A
100

US Water Score: A

Monte Vista, CO 81144

Rio Grande County · Population served: 4,600 · Data updated July 2026

Service-area evidence: EPA service-area records associate the listed system with this ZIP. Boundaries may still overlap or change.

Water Systems Serving This Area

🌊
MONTE VISTA CITY OF
Groundwater · Pop. 4,600
PWSID: CO0153600
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PACHECO TRAILER PARK
Groundwater · Pop. 36
PWSID: CO0153400

Contaminants Detected

ContaminantDetected LevelEPA MCLHealth GuidelineStatus
Lead
0.0
15 ppb 1 ppb Passed

Violation History (Last 5 Years)

683Total (5yr)
6Health-Based
658Major

Water Quality Summary

Understanding Your Water in Monte Vista

Tap water quality in Monte Vista, Colorado (81144) receives an overall grade of A (Lower record-based concern) with a score of 100 out of 100, based on analysis of EPA compliance data, contaminant testing, and violation history. This is 32 points above the Colorado state average of 68. Compared to the national average (75), this area performs significantly better. The area is served by 2 water systems providing water to approximately 4,600 people, using groundwater sources. Over the past 5 years, water systems here have accumulated 683 violations, including 6 health-based violations.

Your Score 100/100 A
vs State 32 pts above Colorado avg (68)
vs National 25 pts above national avg (75)

What a Grade A Means

A score of 100/100 means public water-system records for Monte Vista, CO show relatively few concerns in the US Water Score model. This is an internal score, not an EPA safety rating, and it does not guarantee conditions at any specific tap.

Groundwater: drawn from underground aquifers via wells

Health Information

What These Contaminants Mean for You

⚠️

Lead in Your Water

Lead is a toxic metal that can leach from aging pipes and plumbing fixtures.

Health Effects

Even low levels of lead exposure can cause developmental delays in children, kidney damage, and cardiovascular effects in adults. The EPA action level is 15 ppb, but health experts recommend no safe level of lead in drinking water.

Common Sources

Lead enters water primarily through corrosion of lead service lines, lead solder, and brass fixtures — especially in homes built before 1986.

What You Can Do

If lead is detected above 1 ppb, consider using a certified lead-removal filter (NSF/ANSI 53) for drinking and cooking water. Run cold water for 30 seconds before use if water has been sitting in pipes.

Common Questions

Frequently Asked Questions

Based on public water-system records, Monte Vista, Colorado receives an internal US Water Score grade of A (Lower record-based concern) with a score of 100/100. This indicates relatively few system-level concerns in our model, but it is not an EPA safety rating and does not guarantee tap conditions inside individual homes.

ZIP code 81144 is served by 2 water systems using groundwater sources, providing water to approximately 4,600 people. Groundwater is naturally filtered through rock and soil, often requiring less treatment. However, it can be vulnerable to contamination from underground sources like naturally occurring arsenic, nitrates from agriculture, or PFAS from industrial sites.

Lead levels in Monte Vista, Colorado are 0.0 ppb, which is at or below the health guideline of 1 ppb. This is a positive result, though periodic testing is still recommended.

No PFAS ("forever chemicals") were detected in water systems serving Monte Vista, Colorado during the most recent EPA monitoring period (UCMR5). However, not all water systems have been tested for all PFAS compounds, and new contamination can occur over time.

Water systems serving Monte Vista, Colorado have received 683 violations in the last 5 years, including 6 health-based violations. Violations can range from paperwork issues (monitoring & reporting) to serious health-based violations where contaminant levels exceeded safe limits. Review the violation details above for specifics.

Water in Monte Vista, Colorado shows no major contaminant concerns based on available data. A basic carbon filter can improve taste and reduce chlorine. For extra peace of mind, an NSF-certified pitcher filter or faucet-mount filter provides an affordable layer of protection.

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