 1.1 0.9 1.0 22.94 18.66 None37 6.9 7 0.01 4.6 1.9 1.2 0.9 1.3 21.47 17.67 None
198 0.0 21 0.02 3.4 5.4 3.1 1.0 3.4 185.02 64.91 None330 0.0 15 0.03 4.1 7.6 4.7 1.7 5.2 349.33 77.74 None225 0.0 17 0.02 3.5 5.8 3.5 0.9 3.7 175.89 63.75 None240 8.0 14 0.11 25.2 1.7 3.3 1.1 15.4 97.71 49.42 None224 7.4 13 0.08 24.7 1.8 3.6 1.1 6.6 97.22 49.30 None236 7.9 15 0.10 25.4 1.7 3.4 1.0 5.0 76.53 43.35 None616 0.0 54 0.00 6.5 25.2 8.7 3.7 9.3 5600.00 98.25 None35 6.4 6 0.05 3.7 1.3 0.8 0.5 1.1 25.13 20.08 None42 7.4 7 0.07 2.3 1.7 1.0 0.8 1.2 19.94 16.62 None79 4.5 8 0.08 8.3 1.4 1.4 0.7 2.4 32.60 24.59 None43 4.5 7 0.06 4.7 1.6 1.1 0.7 1.3 24.24 19.51 None51 5.0 6 0.05 5.0 1.7 1.1 0.7 1.1 29.00 22.48 None42 4.2 5 0.05 4.7 1.5 1.0 0.5 1.0 14.31 12.52 None58 5.3 6 0.06 4.5 1.7 1.3 0.7 1.3 13.63 12.00 None46 4.9 7 0.06 5.0 1.8 1.1 0.7 1.2 18.72 15.77 None33 4.3 7 0.06 2.7 2.4 1.0 0.8 1.3 27.64 21.66 None41 4.3 7 0.06 5.0 2.3 1.0 0.9 1.5 25.64 20.41 None
222 8.0 14 0.17 4.3 1.6 3.4 0.9 6.2 93.09 48.21 None226 7.9 13 0.17 25.6 1.7 5.2 1.0 6.4 89.52 47.24 None49 4.8 8 0.06 5.9 1.7 1.2 0.8 1.4 31.29 23.83 None49 4.6 8 0.06 7.1 1.5 1.2 0.8 1.4 26.96 21.24 None
231 8.7 13 0.16 24.1 1.6 3.4 1.0 6.1 99.02 49.75 None223 9.0 14 0.17 24.2 1.7 3.8 1.0 7.4 90.10 47.40 None47 3.7 6 0.05 5.6 1.7 1.0 0.7 1.3 30.79 23.54 None44 3.6 7 0.05 5.2 1.9 1.0 0.8 1.5 26.43 20.91 None
229 8.4 15 0.17 25.3 1.7 3.8 1.1 6.7 82.00 45.05 None42 3.9 6 0.07 6.5 1.8 0.9 0.8 2.3 23.29 18.89 None
201 7.2 13 0.15 20.2 1.7 4.0 0.9 5.2 127.73 56.09 None216 7.7 13 0.15 19.4 1.9 3.2 0.9 5.6 134.80 57.41 None51 5.6 7 0.06 1.5 1.4 1.2 0.7 1.1 26.93 21.21 None64 6.7 8 0.07 3.1 1.4 1.4 0.8 1.7 33.85 25.29 None
222 7.5 14 0.17 21.5 2.0 3.2 1.0 5.6 125.81 55.71 None222 8.5 13 0.16 18.9 1.9 3.6 0.9 5.9 115.56 53.61 None56 5.1 7 0.07 1.2 1.6 1.2 0.8 1.3 27.58 21.62 None64 5.6 8 0.07 2.6 1.6 1.4 0.9 1.7 33.87 25.30 None
