Drinking Water Compliance OS

TUCSON, AZ · Pima County

NORTH LA CHOLLA MHP 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)
AZ0420043
System type
Community Water System
Population served
150
Service connections
50
Ownership
public/private mix
Water source
groundwater (wells)

Violation history

  • Monitoring, Regular

    1,1,2-Trichloroethane

    July 1, 2019 – September 30, 2019

    Resolved
  • Monitoring, Regular

    Ethylbenzene

    July 1, 2019 – September 30, 2019

    Resolved
  • Monitoring, Regular

    Carbon tetrachloride

    April 1, 2019 – June 30, 2019

    Resolved
  • Monitoring, Regular

    Fluoride

    April 1, 2002 – June 30, 2002

    Resolved
  • Monitoring, Regular

    Arsenic

    October 31, 1989 – October 30, 1992

    Archived
  • Monitoring, Regular

    Cadmium

    October 31, 1989 – October 30, 1992

    Archived
  • Monitoring, Regular

    Chromium

    October 31, 1989 – October 30, 1992

    Archived
  • Monitoring, Regular

    Selenium

    October 31, 1989 – October 30, 1992

    Archived
  • Monitoring, Regular

    Nitrate

    July 1, 1989 – September 30, 1989

    Archived
  • Monitoring, Regular

    Selenium

    July 1, 1989 – September 30, 1989

    Archived
  • Monitoring, Regular

    Cadmium

    July 1, 1989 – September 30, 1989

    Archived
  • Monitoring, Regular

    Chromium

    July 1, 1989 – September 30, 1989

    Archived
  • Monitoring, Regular

    Fluoride

    July 1, 1989 – September 30, 1989

    Archived
  • Monitoring, Regular

    Mercury

    July 1, 1989 – September 30, 1989

    Archived
  • Monitoring, Regular

    Barium

    July 1, 1989 – September 30, 1989

    Archived
  • Monitoring, Regular

    Gross Alpha, Excl. Radon and U

    November 29, 1986 – November 28, 1990

    Archived
  • Monitoring, Regular

    Arsenic

    September 12, 1986 – September 10, 1989

    Archived

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

Contact

NEWTON, DEAN

520-888-3883

TUCSON, AZ 85705