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Public Water System

MARTINEZ APARTMENTS

PWSID CA3900751 · California · 26 people served

F
Failing

MARTINEZ APARTMENTS is an EPA-regulated public water system in California (PWSID CA3900751). It serves an estimated 26 residents — a rural community of customers — across 1 community across 1 ZIP code.

Over the past five years, MARTINEZ APARTMENTS has recorded 23 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

26

Cities

1

ZIPs

1

Violations

23

EPA Health-Based Violations

Health-based Maximum Contaminant Level (MCL) violations on file for MARTINEZ APARTMENTS over the past five years of EPA SDWIS reporting.

Nitratechemical

EPA Code 1040 · Maximum Contaminant Level Exceedance

12

violations

EPA Limit

10 mg/L

Last Reading

11 MG/L

First Reported

Jan 2023

Most Recent

Oct 2025

What this violation means

Nitrate contamination is most acute in agricultural regions where fertilizer and animal waste leach into groundwater. The immediate risk is to formula-fed infants under 6 months — high nitrate levels prevent their blood from carrying oxygen, causing 'blue baby syndrome.' Pregnant women should also avoid high-nitrate water.

Recommended precautions

  • Never give untreated high-nitrate water to infants — use bottled water for formula.
  • Boiling does NOT remove nitrate. Boiling concentrates it.
  • Reverse osmosis, ion exchange, or distillation are the only effective home treatments.
  • Private well owners in farming areas should test annually for nitrate.
Arsenicchemical

EPA Code 1005 · Maximum Contaminant Level Exceedance

11

violations

EPA Limit

0.01 mg/L

Last Reading

15 UG/L

First Reported

Apr 2023

Most Recent

Oct 2025

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 MARTINEZ APARTMENTS

ZIP Codes Served

About this system

EPA records this system as PWSID CA3900751. 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 MARTINEZ APARTMENTS directly or review their annual Consumer Confidence Report (CCR).

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