Patterson Valley Water Company - Filtration Improvement

Rocky Ford, CO
The Patterson Valley Water Company is located in Otero County, Colorado. The company serves approximately 40 customers and is currently under a compliance violation of the Radionuclide Rule. 

In 1999, EPA introduced the Radionuclide Rule. The limits for combined radium and gross alpha were set at 5 pCi/L and 15 pCi/L respectively. 

​Bai Engineers (BE) was selected to perform a pilot study and design a new water treatment system. The designed system is capable of treating 40 gpm. 

Completion Date: March 2016
Key untreated water quality parameters are:
  • Turbidity < 15 NTU
  • TOC < 2 mg/L
  • Iron < 5 mg/L
  • Manganese < 1.5mg/L

Major treatment process included:
  • Chlorine and KMnO4 coagulation
  • Greensand filtration
BE is also retained to apply the small
community grant.
BE Role:
Pilot testing, grant application, and process design including hydraulic profile, unit process, and plan and specification submittal.