Drinking Water Compliance OS

DES PERES, AZ · Pima County

CS LOS CERROS WATER COMPANY INC Water System

Current status

No open violations on record as of July 4, 2026.

This system's next federally required Consumer Confidence Report is due July 1, 2027, under the EPA's revised reporting rule.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 2026. This is a record-keeping and public-information tool — it does not replace Arizona’s official records. Always confirm current status with Arizona before making decisions based on this information.

System facts

System ID (PWSID)
AZ0410128
System type
Community Water System
Population served
2,613
Service connections
902
Ownership
privately owned
Water source
groundwater (wells)

Violation history

  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    November 1, 1991 – November 30, 1991

    Archived
  • Monitoring, Regular

    Nitrate

    May 31, 1988 – May 30, 1991

    Archived
  • Monitoring, Regular

    Barium

    May 31, 1988 – May 30, 1991

    Archived
  • Monitoring, Regular

    Chromium

    May 31, 1988 – May 30, 1991

    Archived
  • Monitoring, Regular

    Selenium

    May 31, 1988 – May 30, 1991

    Archived
  • Monitoring, Regular

    Cadmium

    May 31, 1988 – May 30, 1991

    Archived
  • Monitoring, Regular

    Mercury

    May 31, 1988 – May 30, 1991

    Archived
  • Monitoring, Regular

    Fluoride

    May 31, 1988 – May 30, 1991

    Archived
  • Monitoring, Regular

    Arsenic

    May 31, 1988 – May 30, 1991

    Archived
  • Monitoring, Regular

    Trichloroethylene

    January 1, 1987 – January 1, 1992

    Archived
  • Monitoring, Regular

    1,1,2-Trichloroethane

    January 1, 1987 – January 1, 1992

    Archived
  • Monitoring, Regular

    Tetrachloroethylene

    January 1, 1987 – January 1, 1992

    Archived
  • Monitoring, Regular

    cis-1,2-Dichloroethylene

    January 1, 1987 – January 1, 1992

    Archived
  • Monitoring, Regular

    Toluene

    January 1, 1987 – January 1, 1992

    Archived
  • Monitoring, Regular

    Ethylbenzene

    January 1, 1987 – January 1, 1992

    Archived
  • Monitoring, Regular

    CHLOROBENZENE

    January 1, 1987 – January 1, 1992

    Archived
  • Monitoring, Regular

    DICHLOROMETHANE

    January 1, 1987 – January 1, 1992

    Archived
  • Monitoring, Regular

    o-Dichlorobenzene

    January 1, 1987 – January 1, 1992

    Archived
  • Monitoring, Regular

    p-Dichlorobenzene

    January 1, 1987 – January 1, 1992

    Archived
  • Monitoring, Regular

    1,1-Dichloroethylene

    January 1, 1987 – January 1, 1992

    Archived
  • Monitoring, Regular

    1,2-Dichloroethane

    January 1, 1987 – January 1, 1992

    Archived
  • Monitoring, Regular

    1,1,1-Trichloroethane

    January 1, 1987 – January 1, 1992

    Archived
  • Monitoring, Regular

    Carbon tetrachloride

    January 1, 1987 – January 1, 1992

    Archived
  • Monitoring, Regular

    1,2-Dichloropropane

    January 1, 1987 – January 1, 1992

    Archived
  • Monitoring, Regular

    Gross Alpha, Excl. Radon and U

    July 1, 1980 – June 30, 1984

    Archived

Archived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

Contact

KRIESS, FRED

602-698-9786

DES PERES, MO 63131