Overview of the Status and Trend Monitoring Networks. Sept 20, 2017 Florida Department of Environmental Protection Watershed Monitoring Section

Transcription

1 Overview of the Status and Trend Monitoring Networks Sept 20, 2017 Florida Department of Environmental Protection Watershed Monitoring Section

2 Sampling Staff FDEP Regional Operations Center Staff located in in Pensacola, Tallahassee, Jacksonville, Orlando, Tampa, Fort Myers, & Fort Pierce External Partners NWFWMD, SJRWMD, Alachua County, & the SFWMD

3 Watershed Monitoring Section Administration Jay Silvanima Quality Assurance - Stephanie Sunderman-Barnes Project Managers Tom Seal: NWFWMD, SJRWMD, & Alachua County Lori Balinsky: SRWMD, SWFWMD & SJRWMD Status Ground Water Carolyn Voyles: SFWMD Data Management, Analysis and Reporting Liz Miller and Indira Pindi: Data Management Andy Woeber: Geographic Information support Rick Copeland & Chris Sedlacek: Data Analysis WMS team: Data Reporting

4 Protect physical, chemical, and biological integrity (Clean Water Act) 305 (b), 303 (d) Produce 305 (b) (Integrated) reports to EPA on findings every 2 years Florida Statutes: Chapters 376 and 403 Authorizes Florida DEP to monitor water quality through state programs Chapter & Florida Administrative Code, to assess whether Florida waters meet water quality standards for designated uses

5 What is the ecological condition of waters in Florida? Has the condition of water in Florida changed over time? What is the extent of streams/rivers that meet their designated use? What proportion of lakes failed water quality standards in any given year? Is my lake safe to swim in?

6 Prior to Mid 1990 s - no comprehensive design. Monitoring changed with funding and policy. 305 (B) report was produced with found data. Limited waters assessed. Mid 1990 s, Ecosystem Management. Development of the Integrated Water Resource Monitoring (IWRM) Network Hierarchical approach with monitoring designs based on scale of resource coverage, e.g. state and region wide vs. basin and site specific.

7 Basic questions need to be addressed: Who What When Where Why How What resources will it take to do it right?

8 1. Monitoring Program Strategy 2. Monitoring Objectives 3. Monitoring Design 4. Core and Supplemental Indicators of WQ 5. Quality Assurance 6. Data Management 7. Data Analysis and Assessment 8. Reporting 9. Programmatic Evaluation 10. General Support and Infrastructure Planning

9 To provide scientifically defensible information on important chemical, physical and pertinent biological characteristics from surface waters and major aquifer systems in Florida.

10 So, why are we here? What s our role in the big picture?

11 Two monitoring designs utilized for the task Trend Monitoring Network Status Monitoring Network

12 Trend Network: Long term trends in surface and ground water at fixed stations. 78 surface water, 51 groundwater stations. Status Network: Annual statewide surface and ground water quality condition snapshot. Probabilistic design - stratified random sample survey

13 GOALS: Make estimates of change in water quality at set stations over time Determine correlations with Status Network monitoring results in the same region Estimate general surface water basin-wide loading

14 Site Selection Process: Reasonable site access. Preference for sites with existing long-term historic water quality and/or flow records. Fixed locations, we return to the same spot at a set interval in time

15 Site Selection Process: Select sampling sites at lower end of watersheds ( pour point, basin confluence) Sampling stations also located near the state line on major rivers entering Florida from Georgia and Alabama Locate near existing flow gage stations if possible

16 Measurements Collected at Sites: standard suite of physical and chemical measurements on a monthly basis trace metals suite annually in April bioassessments (HA, SCI, RPS, LVS) performed twice within a year (at least 4 months apart) for sites deemed appropriate for the SCI. Refer to Page 124 figure 2 of your Sampling Manual

17 Surface Water Trend Network 78 surface water fixed sites sampled on a monthly basis

18 Well Selection Process: Selected one unconfined and one confined aquifer well (when present) per watershed (USGS 8 digit hydrologic unit code). Preference given to cluster sites. These have both the confined and unconfined wells for each watershed located in close proximity of each other.

19 Measurements Collected at Sites: field measurements monthly at unconfined aquifer wells, quarterly at confined aquifer wells. standard suite of lab analytes quarterly non-filtered metals and one set of filtered samples during October sampling.

20 Ground Water 49 Trend Stations Confined Aquifer sites 4X year Unconfined sites 12X year field parameters with 4X WQ

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22 What is the function of a Statewide Targeted Sampling Due to limited resources we can not sample every stream segment, every lake, etc. Probabilistic Status Network Targeted sampling Probabilistic Monitoring Provides estimates of WQ condition for 100% 0f sampleable Statewide Water Resources Population Estimate of Water Resource

23 GOALS: Characterize statewide water resource conditions Infer percentage of each resource that meets standards or designated use (surface & ground water) with known confidence

24 o o Consists of a random set of water samples selected from a target population. It is used to infer the characteristics of the target population via a subset of the target population A census is a type of survey in which all waterbodies of the target population are selected. It provides the distribution for the entire target population

25 Stratified random sample design Strata include: 1. Water resource type: rivers, streams, canals, large and small lakes, and confined and unconfined aquifers 2. Geography: state divided into 6 regions by water management district boundaries Design Document found at

26 6 zones 7 resources 90 samples per sw resource type per year (15 per zone) 60 samples for canals per year (15 per 4 zones) 120 samples for gw resources per year (20 per zone)

27 Utilizes a design methodology developed by US EPA Generalized Random Tessellated Stratified (AKA GRTS)

28 Coverages of flowing waters and lakes are maintained in a geodatabase. Random site selections are made from each of the five surface water resources Annually 15 primary selections alternate selections are made per zone

29 A groundwater listframe of confined and unconfined wells is maintained with input from WMDs, counties/local governments and FDEP programs. Random well selections are made from the listframe for confined and unconfined aquifer sampling annually. Annually 20 primary selections alternate selections are made per zone.

