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Ecology Publications & Forms |
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Ecology Publications & Forms |
| Title | Hangman (Latah) Creek Hydrogeologic Assessment, Focusing on the Latah Creek Wastewater Treatment Plant |
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Hangman (Latah) Creek Hydrogeologic Assessment, Focusing on the Latah Creek Wastewater Treatment Plant (Number of pages: 84) (Publication Size: 3228KB)
Microsoft Excel format (Publication Size: 29KB) Note: TABLE A.2
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| Author(s) | Redding, M. | ||||
| Description | Hangman Creek (aka. Latah Creek) is a tributary to the Spokane River. There are concerns about nitrogen and phosphorous contributions from groundwater impacting surface water. The Department of Ecology conducted water quality sampling near the Latah Creek Wastewater Treatment Plant (WWTP) to determine if contaminants were present in groundwater and impacting Hangman Creek. Samples were collected on three dates (Aug 2010, July 2012, Sept 2012) during the summer low-flow season. These samples were analyzed for nitrate, ammonia, orthophosphate, total dissolved phosphorous, and other indicator parameters. This study found many of these contaminants in groundwater but determined they were not causing increases in surface water concentrations. Analysis of indicator parameters supports that groundwater is not impacting surface water near the WWTP. Hangman Creek was determined to be a gaining reach at all sampling sites during each of the three sampling dates. Table A.2 in Appendix A is linked to this report above, as "Microsoft Excel format." |
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The mission of the Department of Ecology is to protect, preserve, and enhance Washington’s environment. To help us meet that goal, please consider the environment before you print or request a copy.
ADA Accessibility The Department of Ecology is committed to providing people with disabilities access to information and services by meeting or exceeding the requirements of the Americans with Disabilities Act (ADA), Section 504 and 508 of the Rehabilitation Act, and Washington State Policy #188. Visit Ecology’s website for more information. |
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| Contact | Melanie Redding at 360-407-6764 or mkim461@ecy.wa.gov | ||||
| Keywords | Hangman Creek, nutrients, groundwater monitoring, nitrogen, phosphorus, groundwater, Latah | ||||
| WEB PAGE | Hangman Creek multi-parameter TMDL | ||||
| WATERSHED | Water Resource Inventory Area 56 Hangman | ||||
| DATA | Environmental Information Management (EIM) #MRED0002 |
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| RELATED PUBLICATIONS | Title:
Quality Assurance Project Plan: Hangman Hills Sewage Treatment Plant Nutrient Loading and Groundwater Study Quality Assurance Project Plan: Sumas-Blaine Surficial Aquifer Long-Term Ambient Groundwater Monitoring |
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