Ecology groundwater assessment studies

underway | completed

Underway studies

Classified according to general study types
Toxics studies (5)
Water quality studies (3)
Groundwater-surface water interaction studies (3)
Ambient monitoring (3)
Water resources studies (1)
map of Washington state
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190

Holden Mine Remediation Technical Assistance

A monitoring well at the Holden Mine remediation site (photo courtesy of D. Saul)

Study type: toxics

EAP is providing technical support to the Central Regional Office of the Ecology Toxics Cleanup Program on groundwater issues related to the cleanup of metals contamination in the Railroad Creek valley. Contaminated acid mine drainage and leachate from mine tailings piles are impacting the water quality of Railroad Creek.

Project lead: Charles Pitz
Phone: (360) 407-6775
Make a request or comment

189

Black Lake Grocery Groundwater Monitoring

Study type: toxics

Black Lake Grocery is an active gas station and convenience store located on the northwest shore of Black Lake, Thurston County, Washington.The goal of this project is to provide Ecology's Toxics Cleanup Program (TCP) with current groundwater data so they may evaluate the effectiveness of the treatment wall in remediating the contaminated groundwater before it enters Black Lake. To accomplish this goal Ecology's Environmental Assessment Program (EAP) will collect groundwater samples for total petroleum hydrocarbons as gasoline (TPH-G), and benzene, toluene, ethylbenzene, and xylene (BTEX) from 11 on-site monitoring wells quarterly for one year. The wells will provide monitoring points to evaluate groundwater conditions throughout the project area.

Project lead: Pam Marti
Phone: (360) 407-6768
Make a request or comment

Document(s):
188

Analyzing Pharmaceuticals and Personal Care Products in Effluent and Groundwater at Three Reclaimed Water Facilities.

Study type: ambient

Pharmaceuticals and personal care products (PPCPs) will be analyzed in effluents and groundwater at three reclaimed water treatment facilities in Washington State--Yelm, Quincy, and LOTT Martin Way--in the spring and fall of 2011. The objectives are to: (1) expand Ecology's understanding of PPCPs in reclaimed water, (2) assess impacts to groundwater at recharge sites, and (3) identify potential PPCP indicator compounds for future monitoring. The completed project will provide data on two reclaimed water samples, two upgradient groundwater samples, and four downgradient groundwater samples for each facility. The samples will be analyzed for 119 PPCPs and 27 synthetic or naturally-occurring steroids and hormones using isotopic dilution methods. Detection limits will be in the low parts per trillion.

Project lead: Pam Marti
Phone: (360)407-6768
Make a request or comment

Document(s):
187

Crab Creek Alternate Water Supply Route Study

Study type: ambient

An alternate water supply project was designed to deliver additional irrigation water to the Potholes Reservoir. The proposed route for this supply water is from Billy Clapp Lake through the existing Crab Creek channel and Moses Lake. The purpose of this study is to collect baseline data for local groundwater prior to the introduction of supply water. Once the supply water is released, continued monitoring will assess the impact of the supply water on local groundwater. Multiple parameters are being collected from a network of 7 wells along Crab Creek and Rocky Ford Creek. Parameters include water level, temperature, dissolved oxygen, pH, conductivity, nitrogen, phosphorus, chlorides, sulfates, alkalinity carbonate/bicarbonate, and cations.

Project lead: Scott Tarbutton
Phone: (509) 329-3453
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Document(s):
186

Lacamas Creek TMDL Groundwater Support

Study type: TMDL

Lacamas creek, in southern Clark County, commonly does not meet water quality standards for temperature, dissolved oxygen, and fecal coliform bacteria. This study, which is part of Ecology’s larger TMDL effort for the Lacamas Creek watershed will evaluate the thermal and water quality influences that discharging groundwater imparts to gaining reaches of the creek. See the project QAPP below for additional details about the study design and timeline.

Project lead: Kirk Sinclair
Phone: (360) 407-6557
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Document(s):
183

Effects of Conventional versus Moderate Tillage on Groundwater Nitrate at a Manured Grass Field

Study type: agricultural

A recent Ecology/Washington State University study (Publication No. 10-03-042 - in draft) found elevated groundwater and soil nitrate concentrations in the fall and winter following conventional tillage of a grass field receiving dairy manure. The purpose of this current study is to compare the effects of conventional tillage with those of moderate tillage in a shallow water table aquifer. During conventional tillage, the soil is disturbed 8 times to a depth of 3 feet. The moderate tillage method employed only disturbs the top few inches of soil once. Because the soil is not completely turned over using the moderate tillage method, there is less opportunity for soil organic nitrogen to oxidize and mineralize to nitrate. The study will be carried out from 2009 through 2011 on the same study field where tillage occurred previously. The field will be divided in half with three monitoring wells in each half. One half of the field will receive conventional tillage and the other half moderate tillage. Both sides of the field will be re-seeded in grass. Ecology will sample groundwater four times per year for two years following tillage, mostly during the wet fall and winter months. WSU will quantify manure nitrogen applied and monitor soil nitrate, grass nitrogen uptake, and irrigation water nitrogen applied to the field. A subsurface deposition aerator will apply nitrogen as fertilizer to both fields. Results will be analyzed to determine if there is a difference in groundwater nitrate concentrations beneath the two halves of the field.

Project lead: Barb Carey
Phone: (360) 407-6769
Make a request or comment

Document(s):
182

State-wide water level data compilation

Study type: resources

Water level monitoring data collected over the past 30+ years by the regional offices of Ecology's Water Resources Program are currently stored and managed in separate regional databases. The goal of this project is to consolidate these independent data sets in the Ecology Environmental Information Management (EIM) system. Project tasks will include: 1) Evaluate regional data sets for completeness, 2) Work with regional staff to assemble missing metadata where available, 3) Update datums/elevations to conform with Ecology NGVD88 standard, 4) Upload data to the EIM system, 5) Perform a QA review of the uploaded data. The project will focus on consolidating manual measurements of water level; continuous transducer data will be addressed in a future effort.