214 8.7 15 0.19 22.0 2.1 3.3 0.9 6.3 125.27 55.61 None43 4.0 7 0.05 0.8 1.9 1.0 0.9 1.3 33.11 24.88 None38 4.7 5 0.06 0.5 2.0 0.9 0.8 1.2 22.24 18.19 None39 4.4 5 0.05 0.6 2.0 1.0 0.7 1.6 21.49 17.69 None41 5.5 5 0.05 0.6 1.7 1.0 0.8 1.2 20.67 17.13 None47 5.4 5 0.05 0.5 1.8 0.9 0.7 1.1 20.28 16.86 None37 5.6 5 0.06 0.6 1.7 1.0 0.7 1.2 20.40 16.94 None40 5.2 6 0.05 4.6 1.9 1.0 0.7 1.2 18.76 15.80 None36 5.6 6 0.06 4.2 1.8 1.0 0.7 1.1 22.65 18.47 None36 2.9 5 0.05 5.5 1.2 0.8 0.6 1.9 20.76 17.19 None42 6.3 6 0.06 3.9 1.9 1.0 0.7 1.4 21.64 17.79 None23 2.7 5 0.04 4.9 1.2 0.7 0.7 2.8 21.73 17.85 None
37 4.2 7 0.07 5.2 1.7 1.0 0.9 1.4 21.36 17.60 None39 4.4 8 0.05 7.6 1.9 1.1 1.0 2.1 22.97 18.68 None34 6.3 6 0.05 4.8 1.7 1.0 0.6 1.2 21.65 17.79 None38 12.2 7 0.06 6.2 1.5 1.1 0.8 1.3 20.81 17.23 None30 3.3 6 0.04 4.2 1.6 0.9 0.8 1.2 23.09 18.76 None30 3.3 6 0.04 3.2 1.6 0.8 0.8 1.1 20.80 17.22 None35 3.0 6 0.04 4.8 1.5 0.8 0.8 1.3 23.47 19.01 None33 3.0 6 0.05 4.7 1.5 0.9 0.8 1.2 28.47 22.16 None29 3.0 6 0.04 4.3 1.3 0.8 0.7 1.1 21.57 17.74 None31 2.8 6 0.05 7.0 1.4 0.9 0.8 1.8 22.56 18.41 None57 5.2 8 0.06 6.6 1.5 1.2 0.9 1.3 23.40 18.97 None38 5.0 7 0.05 1.7 1.5 1.1 0.7 1.1 18.56 15.65 None53 4.7 8 0.05 2.7 1.4 1.1 0.8 1.1 24.86 19.91 None43 5.0 7 0.05 1.5 1.5 1.1 0.8 1.3 27.16 21.36 None39 5.3 6 0.06 1.5 1.7 1.0 0.7 1.2 21.59 17.75 None38 5.6 6 0.05 1.5 1.9 1.0 0.7 1.0 26.29 20.82 None42 5.2 6 0.06 2.6 1.7 1.1 0.8 1.2 32.54 24.55 None41 5.7 7 0.06 3.5 1.8 1.1 0.8 1.3 28.15 21.96 None35 4.0 7 0.05 5.4 2.1 1.0 0.8 1.2 28.92 22.43 None32 3.8 6 0.06 2.9 2.0 0.9 0.8 1.2 25.02 20.01 None46 3.3 5 0.04 3.7 1.0 1.0 0.5 1.2 26.20 20.76 None41 5.0 6 0.06 2.0 1.3 1.1 0.7 1.3 30.24 23.22 None39 4.2 6 0.04 3.1 1.4 1.0 0.6 1.1 31.46 23.93 None43 5.2 7 0.06 2.3 1.6 1.0 0.7 1.2 27.41 21.51 None38 3.5 6 0.06 4.4 1.6 0.9 0.7 1.6 26.16 20.73 None
Zn As B Hg Zr Mo Sb Se Snmg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l mg/l
11 0.0 1 0.00 0.1 0.4 0.2 0.1 0.2
Anaerobic Digestate and Compost Trials in Commercial Forestry 27
Appendix 7 Preliminary Results Baseline chemical composition of unamended soil, compost, AD products and treatments
Use
of an
aero
bic
dig
esta
tes
in
fore
stry
– p
relim
inar
y re
sults
Tab
le 1
: Bas
elin
e ch
emic
al co
mposi
tion o
f unam
ended
soil,
com
post
, AD
pro
duct
s an
d t
reat
men
t plo
ts (
mea
n o
f duplic
ate
sam
ple
s unle
ss indic
ated
).
