Slide 1

This presentation is to summarize the changes to the DCPM that are proposed from the 2011 version Slide 2 What is the DCPM? D Design [dih-zahyn] to prepare the preliminary sketch or the plans for (a work to be executed), especially to plan the form and structure of: to design a new bridge. C - Construction [kuhn-struhk-shuhn] the way in which a thing is constructed: a building of solid construction. P Practice [prak-tis] habitual or customary performance; operation: office practice. M Manual [man-yoo-uhl] a small book, especially one giving information or instructions Slide 3 What is the purpose of DCPM? The purpose of this manual is to consolidate the rules, regulations and guidelines covering the design and construction of water and wastewater facilities within the service areas of the Anchorage Water and Wastewater Utility (AWWU). The complexity of our system necessitates standardizing design practices which will provide a consolidated guideline to facilitate proper maintenance of the system. Slide 4 What Rules? AWWU Tarriff Wastewater utility Water utility 10-State Standards Others not specifically listed here Slide 5 What Regulations? EPA Safe Drinking Water Act (SDWA) & CFRs ADEC Alaska Administrative Code (AAC) 18 Environmental Conservation Chapter 70 Water Quality Standards Chapter 72 Wastewater Treatment and Disposal Anchorage Municipal Code (AMC) Title 21 Land Use Planning Title 23 Building Codes Title 24 Streets & Rights of Way Title 26 Utilities Others not specifically listed here Slide 6 What Guidelines? American Water Works Association Standards Manufacturers recommendation Ductile Iron Pipe Association DIPRA Plastic Pipe Institute PVC Pipe Association Others not specifically listed here Slide 7 What is the history of the DCPM 1990 Issued by Richard Besse, GM (first saved copy) 1994 Updated Under Mark Premo, GM 2003 Update Started but not completed 2004 - Updated Under Mark Premo, GM 2007 Update Started but not completed 2008 Update Started but not completed 2010 Updated Under Mark Premo, GM 2011 Updated Under Mark Premo, GM 2012 Update in progress Slide 8 Rate Payers Engineers Contractors Developers AWWU Operations and Maintenance Other City Governments by reference to MOA MASS & DCPM And anyone else who interfaces with the above including policy makers Slide 9 Rate Payers Provides a method of delivering safe, high quality water at a reasonable rate Ensures compliance and responsible wastewater collection and treatment Ensure longevity of the water/wastewater system to reduce and/or control rate increases due to replacement of existing infrastructure Efficient and orderly development to maintain quality of life metrics (housing values, healthy living) Slide 10 Engineers The DCPM reduces design costs by implementing a play book in which the designer and utility employees can work from to promote orderly, efficient, and enduring infrastructure. Slide 11 Contractors The DCPM provides clear and concise requirements for durable infrastructure construction Allows AWWU to inform Contractors installing AWWU infrastructure of expectations facilitating ease of construction and reduce rework Slide 12 Developers The DCPM ensures that all parties are working from one standard. Promotes transparency of AWWU requirements Slide 13 AWWU Operations & Maintenance The DCPM incorporates lessons learned from existing materials and practices to promote longevity of the infrastructure Streamline inventory by installing consistent products such as valves, fire hydrants, and pipe materials Slide 14 Others AWWU appears to be leading other communities in Alaska developing standards for infrastructure installation, rehabilitation, and maintenance as such they reference our manual. This is a best practice as identified in benchmarking projects AWWU has participated in Slide 15 Slide 16 Sections Section 10 General Section 20 Items that are applicable to both water and sewer Section 30 Items only applicable to sewer Section 40 Items only applicable to water Section 50 Items applicable to record drawings Section 60 Drafting, notes and presentation styles Section 70 Appendices, SCADA, abbreviations, definitions Slide 17 Material changes Specific Items Grammatical Update (legalese) - Example Organization - Example Add / remove requirements - Example Remove duplicated text - Example Slide 18 Material Changes New Requirements Trace wire for all non-metallic pressure pipe Warning tape for all pipe installations Fusion bonded epoxy coatings on all fittings Slide 19 Material Changes Specified fittings commonly used in design and construction: Section 30 Sewer Fittings Inflow Dish required on water tight manholes Slide 20 Material Changes PVC over insertion protection device EBAA Iron Mega-Stop Prior to insertionAfter insertion The why over insertion caused break Slide 21 Material Changes Require stainless steel key box rod Slide 22 Grammatical Updates - Example Shall versus Must (most of the changes to the DCPM had to do with this) Correct usage The engineer shall submit plans. Legal translation The engineer has a duty to submit