WATERS Collaborative Water Quality Project
Background Data
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Copeland Creek Watershed Assessment (Sotoyome)
o WQ in two areas of creek: 3 sites in headwaters and 2 sites on alluvial fan
o 2004 June-September; 1/month; DO, temperature, ammonia, nitrate, phosphate
and pH (using Chemettes kits and Winkler kits: Tables 14 and 15 (p 90); Table 16 (p
94)
o GPS coordinates and rebar
Sotoyome RCD
o Pressley Road restoration project (Sotoyome RCD is lead; STRAW, S. Sonoma RDC)
o Water quality monitoring element (phosphorus and nitrogen) Contact: Kevin
Cullinen
City of Rohnert Park
o Human Marker/Water Quality Study: First flush data
 2002-03: (in CC Watershed Assessment p. 95); 3 sites – CC at Commerce (2
samples); CC at Country Club
Chris Peterson, a biology teacher at Rancho Cotati H.S.. – “for years, his students took water
samples of Copeland Creek” (Julie Bright)
Maps
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City of Rohnert Park
o City Drainage Map
Copeland Creek Watershed Assessment Figure 4. Copeland Creek Drainage Network (p. 11)
Flow accumulation map (fr. Mike Smith GIS analysis)
Other Data
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City of Rohnert Park
o Drinking water data (mixture of well water and SCWA RR water): http://www.ci.rohnertpark.ca.us/index.aspx?page=201
o NPDES Ph. 2 Permit (does not include surface water or outfall monitoring)
o GIS Storm drain model available. It doesn’t have catch basins and outfall locations. It shows
(modeled) flow from the City’s subwatersheds. It probably would have been what the 2009
water quality study used to overlay on top of a sewer collection system map.
Sonoma County Water Agency – find out if they collect data at stream gauges Contacts:
Keenan Foster; Jon Niehaus
SSU Campus – drinking water analyses only? Reports available on line
North Coast Water Quality Control Board – benchmark data?
Previous Variables Measured
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stream height
specific conductivity
% slope
% canopy cover
watershed drainage area
air temperature
water temperature
% oxygen saturation
conductivity
turbidity
pH
DO
TSS
TDS
total nitrogen
total phosphorus
dissolved phosphorus
nitrate
nitrite
total Kjeldahl nitrogen (TKN)
ammonia
orthophosphate
total and fecal coliform
E. coli
Enterococcus
biological oxygen demand (BOD)
diazinon