Trea
tmen
tpH
(in
wat
er)
Con
dTo
tal N
Tota
l CTI
CTO
CC
/N ra
tioO
.M.
N-N
H4
N-N
O3
KC
aM
gN
aAl
FeM
nP
S-
μs/c
m%
%%
%-
%m
g/kg
mg/
kgm
g/kg
mg/
kgm
g/kg
mg/
kgm
g/kg
mg/
kgm
g/kg
mg/
kgm
g/kg
Top
Soi
l5.
3611
20.
11.
90.
01.
914
.93.
25.
31.
531
1713
1116
8011
513
203
1299
045
370
624
2A
naer
obic
Dig
esta
te C
ake
7.51
1046
03.
646
.40.
146
.313
.279
.985
26.5
28.1
2234
1696
512
6031
6728
9427
743
8689
0282
75P
AS G
reen
Com
post
7.92
1331
51.
920
.90.
720
.210
.734
.886
7.1
7.7
9608
5699
840
6523
9216
107
1761
736
828
7223
94Li
quor
Dig
esta
te7.
5436
600
15.7
61.0
0.0
61.0
3.9
105.
220
8651
.635
8.5
3443
132
454
5264
5709
338
8374
547
232
2732
116
683
Trea
t1Al
der
4A6.
4020
10.
11.
10.
01.
113
.22.
02.
31.
737
6416
2423
6611
414
232
1410
238
242
117
8Al
der
8A6.
1214
70.
11.
60.
01.
613
.82.
70.
72.
131
9216
7621
8210
813
565
1278
836
449
421
7Al
der
17A
*5.
7111
00.
11.
40.
01.
413
.72.
40.
32.
130
6013
1116
5711
413
116
1131
943
755
318
7Tr
eat2
Pure
1B5.
9120
10.
11.
60.
01.
614
.32.
80.
04.
231
0413
4517
5510
512
581
1201
543
657
517
3Pl
ante
d1B
7.04
1336
0.3
3.4
0.1
3.3
12.8
5.6
187.
43.
439
7061
1423
0022
914
808
1546
949
387
436
7Pu
re11
B5.
9425
70.
11.
40.
01.
414
.22.
345
.34.
336
1613
0220
7013
114
357
1456
937
850
321
0Pl
ante
d11
B6.
3451
70.
11.
70.
01.
713
.22.
919
2.5
5.0
3844
2139
2364
144
1531
815
133
459
622
251
Pure
21B
*5.
6613
60.
11.
80.
01.
812
.73.
20.
03.
529
6316
7616
8212
214
102
1303
445
062
925
7Pl
ante
d21
B*
6.70
719
0.2
2.4
0.0
2.4
11.8
4.1
109.
32.
731
4938
4216
8015
113
628
1266
143
467
633
6Tr
eat3
Pure
5C7.
9311
153
1.6
20.1
0.9
19.2
12.0
33.1
2373
.711
.279
6758
406
4025
1958
1719
619
930
398
2829
2206
Plan
ted
5C7.
1312
350.
22.
30.
02.
312
.63.
934
4.6
2.6
4234
3713
2309
213
1612
714
812
456
580
323
Pure
14C
7.90
1204
51.
617
.80.
817
.010
.929
.326
08.7
11.8
8751
5279
541
3621
4817
187
2152
338
227
4021
82Pl
ante
d14
C6.
8910
130.
22.
20.
02.
211
.83.
713
2.4
2.2
3404
3513
1748
211
1381
812
535
460
672
301
Pure
20C
*7.
9298
851.
618
.40.
917
.611
.230
.325
46.9
13.8
9117
5630
343
4422
1217
805
1950
841
327
8921
21Pl
ante
d20
C*
6.97
1428
0.2
3.1
0.0
3.1
12.7
5.3
92.0
4.8
3179
6458
1552
244
1302
111
046
339
760
396
Trea
t4Pu
re3D
7.84
1063
51.
720
.00.