plans. Slide 23 Grammatical Updates - Example Shall versus Must (most of the changes to the DCPM had to do with this) Incorrect usage The pavement shall be saw cut. Legal translation The pavement has a duty to be saw cut The pavement cannot have a duty, thus: The pavement must be saw cut. Slide 24 Organization Example Change 2011 DCPM Pavement removal Previous Location Section 30 Sewer Slide 25 Organization Example Change 2012 DCPM Pavement removal New location Section 20 Water and Sewer Slide 26 Add/remove requirements Corrosion Control and Study DCPM Section 20.10 2010 & 2011 Corrosivity evaluation report required for all projects Slide 27 Add/remove requirements 2012 DCPM removes the requirement for a mandatory corrosivity evaluation if the design met AWWU minimums for corrosion protection: 20.10.06 Standardized Corrosion Protection In recognition of AWWUs commitment to ensure the longevity of our underground pipe assets while creating efficiencies in the design and construction of those assets; the requirement for a corrosivity evaluation will be removed when the design includes the following items: 1. Anodes installed on all metallic water/sewer main line & water services 2. Non-metallic water mains and apparatuses must have an anode on all metallic fittings with the limit that one anode may serve fittings and fire hydrants within 20 of the anode with the exception of EBAA Iron Mega-Stop which does not require an anode. 3. Anodes installed at a regular interval of eighteen feet (18) or less on sixteen inch diameter (16 ) or smaller ductile iron pipe 4. Two zinc ribbon anodes with test stations installed on either side of sixteen inch diameter (16 ) or greater ductile iron pipe. Ribbon anodes must be properly detailed and sized for the soil conditions. 5. Electrical continuity is installed and tested for all ductile iron pipe 6. Epoxy coating is specified for all fittings 7. Require protective coatings on all metallic pipe unless the engineer can demonstrate that groundwater is not present at the proposed burial depth of the pipeline. 8. Stainless steel bolts are specified for all bolts used to construct valves 9. Stainless steel bolts or blue bolts are specified for water fittings 10. Stainless steel operating rods for copper water services Slide 28 Remove Duplicate Text - example 2011 DCPM 20.04.05 2011 DCPM 20.13.02 2012 DCPM merged 20.04.05 & 20.13.02 into one location: Slide 29 Estimated cost impacts Private Development Projects Capital Improvement Projects Operations and Maintenance Slide 30 What are the potential savings for private developers Private developers can expect cost savings in these areas: AWWU is to provide modeling of fire and waste flows ($500) Removed requirement for unified AutoCAD drafting (layer names) and geographical information ($1,000-$2,500) Shortened required length of mainlines in Cul-de-sacs ($50) Removed mandatory requirement for corrosion evaluation reports ($3,000-$5,000) Removed requirement for tightly bonded coated sewer DIP ( $500-$1,000/stick) Streamlined process to construct service extensions beyond other utilities ($100-$500) Removed SCADA requirement for private lift stations ($2,500- $10,000) Slide 31 What are the potential additional costs for private developers Private developers can expect cost increases in these areas: Expanded the use of Stainless steel to key box rods ($100- $200) Expanded requirements of water shutoff notifications ($100- $200) Require all fittings to be epoxy coated ($30-$50 per fitting w/o accounting for savings by not having to use denso paste/tape) Require the use of tracer wire on all non-metallic pipe ($50) Require the use of an over insertion device for PVC pipe installation ($50-$100 per joint) Slide 32 What will it cost/save the Capital Improvement Program Reduces cost associated with: Corrosion study Increased costs associated with: Stainless steel key boxes Water outage notification Over insertion device for PVC pipe Slide 33 What will it cost/save Operations and Maintenance Reduces cost associated with: Mainline breaks By increasing the longevity of newly installed assets Stainless steel key box rods Epoxy coated fittings Standardized cathodic protection (conservative protection) Increased costs associated with: Stainless steel key boxes Slide 34 Schedule Scheduled meetings Public Notices Policy Memo Notice Period for Changes to Construction Slide 35 Rollout Revisions Continuous Improvement Edits to the manual started in early December 2011 Draft 2012 DCPM is published January 19, 2012 Review meetings Field Services December 14 th, 2011 CIP Staff February 2, 2012 Public February 16, 2012 Draft 2012 DCPM comment period closure February 21, 2012 Final DCPM Published March 7, 2012 Slide 36 Public Notice Post Card Slide 37 Public Notice Email Slide 38 Policy Memo Notice Period Slide 39 Impacts from the Corrosion Master Plan Manhole infiltration requirements PVC Restraint Belt and Suspenders Modification of the Municipality of Anchorage Standard Specifications (MASS) Dewatering requirements ADEC, Contaminated sites, DNR permitting