Debra Harrington and Debra Harrington and Haizhi ChenHaizhi Chen

FDEP Groundwater FDEP Groundwater ProtectionProtection

June, 2005June, 2005

HYDROPORT RETRIEVAL APPLICATION

FOR ASSESSMENTS

WATERSHED MANAGEMENT and WATERSHED MANAGEMENT and BASIN ASSESSMENTSBASIN ASSESSMENTS

IDENTIFY IDENTIFY

WATER QUALITY ISSUESWATER QUALITY ISSUES

IWRGRI

BASIN

ASSESSMENTS

SRA

Surface Water

Ground Water

Interaction

Spring Spring WaterWater

GROUND WATER DATAGROUND WATER DATA Background, Trend, VISA, Status NetworksBackground, Trend, VISA, Status Networks USGS and Water Management DistrictsUSGS and Water Management Districts HRS, PWS, WSRPHRS, PWS, WSRP Springs Special ProjectsSprings Special Projects

SURFACE WATER DATASURFACE WATER DATA Storet/IWR Spring Run StationsStoret/IWR Spring Run Stations Associated IWR Spring ZZZ StationsAssociated IWR Spring ZZZ Stations Springs Initiative - Spring VentSprings Initiative - Spring Vent

CENTRALIZED DATABASE FOR GROUND WATER AND SPRINGS

GROUND WATER SITESGROUND WATER SITES Conduit (grab samples)Conduit (grab samples) Conduit TubingConduit Tubing Monitor and Drinking Water WellsMonitor and Drinking Water Wells

SURFACE WATER SITESSURFACE WATER SITES Spring VentSpring Vent Spring SeepSpring Seep Spring BoilSpring Boil Spring RunSpring Run Open Drain (siphon, pjole, karst window etc.)Open Drain (siphon, pjole, karst window etc.)

STATION CLASSIFICATION

AUTOMATED SCREENING MODEL

GW/ SW RELATIONAL ASSESSMENT (SRA)

Base flow

Baseflow that supports aquatic life.

Uses surface water criteria and reference values to evaluate ground water that interacts with surface water.

The SRA is based on the percent of samples that exceed a threshold related to the environmental conditions necessary to support aquatic life.

The SRA is used to assess samples obtained from spring vents, boils, seeps, runs and other surface water bodies associated with springs.

Other integrated information such as topography, hydrology, stratigraphy, percent baseflow, and microlanduse are also considered.

GROUND WATER RESOURCE INDEX (GRI)

Potable water

Highest designated use of ground water.

Uses ground water standards for contaminant groups such as BIOLOGICAL, NUTRIENTS, ORGANICS, INORGANICS AND SALTWATER INTRUSION.

The GRI is based on the percent of wells that exceed a ground water standard and is calculated with and without aquifer stratification.

The GRI is used to assess spring samples obtained from conduits, monitor wells and drinking water wells located in the springshed. Important areas are identified that may need further investigation.

GW STANDARDS – SURFACE WATER CRITERIA

NEW ASSESSMENT TOOLSNEW ASSESSMENT TOOLS

www.floridagroundwater.org

HYDROPORT RETRIEVAL APPLICATIONHYDROPORT RETRIEVAL APPLICATION

CHOOSE WATER RESOURCECHOOSE WATER RESOURCE

CHOOSE LOCATIONAL UNITSCHOOSE LOCATIONAL UNITS

CHOOSE TYPE OF STATISTICS AND DATESCHOOSE TYPE OF STATISTICS AND DATES

CHOOSE ANALYTES OR THRESHOLDSCHOOSE ANALYTES OR THRESHOLDS

Submit to retrieve the statistics reportSubmit to retrieve the statistics report

Total Wells and # Below Detection

Median & Range

Evaluate Ground Water Quality Evaluate Ground Water Quality Potable Use and BaseflowPotable Use and Baseflow

