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| Title | Chehalis Best Management Practices Evaluation Project, Report on the Black River Project Area | |||
| Month-Year Published | June 1996 | |||
| Online Availability |
1112 kilobytes, requires version 4.0 or later of Adobe Acrobat Reader Software get Acrobat Reader
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| Short Description |
This report describes surface water monitoring results for best management practices (BMP) implementation at the Black River Ranch, located in southwestern Thurston County. Sampling was done from river mile (RM) 11.8 to 13.2. Implementation of BMPs occurred from 1991 to 1995, including installation of a waste management system with a solids separator and over-winter storage pond; application of waste at agronomic rates; herd-size reduction; and water conservation practices. The overall study design includes dry season pre\post monitoring and dry and wet season upstream\downstream water quality monitoring. (Also see abstract below) | |||
| Publication Number | 96-325 | |||
| Author(s) | Sargeant, D. | |||
| Print Availability | ||||
| Number of pages | 22 pp. | |||
| Keywords | ammonia, best management practice, conductivity, county, evaluation, fecal coliform, implementation, nitrogen, phosphorus, report , river, sampling, SEPA, soil, stream, study, Thurston, waste, water, Water Quality | |||
| Subject Waterbodies |
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| Abstract | Long Description |
This report describes surface water monitoring results for best management practices (BMP) implementation at the Black River Ranch, located in southwestern Thurston County. Sampling was done from river mile (RM) 11.8 to 13.2. Implementation of BMPs occurred from 1991 to 1995, including installation of a waste management system with a solids separator and over-winter storage pond; application of waste at agronomic rates; herd-size reduction; and water conservation practices. The overall study design includes dry season pre\post monitoring and dry and wet season upstream\downstream water quality monitoring. In comparing 1994 dry season results to data collected in 1991 and 1992, the downstream deep water station showed continued improvements in water quality over 1991 conditions, confirming improvements seen in 1992. Dry season levels of conductivity, turbidity, ammonia, total persulfate nitrogen, and total phosphorus have dramatically declined since 1991. The 1994-95 wet season sampling showed higher levels of ammonia, turbidity, and conductivity at a tributary draining the Black River Ranch, in comparison to the two Black River stations. All three sites did not meet fecal coliform criteria. Additional post-BMP monitoring is recommended after BMPs have been implemented long enough to be effective, and on-site soils have recovered. |
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