Upper Surface Creek Domestic Wua
EPA ID: CO0115784 · 2,800 people served · 2 ZIP codes
Upper Surface Creek Domestic Wua's current EPA file includes 14 unresolved violations — every outstanding finding is documented in federal records for this utility, which supplies water to approximately 2,800 residents across its service territory.
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 4 (2022) to 2 (2026). The pattern suggests growing compliance challenges.
Service Area Map
Coverage area for Upper Surface Creek Domestic Wua Source: EPA SDWIS service area boundaries.
Service area boundary — Grade C
Service Area Demographics
The Upper Surface Creek Domestic Wua serves a community with a median household income of $57,292 and an estimated 8,766 residents across its service area. Approximately 62% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
Environmental Justice Note: 71% 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?
Upper Surface Creek Domestic Wua's water is drawn from rivers, lakes, or reservoirs. Surface water sources are more exposed to agricultural runoff, stormwater, and upstream discharges, but they typically receive more intensive treatment before reaching your tap.
About 3% of homes in Delta County, Colorado rely on private wells rather than public water systems. Private well owners are responsible for their own water testing and treatment.
Infrastructure Risk
Detected Contaminants
How Upper Surface Creek Domestic Wua compares to EPA limits
What This Means For You
Atrazine at 4 mg/L exceeds the EPA maximum of 0.003 mg/L. Endocrine disruption, cardiovascular & reproductive effects. Consider granular activated carbon (GAC) filtration.
Total Trihalomethanes (TTHM) at 5 mg/L exceeds the EPA maximum of 0.08 mg/L. Bladder & rectal cancer risk; reproductive concerns. Consider granular activated carbon (GAC) filtration.
E. coli at 25 Zero tolerance (any positive sample triggers immediate action) exceeds the EPA maximum of Zero tolerance (any positive sample triggers immediate action). Severe GI illness; potentially fatal kidney failure in children. Consider UV disinfection (99.99%) filtration.
Fecal Coliform at 20 presence exceeds the EPA maximum of presence.
Haloacetic Acids (HAA5) at 1 mg/L exceeds the EPA maximum of 0.06 mg/L. Cancer risk; reproductive & developmental effects. Consider granular activated carbon (GAC) filtration.
Atrazine was detected in this water system. granular activated carbon (GAC) filtration can reduce exposure.
Find a certified water filter →Comparable Water Systems
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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
Upper Surface Creek Domestic Wua (EPA ID: CO0115784) is a community water system in Colorado that serves approximately 2,800 people from surface water sources.
This system provides water to 2 ZIP codes across 2 communities.
Average Home Safety Score: C (58/100)
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 5, 2025 | Lead and Copper Rule | Monitoring | Unresolved |
| August 31, 2025 | Lead and Copper Rule | Monitoring | Unresolved |
| August 1, 2025 | E. coli | Monitoring | Resolved |
| August 1, 2025 | Fecal Coliform | Monitoring | Resolved |
| July 1, 2025 | E. coli | Monitoring | Resolved |
| July 1, 2025 | Fecal Coliform | Monitoring | Resolved |
| July 1, 2025 | Consumer Confidence Report Rule | Health-based | Resolved |
| July 1, 2025 | Stage 1 DBP Rule | Monitoring | Unresolved |
| July 1, 2025 | Stage 1 DBP Rule | Health-based | Unresolved |
| May 21, 2025 | Lead and Copper Rule | Monitoring | Unresolved |
| April 12, 2025 | Lead and Copper Rule | Monitoring | Unresolved |
| April 1, 2025 | E. coli | Monitoring | Resolved |
| April 1, 2025 | Fecal Coliform | Monitoring | Resolved |
| April 1, 2025 | Consumer Confidence Report Rule | Monitoring | Resolved |
| April 1, 2025 | Revised Total Coliform Rule | Monitoring | Resolved |
| March 1, 2025 | Stage 1 DBP Rule | Health-based | Resolved |
| February 21, 2025 | Lead and Copper Rule | Monitoring | Unresolved |
| January 1, 2025 | Consumer Confidence Report Rule | Monitoring | Unresolved |
| January 1, 2025 | Consumer Confidence Report Rule | Monitoring | Resolved |
| January 1, 2025 | E. coli | Monitoring | Resolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| E. coli | Microbiological | 25 | No |
| Fecal Coliform | Microbiological | 20 | No |
| Consumer Confidence Report Rule | Reporting Failure | 9 | Yes |
| Stage 1 DBP Rule | Treatment Failure | 8 | Yes |
| Revised Total Coliform Rule | Microbiological | 6 | No |
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 5 | Yes |
| Lead and Copper Rule | Treatment Failure | 5 | No |
| Atrazine | Organic | 4 | Yes |
| Total Coliform | Microbiological | 4 | No |
| Total Organic Carbon | Disinfection Byproducts | 2 | No |
| Stage 2 DBP Rule | Treatment Failure | 2 | Yes |
| Contaminant 1008 | Other Violation | 1 | No |
| Haloacetic Acids (HAA5) | Disinfection Byproducts | 1 | No |
| Trichloroacetic Acid | Disinfection Byproducts | 1 | No |
| Contaminant 0700 | Other Violation | 1 | Yes |
Health Risk Details
Total Trihalomethanes (TTHM) (EPA limit: 0.08 mg/L)
Bladder & rectal cancer risk; reproductive concerns At-risk groups: pregnant women, long-term consumers of chlorinated water, people who frequently shower in chlorinated water.
Removal methods: granular activated carbon (GAC), carbon block filter, point-of-entry aeration. Find the right filter →
Atrazine (EPA limit: 0.003 mg/L)
Endocrine disruption, cardiovascular & reproductive effects At-risk groups: pregnant women, people in agricultural areas, rural communities in the Midwest corn belt.
Removal methods: granular activated carbon (GAC), carbon block filter, reverse osmosis. Find the right filter →
Lead & Copper
EPA Lead and Copper Rule sampling data for ZIP codes served by this system:
Radon Risk in Service Area
Dominant radon zone for ZIP codes served by this system: Zone 1 (High 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: Service area ZIP codes sourced from EPA Community Water System Service Area Boundaries v3 (March 2026 release). These ZIPs reflect the actual deployment footprint recorded by CO or modeled from parcel and building-footprint data.
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Upper Surface Creek Domestic Wua (CO0115784) on EPA.gov.
Frequently Asked Questions
Is Upper Surface Creek Domestic Wua water safe to drink?
Upper Surface Creek Domestic Wua has recorded 7 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 Upper Surface Creek Domestic Wua serve?
Upper Surface Creek Domestic Wua serves approximately 2,800 people across 2 ZIP codes in Colorado.
Where does Upper Surface Creek Domestic Wua get its water?
The primary water source is surface water.
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.
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
Upper Surface Creek Domestic Wua (EPA ID: CO0115784) — request the latest Consumer Confidence Report or ask about specific contaminants.