% Over Ground Water Standards

% Over Surface Water Standards

% Over Risk Indicators

Click QA Results – Shows Wells Included Can Exclude Any Sample and Resubmit

Follow instructions for QA Protocols – User Comments Check Original and Modified Values

Exported EXCEL Spreadsheet for ArcMap

Automatic Mapping of GW/SW Stations

Explore GW Wells and SW Stations

GROUND WATER – SURFACE WATER ASSESSMENTS

SELECT SPECIFIC AQUIFERSELECT SPECIFIC AQUIFER

SPRING SYSTEM ASSESSMENTS

IDENTIFY GROUND WATER STATIONS

TYPED AS SURFACE WATER IN IWR

DATABASE

GROUND WATER DATA GROUND WATER DATA COMBINED WITH SPRING COMBINED WITH SPRING RUN DATA CAN PRODUCE RUN DATA CAN PRODUCE ERRONEOUS STATISTICS ERRONEOUS STATISTICS FOR IWRFOR IWR

Lower DO mediansLower DO medians

Lower or Elevated nitrateLower or Elevated nitrate

Spring Nitrate TrendsIchetucknee Springs Cluster

0.00

0.10

0.20

0.30

0.40

0.50

0.60

0.70

0.80

0.90

1.00

9/1

/01

11

/1/0

1

1/1

/02

3/1

/02

5/1

/02

7/1

/02

9/1

/02

11

/1/0

2

1/1

/03

3/1

/03

5/1

/03

7/1

/03

9/1

/03

11

/1/0

3

1/1

/04

3/1

/04

5/1

/04

7/1

/04

9/1

/04

Collection Date

Nitr

ate

s (N

itra

te+

Nitr

ite)

(mg

/L)

Blue Hole Cedar Head Ichetucknee Head Mission Mill Pond SRA Threshold

Ground Water Nitrate TrendsIchetucknee Springshed Wells

0.00

0.50

1.00

1.50

2.00

2.50

3.00

1/1

/86

1/1

/87

1/1

/88

1/1

/89

1/1

/90

1/1

/91

1/1

/92

1/1

/93

1/1

/94

1/1

/95

1/1

/96

1/1

/97

1/1

/98

1/1

/99

1/1

/00

1/1

/01

1/1

/02

1/1

/03

1/1

/04

1/1

/05

Collection Date

Nitra

tes (

Nitra

te+

Nitri

te)

(mg

/L)

SRA ValueLinear Trend

COMPARE NITRATES IN SPRINGS TO GROUND

WATER

Spring Nitrate TrendsIchetucknee Springs Cluster

0.00

0.10

0.20

0.30

0.40

0.50

0.60

0.70

0.80

0.90

1.00

9/1

/01

11

/1/0

1

1/1

/02

3/1

/02

5/1

/02

7/1

/02

9/1

/02

11

/1/0

2

1/1

/03

3/1

/03

5/1

/03

7/1

/03

9/1

/03

11

/1/0

3

1/1

/04

3/1

/04

5/1

/04

7/1

/04

9/1

/04

Collection Date

Nitr

ate

s (N

itra

te+

Nitr

ite)

(mg

/L)

Blue Hole Cedar Head Ichetucknee Head Mission Mill Pond SRA Threshold

ASSESSMENTREPORT

TARGETED TARGETED

MONITORINGMONITORING

HOT SPOT &HOT SPOT &LAND USE LAND USE

IDENTIFICATIONIDENTIFICATION

DATA ANALYSESDATA ANALYSESSPATIAL MAPPINGSPATIAL MAPPING

BASIN STATUSBASIN STATUS

IWR ASSESSMENTIWR ASSESSMENT

ACTION PLANACTION PLAN

WATERSHEDWATERSHED

PROTECTIONPROTECTION

BASIN ASSESSMENT MODEL

FOR MORE INFORMATION CONTACTDebra Harrington

850-245-8232

GROUND WATER PROTECTION

FLORIDA DEPARTMENT OF ENVIRONMENTAL PROTECTION

TALLAHASSEE, FLORIDA