Project lead: Kirk Sinclair
Phone: (360) 407-6557
Make a request or comment

181

Hangman Hills Groundwater Study

Performing a constant head injection test.

Study type: TMDL

Hangman Hills is a project in Spokane County that is being conducted to support the Hangman Creek TMDL. The primary concern is the contribution of nutrients from groundwater and their impact on surface water. There are several identified sources including the wastewater treatment plant lagoons, the golf course, and residential contributions from on-site sewage systems and fertilizer use. The Hangman Hills Groundwater project entails collecting and analyzing data, which will occur in the Summer of 2010.

Project lead: Melanie Redding
Phone: (360)407-6524
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Document(s):
180

Basic American Foods

Study type: agricultural

Basic American Foods is a potato processing facility in Moses Lake that land applies their processed wastewater year-round to crops grown on sand dune deposits. The purpose of this project is to determine whether BAF requires winter storage for their process wastewater, by evaluating whether their current management practice of year round application is just as effective as a winter storage lagoon in protecting groundwater. Parameters of concern include nitrogen, phosphorous, TDS, and hydraulic loading.

Project lead: Melanie Redding
Phone: (360) 407-6524
Make a request or comment

109

Sumas Blaine Surficial Aquifer Long-term Ambient Groundwater Monitoring

Study type: ambient

The purpose of this project is to implement a long-term ambient groundwater monitoring program in the Sumas-Blaine surficial aquifer. This aquifer has been identified as one of the most severely contaminated aquifers in Washington State (Erickson, 2000). This study is designed to build on the previous monitoring efforts in order to provide an annual assessment of the status of the groundwater quality. Additionally, this monitoring program can assist in identifying new groundwater problems which may arise. Thirty-five wells will be sampled annually for nitrate, chloride, and bromide in March beginning in 2009. This project will continue as long as funding is available.

Project lead: Melanie Redding
Phone: (360) 407-6524
Make a request or comment

Document(s):
82

Upper Yakima Basin Temperature TMDL Groundwater Study

Using a manometer board to measure the vertical hydraulic gradient in an in-stream piezometer.

Study type: TMDL

This investigation will evaluate the surface water/groundwater interactions within the Upper Yakima watershed. In-stream piezometers are located within the Taneum, Umtanum, Naneum and Swauk creeks, and will be monitored monthly during the summer of 2005 for temperature, specific conductance, and static water level. Additionally, continuous monitoring instruments will record a profile of subsurface water temperature. The results of this study will support the temperature TMDL assessment for the Upper Yakima watershed.

Project lead: Melanie Redding
Phone: (360) 407-6524
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Document(s):
67

Lakewood Plaza Cleaners

An EA groundwater scientist samples a monitoring well at the Lakewood Plaza Cleaners site.

Study type: toxics

This project involves compliance ground water monitoring for volatile organic compounds at the Plaza Cleaners Lakewood site, near Lakewood, WA. This work is conducted on the behalf of the Toxics Cleanup Program.

Project lead: Pam Marti
Phone: (360) 407-6768
Make a request or comment

Document(s):
65

Shelton Laundry & Cleaners Groundwater Monitoring

Purging a Shelton monitoring well using low-flow methods

Study type: toxics

This project is located in Shelton, Washington (Mason County). Groundwater samples are being collected semi-annually to monitor concentrations of tetrachloroethylene (PCE) that continue to exceed the state Model Toxics Control Act (MTCA) cleanup level. Groundwater samples are collected for volatile organic compounds (VOC) from 5 monitoring wells. Results will be summarized in an annual report. The outcome of this work will determine if this site can be removed from the MTCA list.

Project lead: Pam Marti
Phone: (360) 407-6768
Make a request or comment

Document(s):
58

Fate of Nitrogen in Animal Manures used as Fertilizer

An EAP hydrogeologist preparing to measure water quality conditions in a monitoring well.

Study type: agricultural

The purpose of this study is to evaluate manure, groundwater, soil, and crop nitrogen at a field where dairy waste is used to fertilize grass in the Nooksack Basin. Since 2004, soil samples have been collected weekly during the fall and less frequently during the rest of the year to track mineralization, accumulation, and movement of nitrogen. Groundwater samples are collected monthly except in the summer when they are collected every six weeks. Manure and commercial fertilizer application are being quantified. Monitoring wells were installed in August 2004, and groundwater sampling began in September 2004. Data will be collected through December of 2008. A final report is scheduled for publication in April of 2012.

Project lead: Barb Carey
Phone: (360) 407-6769
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Document(s):
7

American Plating Groundwater Monitoring

Study type: toxics

This project is located at a former electroplating company in Tacoma, Washington (Pierce County) on the Thea Foss waterway. Groundwater samples are collected semi-annually to determine contaminant concentrations since the removal of plating line-derived waste material in the summer of 2003. Groundwater samples are collected from five monitoring wells for dissolved metals (cadmium, chromium, hexavalent chromium, copper and nickel), and weak acid dissociable (WAD) cyanide. Results are summarized in an annual report.

Project lead: Pam Marti
Phone: (360) 407-6768
Make a request or comment

Document(s):
For more information about the Environmental Assessment Program groundwater team activities, please contact: Martha Maggi (mmag461@ecy.wa.gov). For questions about this web page please contact Charles Pitz (chpi461@ecy.wa.gov).