PlainWater

Community Water System · PWS CO0203012

Inverness WSD

Englewood, Colorado 80112 - drinking water served from surface water sources to 8,140 people, tracked in EPA SDWIS and UCMR5.

8,140
People served
154
EPA violations
0
Health-based
1 PFAS
UCMR5 result

The verdict

EPA records 154 drinking-water violations at Inverness WSD - above the Colorado per-system average, and UCMR5 testing detected 1 PFAS compound.

154
Total EPA violations on record
0%
Health-based (MCL / treatment failure)
8,140
People served by this system
1
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Inverness WSD

Inverness WSD is a local-owned community water system that delivers drinking water to 8,140 residents in Englewood, Colorado (Arapahoe County) through 216 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 154 total violations for this system , of which 0 (0%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 151 monitoring and reporting violations are on file. The most recent violation on record dates to 2023.

The most frequently cited contaminant at this system is Di(2-ethylhexyl) phthalate, recorded in 22 violations (MR). Under EPA's UCMR5 PFAS monitoring program, 1 PFAS compound was detected in samples collected from this system, with a maximum reported concentration of 6.9 ppt (parts per trillion). PFAS are persistent synthetic chemicals linked to health effects at very low exposure levels.

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%).

Inverness WSD's 154 violations sit above 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.

PFAS Detected

1 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.

Population Served
8,140
Total Violations
154
Health-Based Violations
0
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
216
County
Arapahoe
School/Daycare
No
MCL Violations
0
Monitoring Violations
151
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Di(2-ethylhexyl) phthalate MR 22 2014
Coliform (TCR) MR 9 2008
Arsenic MR 4 2011
Barium MR 4 2011
Cadmium MR 4 2011
Chromium MR 4 2011
Beryllium, Total MR 4 2011
Nickel MR 4 2011
Selenium MR 4 2011
Mercury MR 4 2011
Thallium, Total MR 4 2011
Antimony, Total MR 4 2011
Nitrate MR 3 1993
Fluoride MR 3 2005
Total Polychlorinated Biphenyls (PCB) MR 3 2011
HEXACHLOROBENZENE MR 3 2011
2,4-D MR 3 2011
2,4,5-TP MR 3 2011
Heptachlor epoxide MR 3 2011
Heptachlor MR 3 2011
Hexachlorocyclopentadiene MR 3 2011
Diquat MR 3 2011
BHC-GAMMA MR 3 2011
Endrin MR 3 2011
Chlordane MR 3 2011
ETHYLENE DIBROMIDE MR 3 2011
Consumer Confidence Rule Other 3 2023
Toxaphene MR 3 2011
Endothall MR 3 2011
Pentachlorophenol MR 3 2011

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 1 of 464 samples detected PFAS.

