City of Monte Vista
EPA ID: CO0153600 · 4,600 people served · 2 ZIP codes
Compliance tracking for City of Monte Vista shows 10 pending violations logged in the EPA system — the supplier delivers water to approximately 4,600 residents while those findings remain open.
Data: EPA SDWIS Last verified: 2026-04-02
Compliance Trajectory
Worsening · Risk tier: High · 95% chance of violation in next 12 months
Violations went from 1 (2024) to 1 (2026). The pattern suggests growing compliance challenges.
Service Area Map
Coverage area for City of Monte Vista Source: EPA SDWIS service area boundaries.
Service area boundary — Grade C
Service Area Demographics
The City of Monte Vista serves a community with a median household income of $61,554 and an estimated 6,677 residents across its service area. Approximately 69% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
Environmental Justice Note: 100% of the population in this service area is classified as disadvantaged under EPA's EJScreen criteria. Communities with higher disadvantaged populations often face disproportionate environmental and health burdens, including aging water infrastructure and limited resources for remediation.
💧 Where Does Your Water Come From?
City of Monte Vista's water is pumped from underground aquifers. Groundwater is naturally filtered through rock and soil, but it can be vulnerable to PFAS contamination, nitrates from agriculture, and industrial chemicals that seep into the water table.
About 1% of homes in Rio Grande County, Colorado rely on private wells rather than public water systems. Private well owners are responsible for their own water testing and treatment.
Wastewater Proximity Note: This service area ranks in the 70th percentile nationally for proximity to wastewater discharge points.
Infrastructure Risk
Detected Contaminants
How City of Monte Vista compares to EPA limits
What This Means For You
Consumer Confidence Report Rule at 11 mg/L exceeds the EPA maximum of mg/L.
Lead and Copper Rule at 8 mg/L exceeds the EPA maximum of mg/L.
Stage 1 DBP Rule at 2 mg/L exceeds the EPA maximum of mg/L.
Stage 2 DBP Rule at 2 mg/L exceeds the EPA maximum of mg/L.
Contaminant 2034 at 1 mg/L exceeds the EPA maximum of mg/L.
Comparable Water Systems
Similar-sized systems in Colorado
Estimated Remediation Costs
Average estimated costs across ZIP codes served by this system
Based on national averages for common remediation projects. Actual costs vary by property. Only issues flagged by EPA, FEMA, or state data for each ZIP code are included.
System Overview
MONTE VISTA CITY OF (EPA ID: CO0153600) is a community water system in Colorado that serves approximately 4,600 people from groundwater sources.
This system provides water to 2 ZIP codes across 2 communities.
Average Home Safety Score: C (63/100)
Based on water quality violations, lead levels, and radon risk across all ZIP codes served by this system.
Violation History
Recent Violations
| Date | Contaminant | Type | Status |
|---|---|---|---|
| September 11, 2025 | Lead and Copper Rule | Monitoring | Resolved |
| August 24, 2025 | Lead and Copper Rule | Monitoring | Resolved |
| July 20, 2025 | Lead and Copper Rule | Monitoring | Resolved |
| July 2, 2025 | Stage 2 DBP Rule | Health-based | Unresolved |
| July 2, 2025 | Stage 2 DBP Rule | Monitoring | Unresolved |
| July 1, 2025 | Stage 1 DBP Rule | Monitoring | Unresolved |
| July 1, 2025 | Consumer Confidence Report Rule | Monitoring | Resolved |
| July 1, 2025 | Contaminant 2034 | Monitoring | Resolved |
| July 1, 2025 | Barium | Health-based | Unresolved |
| June 11, 2025 | Lead and Copper Rule | Monitoring | Unresolved |
| June 5, 2025 | Lead and Copper Rule | Monitoring | Unresolved |
| June 1, 2025 | Consumer Confidence Report Rule | Monitoring | Resolved |
| May 1, 2025 | Chlorine residual | Health-based | Resolved |
| May 1, 2025 | Consumer Confidence Report Rule | Monitoring | Resolved |
| April 20, 2025 | Lead and Copper Rule | Monitoring | Unresolved |
| April 1, 2025 | Consumer Confidence Report Rule | Monitoring | Resolved |
| April 1, 2025 | Contaminant 2959 | Monitoring | Resolved |
| March 1, 2025 | Consumer Confidence Report Rule | Monitoring | Resolved |
| January 19, 2025 | Total Coliform | Monitoring | Resolved |
| January 11, 2025 | Consumer Confidence Report Rule | Monitoring | Unresolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Consumer Confidence Report Rule | Reporting Failure | 11 | No |
| Lead and Copper Rule | Treatment Failure | 8 | No |
| Stage 1 DBP Rule | Treatment Failure | 2 | No |
| Stage 2 DBP Rule | Treatment Failure | 2 | Yes |
| Chlorine residual | Disinfectant | 2 | Yes |
| Barium | Inorganic | 1 | Yes |
| Copper | Inorganic | 1 | No |
| Contaminant 2034 | Other Violation | 1 | No |
| Contaminant 2046 | Other Violation | 1 | No |
| Contaminant 2959 | Other Violation | 1 | No |
| Total Organic Carbon | Disinfection Byproducts | 1 | No |
| Total Coliform | Microbiological | 1 | No |
Health Risk Details
Chlorine (Residual Disinfectant) (EPA limit: 4 mg/L (MRDL — Maximum Residual Disinfectant Level))
Irritation & DBP formation at high levels; protective at normal treatment levels At-risk groups: people with asthma or chemical sensitivities, kidney dialysis patients (water must be dechlorinated).
