Temecula Valley RWRF 23-MGD Expansion

Project
Summary

Eastern Municipal Water
District/Vali Cooper & Associates,
Inc. (2016-2022)
Modifications to the existing EMWD TVRWRF in Temecula, California to increase the treatment capacity from 18 million gallons per day to 23 million gallons per day. Specific site improvements included:
  • Headworks Expansion
  • Primary Clarifiers
  • Secondary Clarifiers
  • Chlorine Contact Basin
  • Stormwater Channel Upgrade
  • Blower Building
  • Aeration Basin
  • Tertiary Filters
  • WAS Thickening Chamber
  • Airline Replacement

IFE Role

IFE performed the design-level geotechnical investigations for the proposed treatment plant improvements. The primary issues requiring mitigation were related to undocumented fill, and expansive soil and corrosive soil. IFE provided soils and materials testing services during project construction. Our services include:
  • Geologic approval of excavation bottoms in bedrock formation
  • Compaction testing of equalization basin embankment fill, liner subgrade, Class 2 permeable base, pipe bedding and pipe trench backfill
  • Sieve analysis, sand equivalent and maximum density tests of trench backfill and imported pipe bedding
  • Concrete cylinder compression tests