Fishtrap Creek Watershed
The Fishtrap Creek watershed, tributary to the Nooksack River in northwestern Washington, is dominated by dairy farming. Fifteen sites in mainstem Fishtrap Creek and its tributaries were surveyed for conventional water quality parameters six times between September 1993 and January 1994. The water quality investigation results showed high to very high levels of fecal coliformbacteria associated with feces that indicate the likelihood that drinking water will cause a bacterial infection. bacteria throughout the watershed (as high as 880,000 organisms/100 mL), low levels of dissolved oxygenthe level of oxygen gas present in water, indicating its ability to support aquatic life. in the small tributaries (as low as 2.2 mg/L), and one instance of very high ammonia levels (19.2 mg/L NH3-N).
Ecology's 1996 TMDL for fecal - https://fortress.wa.gov/ecy/publications/publications/95328.pdf