819
.211
.333
.156
09.4
17.1
8485
5510
642
1224
2514
441
2022
141
927
7721
53Pl
ante
d3D
7.71
2071
0.2
2.9
0.1
2.8
11.7
4.8
478.
83.
739
6251
0624
3426
214
393
1589
139
060
337
0Pu
re9D
7.92
1291
51.
618
.70.
717
.910
.930
.954
46.1
12.3
8037
5362
340
0823
3614
691
2099
739
828
8021
82Pl
ante
d9D
7.78
3783
0.3
3.8
0.1
3.6
11.6
6.2
711.
92.
639
4570
6724
0536
013
781
1512
642
871
458
8Pu
re15
D*
7.75
1311
01.
719
.30.
818
.511
.231
.945
91.9
10.4
8682
5813
942
9125
1515
439
2202
038
727
8822
70Pl
ante
d15
D*
7.41
1988
0.2
2.9
0.1
2.8
11.8
4.8
224.
42.
631
0942
4117
2324
012
769
1267
542
865
133
5
Blo
ck
* =
sam
ple
s in
row
s m
arke
d w
ith a
n a
ster
isk
‘*’ are
bas
ed o
n s
ingle
sam
ple
s, o
nly
Use
of an
aero
bic
dig
esta
tes
in
fore
stry
– p
relim
inar
y re
sults
Tab
le 1
. (c
ontinued
)
Trea
tmen
tpH
(in
wat
er)
Con
dTo
tal N
Tota
l CTI
CTO
CC
/N ra
tioO
.M.
N-N
H4
N-N
O3
KC
aM
gN
aAl
FeM
nP
S-
μs/c
m%
%%
%-
%m
g/kg
mg/
kgm
g/kg
mg/
kgm
g/kg
mg/
kgm
g/kg
mg/
kgm
g/kg
mg/
kgm
g/kg
Trea
t5Pu
re7E
6.13
346
0.1
1.7
0.0
1.7
14.0
2.9
2.2
1.8
2597
1998
1762
112
1164
213
369
462
648
271
Plan
ted
7E6.
5478
70.
11.
80.
01.
813
.13.
216
9.7
2.7
2634
2387
1819
130
1128
813
057
458
641
246
Pure
12E
6.37
237
0.1
1.5
0.0
1.5
14.3
2.7
5.1
2.7
3224
1639
2055
112
1281
314
222
468
621
199
Plan
ted
12E
6.69
1304
0.2
2.4
0.0
2.4
13.6
4.1
162.
12.
630
5362
4618
9719
912
220
1083
436
277
430
5Pu
re19
E*
6.21
346
0.1
1.8
0.0
1.8
14.3
3.0
13.4
2.0
3270
1706
1925
130
1359
215
550
472
678
228
Plan
ted
19E
*6.
1727
50.
11.
70.
01.
715
.12.
90.
52.
823
7913
3912
8411
410
993
8888
299
635
188
Trea
t6Pu
re6F
6.23
153
0.1
1.6
0.0
1.6
13.2
2.8
0.4
3.0
3924
2027
2055
141
1583
214
961
582
646
217
Plan
ted
6F6.
0229
10.
11.
60.
01.
613
.72.
813
8.4
2.8
3747
1414
1861
159
1461
413
588
497
676
199
Pure
13F
5.72
910.
11.
40.
01.
413
.92.
40.
31.
928
3513
1515
2711
712
842
1156
048
164
518
7Pl
ante
d13
F6.
8265
40.
11.
70.
01.
712
.22.
930
8.8
2.3
2955
2205
1519
176
1282
611
354
460
675
227
Pure
18F*
5.48
850.
11.
40.
01.
413
.72.
42.
12.
330
8112
1314
6813
813
241
1091
145
963
818
7Pl
ante
d18
F*6.
7410
020.
11.
70.
01.
711
.82.
924
6.4
1.7
3119
2117
1592
206
1293
410
876
393
683
228
Trea
t7Pu
re2G
5.90
135
0.1
1.7
0.0
1.7
14.2
2.9
14.4
4.3
3852
1745
2309
124
1581
215
207
464
491
223
Plan
ted
2G6.
0029
80.
11.
