Reference

The primary chemical concentration ranges found in Bowman Creek, based on the search results, include:

1. Nutrient Concentrations: The mean concentration ranges for NH4-N (ammonium), (NO2 + NO3)-N (nitrate), PO4-P (phosphorus), and SiO2-Si (silica) were reported to be between 0.002–0.012 mg/L, 0.010–0.170 mg/L, 0.001–0.006 mg/L, and 1.0–2.5 mg/L, respectively. Source

2. Sulfate and Bicarbonate Concentrations: In 2000-2001, sulfate concentration ranges were nearly double the 1994-1995 concentrations, while bicarbonates were only slightly higher. Source

These concentration ranges provide a general overview of the chemical composition of Bowman Creek. For more detailed and specific data, further studies and reports would be required.