PlainWater
States → Colorado

Community Water System · PWS CO0103153

Bow Mar WSD

Littleton, Colorado 80123 - drinking water served from surface water sources to 899 people, tracked in EPA SDWIS and UCMR5.

899
People served
0
EPA violations
0
Health-based
Untested
UCMR5 result

The verdict

Bow Mar WSD carries a clean Safe Drinking Water Act record, zero EPA violations.

0
Total EPA violations on record
0%
Health-based (MCL / treatment failure)
899
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Bow Mar WSD

Bow Mar WSD is a local-owned community water system that delivers drinking water to 899 residents in Littleton, Colorado (Arapahoe County) through 290 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 0 total violations for this system , giving it a clean Safe Drinking Water Act compliance record.

No specific contaminant violations have been recorded in EPA's detailed violation register for this system. This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

Across Colorado, EPA tracks 2,193 public water systems serving 7,473,456 people, with 238,796 cumulative violations and 30,589 health-based violations on record. About 93% of systems in the state carry at least one violation, and state-wide the average per system is 108.9 violations. Statewide, 98 of 163 UCMR5-tested systems have reported PFAS detections (60.1%).

Bow Mar WSD's 0 violations sit below the Colorado average.

All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

Population Served
899
Total Violations
0
Health-Based Violations
0
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
290
County
Arapahoe
School/Daycare
No
MCL Violations
0
Monitoring Violations
0
Treatment Tech Violations
0

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records, or to file a complaint, request a Consumer Confidence Report, or check current monitoring status, go directly to the federal and state regulators that enforce the Safe Drinking Water Act for Bow Mar WSD.

Federal Source of Truth

EPA SDWIS, Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID CO0103153 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Colorado Drinking Water Authority

Colorado Department of Public Health and Environment, Water Quality Control is the primacy agency that licenses and inspects Bow Mar WSD under EPA-delegated authority.

Open CO regulator portal

Source: Colorado Department of Public Health and Environment, Water Quality Control

How Bow Mar WSD Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric Bow Mar WSD Colorado avg Federal benchmark
Total violations 0 108.9 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 0 13.9 Indicates a contaminant exceeded a federal MCL
PFAS detection None 60.1% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 899 3,408 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 2,193 regulated public water systems in Colorado.

Federal MCL reference, Safe Drinking Water Act thresholds ▼
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029 (EPA proposed extending to 2031, not yet final as of May 2026)
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is Bow Mar WSD water safe to drink? ▼
Bow Mar WSD (PWS ID: CO0103153) has 0 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 899 people using Surface Water sources.
How many people does Bow Mar WSD serve? ▼
Bow Mar WSD serves 899 people in Littleton, Colorado. It is a Local-owned system using Surface Water water sources with 290 service connections.
What type of violations does Bow Mar WSD have? ▼
Bow Mar WSD has 0 total violations: 0 health-based violations (MCL exceedances or treatment failures), 0 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Bow Mar WSD water? ▼
No PFAS testing data is available for Bow Mar WSD under the EPA's UCMR5 monitoring program.
What water source does Bow Mar WSD use? ▼
Bow Mar WSD uses Surface Water as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
Where does this data come from? ▼
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This system's figures are rendered directly from EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.