70.
01.
713
.63.
034
.14.
736
4218
6423
4613
615
440
1520
546
550
023
4Pu
re10
G5.
9614
80.
11.
70.
01.
713
.62.
90.
73.
230
4017
4420
7110
013
424
1380
943
153
423
0Pl
ante
d10
G6.
8187
90.
22.
00.
02.
012
.53.
531
7.8
2.0
3440
2336
2133
168
1421
613
647
410
600
285
Pure
16G
*5.
6298
0.1
1.6
0.0
1.6
12.8
2.8
1.2
3.2
3310
1591
1753
130
1508
412
784
497
600
238
Plan
ted
16G
*6.
0029
60.
11.
90.
01.
912
.83.
285
.42.
830
4816
0716
5113
213
816
1191
044
260
324
2
Blo
ck
Use
of an
aero
bic
dig
esta
tes
in
fore
stry
– p
relim
inar
y re
sults
Tab
le 2
. F
urt
her
bas
elin
e ch
emic
al c
om
posi
tion o
f unam
ended
soil,
com
post
, AD
pro
duct
s an
d t
reat
men
t plo
ts (
mea
n o
f duplic
ate
sam
ple
s unle
ss indic
ated
).
Trea
tmen
tBl
ock
BaC
dC
oC
rC
uN
iPb
SrZn
AsB
Hg
ZrM
oSb
SeSn
mg/
kgm
g/kg
mg/
kgm
g/kg
mg/
kgm
g/kg
mg/
kgm
g/kg
mg/
kgm
g/kg
mg/
kgm
g/kg
mg/
kgm
g/kg
mg/
kgm
g/kg
mg/
kgTo
p So
il19
50
520
107
3413
366
60
42
11
1An
aero
bic
Dig
esta
te C
ake
410
212
636
917
6025
10
170
46
41
4PA
S G
reen
Com
post
163
07
2882
2011
811
423
48
140
252
31
9Li
quor
Dig
esta
te77
19
368
101
4852
157
616
054
06
259
49
Trea
t1Al
der
4A15
20
520
119
2118
434
60
31
11
1Al
der
8A17
00
520
99
1918
415
60
32
11
1Al
der
17A*
100
04
1910
723
1538
36
04
21
12
Trea
t2Pu
re1B
960
519
168
2113
387
70
31
11
1Pl
ante
d1B
110
05
2216
1135
2461
58
07
21
12
Pure
11B
246
05
2312
921
1446
56
05
21
11
Plan
ted
11B
165
06
2212
1028
1652
57
05
21
11
Pure
21B*
118
05
1711
831
1533
47
03
21
11
Plan
ted
21B*
119
05
1812
835
1941
47
05
21
12
Trea
t3Pu
re5C
162
18
3168
2197
114
224
814
015
24
16
Plan
ted
5C14
40
522
1110
2321
495
80
72
11
1Pu
re14
C18
01
830
7020
9710
422
79
140
242
41
7Pl
ante
d14
C10
60
517
118
2718
464
70
52
11
1Pu
re20
C*
152
18
3468
2198
104
229
815
025
24
17
Plan
ted
20C
*10
10
416
127
2922
424
60
72
11
2Tr
eat4
Pure
3D14
51
731
6319
9910
120
87
130
202
41
5Pl
ante
d3D
154
06
2314
1126
2357
68
02
11
11
Pure
9D15
71
831
6820
9210
122
28
130
202
31
6Pl
ante
d9D
162
05
2316
1028
2560
58
02
21
12
Pure
15D
*14
41
828
7221
9213
121
49
150
222
31
6Pl
ante
d15
D*
980
417
128
3319
434
70
12
11
1
* =
sam
ple
s in
row
s m
arke
d w
ith a
n a
ster
isk
‘*’ are
bas
ed o
n s
ingle
sam
ple
s, o
nly
Use
of an
aero
bic
dig
esta
tes
in
fore
stry
– p
relim
inar
y re
sults
Tab
le 2
(co
ntinued
)
Trea
tmen
tBl
ock
BaC
dC
oC
rC
uN
iPb
SrZn
AsB
Hg
ZrM
oSb
SeSn
mg/
kgm
g/kg
mg/
kgm
g/kg
mg/
kgm
g/kg
mg/
kgm
g/kg
mg/
kgm
g/kg
mg/
kgm
g/kg
mg/
kgm
g/kg
mg/
kgm
g/kg
mg/
kgTr
eat5
Pure
7E17
90
519
128
2514
385
50
12
11
1Pl
ante
d7E
138
05
1911
832
1444
55
01
21
11
Pure
12E
155
05
2111
931
1538
55
03
21
11
Plan
ted