Contaminant Date Result MRL Status
ADONA 7/31/2024 <3.00 ppt 3.00 ppt Not Detected
PFHpA 7/31/2024 <3.00 ppt 3.00 ppt Not Detected
PFTA 7/31/2024 <8.00 ppt 8.00 ppt Not Detected
PFTrDA 7/31/2024 <7.00 ppt 7.00 ppt Not Detected
NEtFOSAA 7/31/2024 <5.00 ppt 5.00 ppt Not Detected
PFHxA 7/31/2024 <3.00 ppt 3.00 ppt Not Detected
PFBS 7/31/2024 <3.00 ppt 3.00 ppt Not Detected
9Cl-PF3ONS 7/31/2024 <2.00 ppt 2.00 ppt Not Detected
NMeFOSAA 7/31/2024 <6.00 ppt 6.00 ppt Not Detected
HFPO-DA 7/31/2024 <5.00 ppt 5.00 ppt Not Detected
PFBA 7/31/2024 <5.00 ppt 5.00 ppt Not Detected
PFNA 7/31/2024 <4.00 ppt 4.00 ppt Not Detected
PFHxS 7/31/2024 <3.00 ppt 3.00 ppt Not Detected
11Cl-PF3OUdS 7/31/2024 <5.00 ppt 5.00 ppt Not Detected
PFDA 7/31/2024 <3.00 ppt 3.00 ppt Not Detected
PFUnA 7/31/2024 <2.00 ppt 2.00 ppt Not Detected
PFOA 7/31/2024 <4.00 ppt 4.00 ppt Not Detected
PFHpS 7/31/2024 <3.00 ppt 3.00 ppt Not Detected
PFDoA 7/31/2024 <3.00 ppt 3.00 ppt Not Detected
6:2 FTS 7/31/2024 <5.00 ppt 5.00 ppt Not Detected
4:2 FTS 7/31/2024 <3.00 ppt 3.00 ppt Not Detected
8:2 FTS 7/31/2024 <5.00 ppt 5.00 ppt Not Detected
PFMPA 7/31/2024 <4.00 ppt 4.00 ppt Not Detected
PFPeA 7/31/2024 <3.00 ppt 3.00 ppt Not Detected
PFMBA 7/31/2024 <3.00 ppt 3.00 ppt Not Detected
PFEESA 7/31/2024 <3.00 ppt 3.00 ppt Not Detected
NFDHA 7/31/2024 <20.00 ppt 20.00 ppt Not Detected
PFPeS 7/31/2024 <4.00 ppt 4.00 ppt Not Detected
PFOS 7/31/2024 <4.00 ppt 4.00 ppt Not Detected
PFHxA 7/24/2024 <3.00 ppt 3.00 ppt Not Detected
PFEESA 7/24/2024 <3.00 ppt 3.00 ppt Not Detected
PFHxS 7/24/2024 <3.00 ppt 3.00 ppt Not Detected
PFNA 7/24/2024 <4.00 ppt 4.00 ppt Not Detected
PFOS 7/24/2024 <4.00 ppt 4.00 ppt Not Detected
PFOA 7/24/2024 <4.00 ppt 4.00 ppt Not Detected
PFDA 7/24/2024 <3.00 ppt 3.00 ppt Not Detected
PFDoA 7/24/2024 <3.00 ppt 3.00 ppt Not Detected
PFUnA 7/24/2024 <2.00 ppt 2.00 ppt Not Detected
PFBA 7/24/2024 <5.00 ppt 5.00 ppt Not Detected
6:2 FTS 7/24/2024 <5.00 ppt 5.00 ppt Not Detected
11Cl-PF3OUdS 7/24/2024 <5.00 ppt 5.00 ppt Not Detected
PFMBA 7/24/2024 <3.00 ppt 3.00 ppt Not Detected
PFBS 7/24/2024 <3.00 ppt 3.00 ppt Not Detected
NFDHA 7/24/2024 <20.00 ppt 20.00 ppt Not Detected
PFPeS 7/24/2024 <4.00 ppt 4.00 ppt Not Detected
PFHpS 7/24/2024 <3.00 ppt 3.00 ppt Not Detected
ADONA 7/24/2024 <3.00 ppt 3.00 ppt Not Detected
HFPO-DA 7/24/2024 <5.00 ppt 5.00 ppt Not Detected
4:2 FTS 7/24/2024 <3.00 ppt 3.00 ppt Not Detected
8:2 FTS 7/24/2024 <5.00 ppt 5.00 ppt Not Detected

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 Inverness 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 CO0203012 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 Inverness WSD under EPA-delegated authority.

Open CO regulator portal

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

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2023 Consumer Confidence Rule Other 3 SDWIS / CO0203012 / 7000
2014 Di(2-ethylhexyl) phthalate MR 22 SDWIS / CO0203012 / 2039
2011 Arsenic MR 4 SDWIS / CO0203012 / 1005
2011 Barium MR 4 SDWIS / CO0203012 / 1010
2011 Cadmium MR 4 SDWIS / CO0203012 / 1015
2011 Chromium MR 4 SDWIS / CO0203012 / 1020
2011 Beryllium, Total MR 4 SDWIS / CO0203012 / 1075
2011 Nickel MR 4 SDWIS / CO0203012 / 1036
2011 Selenium MR 4 SDWIS / CO0203012 / 1045
2011 Mercury MR 4 SDWIS / CO0203012 / 1035
2011 Thallium, Total MR 4 SDWIS / CO0203012 / 1085
2011 Antimony, Total MR 4 SDWIS / CO0203012 / 1074
2011 Total Polychlorinated Biphenyls (PCB) MR 3 SDWIS / CO0203012 / 2383
2011 HEXACHLOROBENZENE MR 3 SDWIS / CO0203012 / 2274
2011 2,4-D MR 3 SDWIS / CO0203012 / 2105

How Inverness WSD Compares

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

Metric Inverness WSD Colorado avg Federal benchmark
Total violations 154 108.9 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 1 compound 60.1% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 8,140 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 Inverness WSD water safe to drink?
Inverness WSD (PWS ID: CO0203012) has 154 recorded violations in the EPA SDWIS database. PFAS contamination has been detected in UCMR5 testing, with 1 PFAS compound found. This system serves 8,140 people using Surface Water sources.
How many people does Inverness WSD serve?
Inverness WSD serves 8,140 people in Englewood, Colorado. It is a Local-owned system using Surface Water water sources with 216 service connections.
What type of violations does Inverness WSD have?
Inverness WSD has 154 total violations: 0 health-based violations (MCL exceedances or treatment failures), 151 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Inverness WSD water?
Yes. UCMR5 testing detected 1 PFAS compound in Inverness WSD's water supply: PFBA. PFAS are persistent "forever chemicals" that do not break down in the environment.
What water source does Inverness WSD use?
Inverness 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. PFAS data from EPA UCMR5 monitoring program (2023-2025). This data is provided for informational purposes only.
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.