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Public Water System

BIG PARK WATER COMPANY

PWSID AZ0413012 · Arizona · 7,392 people served

F
Failing

BIG PARK WATER COMPANY is an EPA-regulated public water system in Arizona (PWSID AZ0413012). It serves an estimated 7,392 residents — a small town of customers — across 1 community across 1 ZIP code.

Over the past five years, BIG PARK WATER COMPANY has recorded 28 EPA health-based violations. The grade of F summarizes this compliance pattern. Specific contaminants, dates, and rule citations are listed in the violation history below.

Service Area

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Centered on the averaged ZIP-code centroid of 1 ZIP served.

Population

7,392

Cities

1

ZIPs

1

Violations

28

EPA Health-Based Violations

Health-based Maximum Contaminant Level (MCL) violations on file for BIG PARK WATER COMPANY over the past five years of EPA SDWIS reporting.

EPA Code 8000 · Treatment Technique Violation

5

violations

EPA Limit

0 per 100 mL presence/absence

Last Reading

First Reported

Jul 2023

Most Recent

Nov 2025

What this violation means

Total coliform bacteria are themselves usually harmless, but their presence signals that the water distribution system has a vulnerability — typically a cracked pipe, loss of pressure, or back-siphonage — that could allow disease-causing pathogens to enter. Repeated coliform-positive samples trigger mandatory utility investigation.

Recommended precautions

  • If your utility issues a boil-water advisory, boil all drinking and cooking water for at least one minute.
  • Use bottled water until the advisory is lifted.
  • Ice from icemakers and beverages made before the advisory should be discarded.
  • UV light and chlorination both kill coliform bacteria — most home filters do not.
Arsenicchemical

EPA Code 1005 · Maximum Contaminant Level Exceedance

23

violations

EPA Limit

0.01 mg/L

Last Reading

.011 MG/L

First Reported

Jan 2024

Most Recent

Oct 2024

What this violation means

Arsenic is a known human carcinogen that occurs naturally in groundwater across many parts of the United States, especially the Southwest and parts of New England. Long-term exposure even at low levels has been linked to bladder, lung, and skin cancer, as well as cardiovascular disease and developmental effects in children.

Recommended precautions

  • Reverse osmosis filtration removes arsenic effectively.
  • Distillation also removes arsenic — point-of-use distillers work for drinking and cooking water.
  • Boiling does NOT remove arsenic. It actually concentrates it as water evaporates.
  • If your well water has arsenic, test annually and treat at the point of entry.

Source: EPA Safe Drinking Water Information System (SDWIS). Health-based violations only. Older violations may have been resolved; check your utility's most recent Consumer Confidence Report for current status.

Cities Served by BIG PARK WATER COMPANY

ZIP Codes Served

About this system

EPA records this system as PWSID AZ0413012. Data reflects the most recent EPA SDWIS publication as of 2026-05-18. Public Water System Identifiers (PWSIDs) are assigned by the EPA's Safe Drinking Water Act program to track every regulated water utility in the United States. The first two letters typically indicate the state primacy agency. For real-time water quality information, contact BIG PARK WATER COMPANY directly or review their annual Consumer Confidence Report (CCR).

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