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WaterVerge

Water quality report · updated Jul 2026

Is Watkins, CO Tap Water Safe to Drink?

Graded D, with 16 unresolved violations on record. See what was cited — and what it means for your tap. What to do ↓

0 contaminants over a legal limit
0.5 ppb lead, 90th percentile · low
16 unresolved violations
4K people served by 3 water systems

PWSID CO0103666 · moderate data confidence · local government utility

Reviewed by WaterVerge Editorial Team · Last updated July 2026
D 49 / 100

#174 of 244Colorado cities
How we grade →

01The verdict: is Watkins water safe?

Watkins's drinking water has significant quality concerns based on EPA testing data. With a grade of D (49/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 3 water systems serve approximately 3,702 residents using surface water (rivers, lakes, or reservoirs).

The concern

16 unresolved violations on record

EPA records show open compliance items for this system. Most are administrative, but unresolved items are worth watching.

See what was cited ↓
The good news

Lead is well under the limit

90th-percentile lead is 0.5 ppb — beneath the 15 ppb federal action level and under the 5 ppb watch threshold.

See the trend ↓
Keep watching

72 violations in the last five years

Recent compliance history is the best predictor of future problems — the year-by-year record is below.

See the record ↓

Watkins's drinking water received a grade of D (49 out of 100), indicating poor water quality. The city's 3 water systems serve approximately 3,702 residents using purchased surface water.

Lead levels were measured at 0.5 ppb (90th percentile), well within EPA limits. This system has not yet been tested for PFAS under the EPA UCMR 5 program. The system has 159 violations on record, including 3 health-based violations. 16 remain unresolved.

Watkins ranks #174 out of 244 cities in Colorado for water quality, placing it below average in the state. The city draws from surface water sources, which are more susceptible to seasonal runoff and agricultural contamination, requiring extensive multi-barrier treatment including coagulation, filtration, and disinfection. The system has seen 72 violations in the past five years, suggesting a pattern of compliance challenges that residents should monitor closely.

How the 49/100 breaks down Methodology →
ViolationsHistorical violation record including health-based and monitoring violations.
0 / 45F
Lead & CopperLead at 0.5 ppb (90th percentile).
20 / 20A
ContaminantsPFAS + legacy contaminant analysis.
17 / 20B
ComplianceMonitoring and reporting compliance with EPA regulations.
8 / 10B
Source RiskWater source: Purchased surface water.
4 / 5B

02What's in Watkins's water

Every contaminant flagged in Watkins, on one shared scale: distance to its own legal limit. The red line is the limit — anything past it is out of compliance, and the closer a bar gets, the less headroom the system has.

1 detection · sorted by % of legal limit
Over the limit Elevated — watch Within limits
0 50% LEGAL LIMIT 150%
1 contaminant tested under EPA SDWIS, LCR and UCMR programs · 1 detected · not yet tested for PFAS under UCMR 5

Full contaminants report

Contaminant Detected Level EPA Limit Unit Category Status
Lead (90th percentile) 0.5 15 ppb Inorganic Safe
Data source: EPA SDWIS, UCMR 5, local utility CCR.

03Watkins's ten-year track record

Each box is one year. A green check means no EPA violations; a numbered badge counts that year's violations — red if any were health-based, amber if they were monitoring or paperwork issues. The system has 159 violations on record, including 3 health-based violations. 16 remain unresolved.

2 of the last ten years were clean. The numbered years had EPA violations — red when any were health-based, amber when they were paperwork or missed-testing issues.