30 Resource Type Confined & Unconfined Aquifers Rivers, Streams and Canals Small Lakes Large Lakes Site Selection Methodology Selected by well Selected by line work segments Selected as centroid of single lake Selected by area of lakes can have multiple stations in one lake

31 Limit population to systems where Water Quality Standards apply (Waters of the State) Rivers, Streams and Canals. Named waterbody or connected to other waters of the state. Small (4 to less than 10 hectares) and Large lakes (greater than or equal to 10 hectares). Does not include storm water ponds, borrow pits, ag ponds. Includes natural lakes and large impoundments.

32 Core indicators include physical measurements, major ions, nutrients, and bacteria Resource specific indicators include habitat assessments for rivers, streams, & canals lake vegetative index, sediment analyses, wastewater tracers, & pesticides for lakes

33 Core indicators include physical measurements, major ions, nutrients, trace metals, and bacteria

34 Wastewater tracers suite Sucralose and three pharmaceuticals (acetaminophen, carbamazepine, primidone) and the pesticides diuron, linuron, imidacloprid, and fluridone Organonitrogen and organophosphorus pesticide suite

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37 QA procedures set out in sampling manual (based on DEP SOPs). Follow sample order except first 15 (SW) or 20 (GW) selections. Recon and collect samples from sites that meet definition of resource.

38 Are Alligators an Exclusion?

39 Resource Size - Number in Population Resource size - Length (miles) Resource size - Area (square miles) Water Sites Sites (%) (%) Resource Assessed Sampled Sampled (%) Dry Inaccessible Large Lakes 1,702 N/A Small Lakes 1,891 N/A Rivers N/A 2,677 N/A Streams N/A 16,385 N/A Canals N/A 2,630 N/A Unconfined Aquifers 16,027 N/A N/A Confined Aquifers 13,449 N/A N/A (%) Wrong Resource

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41 Why can the first sites be sampled in any order? Given our aim of sampling either 15 sw or 20 gw sites per zone we will have to evaluate at least 15 or 20 sites to collect the samples. Why must the overflow samples be collected in order? The order of the random draw must be maintained for the statistical analysis. Cannot skip around for convenience.

42 Why does the sampling design consist of 15 sw or 20 gw primary sites per each zone, and additional overflow sites for these resources? Need adequate sample size for statistical validity of a statewide estimate Overflow sites allow for an adequate number of samples knowing there will be owners refusals, droughts, wrong resources, and other exclusions.

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45 Why is it important to sample the selected well in a well field if there is another nearby? The new well is not part of the population identified for the network. It may be tapping a different aquifer, or have very different characteristics.

46 Statewide sampling by different people. Need to be sure we all are following the same protocols! Sampling protocols taught for S&T network. Required to attend course and pass exam, 5 year renewal. Q/A Officer oversees training and follows up with field audits of samplers throughout the state. All samples analyzed at central laboratory.

47 Supply data for the determination of Impairment Report for the Clean Water Act Section 305 (b). Submit annual ground and surface water performance reports to Florida Legislature. Create State wide and Region wide (Zone) Reports for the general public and other members of the Department. Support for DEP and other FL WQ monitoring programs

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49 95% CONFIDENCE ANALYTE TARGET POPULATION (MILES) NUMBER OF SAMPLES % MEETING THRESHOLD BOUNDS (% MEETING THRESHOLD) % NOT MEETING THRESHOLD ASSESSMENT PERIOD TN 2, % % TP 2, % % Chlorophyll a 2, % % Un-ionized Ammonia 2, % % Fecal Coliform 2, % % DO 2, % %

50 Statewide GWQ Monitoring #Sampled # Failing DW Std. 1 % Failing DW Std. % Passing DW Std. Error (± %) BKN 2 & TV Wells Status & TV Wells Status & TV Wells Status & TV Wells Status & TV Wells Status & TV Wells Status & TV Wells Status & TV Wells Status & TV Wells Status & TV Wells Status & TV Wells Status & TV Wells Failures of primary drinking water standards for arsenic, cadmium, chromium, fluoride, lead, nitrate+nitrite as N, & sodium.

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52 Water Resource (n) Size* Sucralose Estimate ± 95% CB Pharmas Estimate ± 95% CB Assessment Period Canals (60) Jan.-Feb 2015 Streams (89) July-Aug Rivers (90) May-June 2015 Large Lakes (90) April-May 2015 Small Lakes (78) Sept.-Oct Unconfined Wells (118) Nov.-Dec * Units are as follows: canals, streams, and rivers = kilometers; lakes = hectares, unconfined aquifers = number of wells.

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54 Internet site containing useful information for the Status and Trends Networks.

55 Your support of the program will include on-the-ground reconnaissance (recon) and sampling. Recon and sampling encompass office and field responsibilities, including data entry & review. You will receive support from Tallahassee for training, scheduling, QA, data review, data management, and reporting. Tools such as sampling procedures, program protocols, & recon manuals are available electronically. Similar to the Strategic Monitoring Program or other monitoring programs, there are time sensitive deadlines.

56 You make answering the questions about Florida Water Quality possible! Training on implementing the monitoring networks and fundamental Quality Assurance ensures the best quality data is available to answer these questions for a large audience of individuals and agencies.

57 Questions?