12E
115
04
1711
735
1936
45
05
11
12
Pure
19E*
152
05
2011
834
1442
66
04
21
11
Plan
ted
19E*
770
315
116
3012
233
50
51
11
3Tr
eat6
Pure
6F12
50
521
109
3018
384
80
62
11
2Pl
ante
d6F
127
05
2214
921
1636
96
06
21
11
Pure
13F
960
416
77
3114
303
60
42
11
1Pl
ante
d13
F97
04
169
730
1634
36
05
11
11
Pure
18F*
100
04
157
626
1429
36
04
11
11
Plan
ted
18F*
102
04
168
726
1531
36
07
11
12
Trea
t7Pu
re2G
159
06
229
1020
1748
58
04
21
11
Plan
ted
2G15
60
622
910
1819
485
80
21
11
1Pu
re10
G15
30
522
99
2316
385
60
22
11
1Pl
ante
d10
G14
20
522
119
2419
425
70
32
11
1Pu
re16
G*
116
05
198
832
1835
47
05
21
11
Plan
ted
16G
*10
50
417
88
2919
324
60
32
11
1
Anaerobic Digestate and Compost Trials in Commercial Forestry 28
ANNEX 5. TREE HEIGHT AT PLANTING.MISC 437 P11 - Use of Anaerobic Digestate (AD) to Establish Trees
Height at planting (mm) Date: Assessors:
Assessment plot size 3 trees x 3 trees Weed C over 0% in all plots N
95 113 97 93 95 91 89 79 113
73 103 77 121 115 97 93 115 91
111 83 109 55 103 99 119 87 85
B LK I
83 101 125 99 107 83 117 115 97
117 87 123 93 119 111 115 111 81
75 123 109 119 83 95 99 105 77
81 83 109 89 101 97 95 89 105
123 77 65 103 113 103 85 143 83
83 81 69 83 77 101 99 107 91
B LK II
95 133 95 125 81 91 85 109 117
109 105 117 123 87 91 121 123 125
87 127 97 67 87 95 73 115 91
77 127 101 89 83 111 93 105 55
95 91 103 103 77 79 81 103 93
73 115 91 97 79 113 81 67 71
87 65 99 119 133 119 101 81 83
63 89 83 123 109 91 95 85 75 B LK III
87 89 117 107 111 95 57 79 111
71 93 79 103 89 85 107 103 97
101 73 103 87 71 113 131 91 63
125 81 85 95 61 73 81 79 115
1b
19e
18f
13f
12e
7e
6f
21b
16g
15d
10g
20c
17a
14c
11b
SM17/02/2011
9d
4a
3d
8a
5c
2g
Appendix 8 Tree Height at Planting
Anaerobic Digestate and Compost Trials in Commercial Forestry 29
Appendix 9 Photographic Records
Site prior to weed control September 2010
Weed Control 1st November 2010
Anaerobic Digestate and Compost Trials in Commercial Forestry 30
Site Following Cultivation 23rd November 2010
Heavy snow in early December 2010
Anaerobic Digestate and Compost Trials in Commercial Forestry 31
Dry Digestate Wet Digestate
PAS100 Compost Liquor
Plot Layout
N
Plot layout 5 trees x 5 trees
Samples taken from the pits marked as yellow
Two pits were sampled in each plot in Blocks I and II
Anaerobic Digestate and Compost Trials in Commercial Forestry 32
Trial Area During Construction – December 2010
Trial Area During Construction – December 2010
Anaerobic Digestate and Compost Trials in Commercial Forestry 33
Trial Area During Construction – December 2010
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