Removal methods: granular activated carbon (GAC), KDF media filter, carbon block filter. Find the right filter →
Lead & Copper
EPA Lead and Copper Rule sampling data for ZIP codes served by this system:
| ZIP Code | Lead Level | Exceeds Limit | Sample Date |
|---|---|---|---|
| 81144 | 0.001 mg/L | No | N/A |
Radon Risk in Service Area
Dominant radon zone for ZIP codes served by this system: Zone 2 (Moderate Risk)
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Need help with your water quality?
Typical cost: Water test: typically $20–$50 (DIY kit) · Professional inspection: $150–$400
Find the Right Water FilterFree tip: Let cold water run for 2 minutes before drinking — this helps flush lead from your pipes.
ZIP Codes Served
Coverage: 1 ZIP code confirmed via EPA Community Water System Service Area Boundaries v3 plus 1 additional ZIP inferred from SDWIS registry data. The EPA-confirmed set is the most reliable; SDWIS-inferred entries may be narrower than the real deployment area.
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for City of Monte Vista (CO0153600) on EPA.gov.
Frequently Asked Questions
Is City of Monte Vista water safe to drink?
City of Monte Vista has recorded 4 health-based violations in the past 5 years. While the system is required to treat water to meet federal standards, you may want to consider additional precautions such as a certified water filter.
How many people does City of Monte Vista serve?
City of Monte Vista serves approximately 4,600 people across 2 ZIP codes in Colorado.
Where does City of Monte Vista get its water?
The primary water source is groundwater.
Federal UCMR5 PFAS Monitoring: Tested Clean
This water system was tested under the federal EPA Unregulated Contaminant Monitoring Rule (UCMR5). No PFAS compounds were detected.
Current MCL reflects the lowest state-enforceable limit (NYS 10 ppt for PFOA/PFOS, effective August 2020). The federal final MCL of 4 ppt for PFOA/PFOS (EPA April 2024 rule) is not enforceable until April 2029. Detections above 4 ppt but below 10 ppt are below current MCL but above the future federal limit.
Source: U.S. EPA UCMR5 (Unregulated Contaminant Monitoring Rule, 5th cycle) — per-system federal sampling, 2023–2025. EPA UCMR5 monitoring program →
Lead Service Line Inventory
Service line breakdown reported under the federal Lead and Copper Rule Improvements (LCRI) inventory requirement:
This system reports zero confirmed lead service lines in its inventory. Unknown-material counts may still warrant verification.
Federal LCRI rule (effective October 2024) requires every public water system to inventory its service lines and complete lead-line replacement within 10 years.
Source: EPA SDWIS Federal Service Line Inventory (Phase 2) · Submitted 2026
ZipCheckup is not affiliated with the utility or state agency. Inventory figures render verbatim from the public LCRI submission cited above; ZipCheckup does not perform inspections or replacements.
How Water Systems Appear in Rankings
Water systems are evaluated by violation history, contaminant detections, and service population. Larger systems with more service connections appear in more rankings.
Frequently Asked Questions
What You Can Do
Test your water
Home test kits can detect lead, bacteria, and other contaminants at your tap. Find the right filter →
Check your specific ZIP code
Water quality can vary within a system. View nearest ZIP report →
Contact your utility
City of Monte Vista (EPA ID: CO0153600) — request the latest Consumer Confidence Report or ask about specific contaminants.