Public Water System

WALSH TOWN OF

PWSID CO0105900 · Colorado · 650 people served

Failing

WALSH TOWN OF is an EPA-regulated public water system in Colorado (PWSID CO0105900). It serves an estimated 650 residents — a rural community of customers — across 1 community across 1 ZIP code.

Over the past five years, WALSH TOWN OF has recorded 58 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

650

Cities

ZIPs

Violations

EPA Health-Based Violations

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

Nitratechemical

EPA Code 1040 · Maximum Contaminant Level Exceedance

violations

EPA Limit

10 mg/L

Last Reading

11.3 MG/L

First Reported

Oct 2022

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.

Read the complete guide to Nitrate

Radiumradiological

EPA Code 4010 · Maximum Contaminant Level Exceedance

violations

EPA Limit

5 pCi/L

Last Reading

6 PCI/L

First Reported

Jul 2021

Most Recent

Jul 2025

What this violation means

Radium-226 and Radium-228 occur naturally in groundwater, particularly in regions with granite or sandstone aquifers. Long-term ingestion increases the risk of bone, sinus, and other cancers because radium concentrates in bone tissue.

Recommended precautions

→Reverse osmosis and ion exchange (water softeners) remove radium.
→Boiling does NOT remove radium and may concentrate it.
→Private well users in radium-rich geology should test every 3–5 years.

Read the complete guide to Radium

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 WALSH TOWN OF

WALSH

ZIP Codes Served

81090

About this system

EPA records this system as PWSID CO0105900. 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 WALSH TOWN OF directly or review their annual Consumer Confidence Report (CCR).