81 monitoring & paperwork 11 still unresolved
UpdateWater quality data updatedLatest EPA compliance and testing data incorporated into Watkins's water quality assessment. Grade: D (49/100).
Violation2 drinking water violations recordedContaminants: Chlorine, Revised Total Coliform Rule.Resolved
Violation1 drinking water violation recordedContaminants: Chlorine.Resolved
Violation1 drinking water violation recordedContaminants: Revised Total Coliform Rule.Open
DisasterSEVERE STORMS, TORNADOES, FLOODING, LANDSLIDES, AND MUDSLIDESFederal disaster declaration (FEMA DR-4229). Flood event — may have impacted local water infrastructure.
DisasterSEVERE STORMS, FLOODING, LANDSLIDES, AND MUDSLIDESFederal disaster declaration (FEMA DR-4145). Flood event — may have impacted local water infrastructure.
Lead, 90th percentileppb · lower is better
05101520EPA action level · 15 ppb1993 — 5 ppb1994 — 5 ppb1995 — 2 ppb1998 — 5 ppb2001 — 3 ppb2002 — 8 ppb2003 — 10 ppb2004 — 5.4 ppb2005 — 6.5 ppb2006 — 1 ppb2007 — 1 ppb2008 — 1 ppb2009 — 0 ppb2010 — 3 ppb2013 — 0 ppb2016 — 0.50 ppb2017 — 0 ppb2018 — 0 ppb2019 — 1 ppb2020 — 0 ppb2021 — 0.50 ppb2022 — 0 ppb2023 — 0 ppb2024 — 0 ppb2025 — 1.8 ppb51.8199320022007201620212025

Down 3.2 ppb since 1993. Latest reading: 1.8 ppb (2025) — 12% of the action level. Sampled at higher-risk homes (90th percentile).

04Where Watkins's water comes from

Watkins's drinking water comes primarily from surface water sources such as rivers, lakes, or reservoirs.

Source

Purchased Surface Water

Rivers, lakes, or reservoirs — more exposed to runoff, agriculture, and seasonal swings than groundwater.

Treatment

Wholesale supplier

Multi-barrier treatment: coagulation, sedimentation, filtration, and disinfection to meet EPA standards.

Distribution

3 systems

3 water systems, operated under local government ownership.

Delivery

3,702 people

Residents served across Watkins's service area.

Surface water systems require multi-stage treatment including coagulation, sedimentation, filtration, and disinfection to meet EPA Safe Drinking Water Act standards. These sources can be impacted by seasonal changes, stormwater runoff, upstream agriculture, and industrial discharge. The system is operated by local government ownership and serves approximately 3,702 people through 3 water systems.

System namePWSIDPopulationSource
RANGEVIEW MD CO0103666 2,487 Purchased Surface Water
ELBERT COUNTY HWY 86 WD CO0120245 1,040 Groundwater
PRAIRIE VIEW POA CO0101125 175 Groundwater

05Pressure on Watkins's watershed

Outside forces that shape what reaches the treatment plant. None of these is a verdict on the tap by itself — but each adds pressure worth knowing about.

Industrial discharge

Present — monitored

4 facilities within 10 miles reported 0 lb released to surface water in the latest EPA Toxics Release Inventory. Proximity doesn't equal tap contamination — treatment and hydrology decide — but it's pressure on the watershed.

ADVANCEDPCB 0 lb · 9.7 mi
ELKAY WOOD PRODUCTS CO 0 lb · 7.8 mi
SMYRNA READY MIX CONCRETE LLC - PICADILLY READY MIX 0 lb · 9.2 mi
+ 1 more facilities

Flood & storm history

Recurring — declared disasters

6 federal disaster declarations on record for Adams County. Flooding and severe storms can overwhelm treatment plants, cause sewage overflows, and push runoff into supplies.

SEVERE STORMS, TORNADOES, FLOODING, LANDSLIDES, AND MUDSLIDES Jul 2015 · DR-4229
SEVERE STORMS, FLOODING, LANDSLIDES, AND MUDSLIDES Sep 2013 · DR-4145
SEVERE STORMS, FLOODING, LANDSLIDES, AND MUDSLIDES Sep 2013 · DR-3365

Superfund proximity

Low — tracked and monitored

1 National Priorities List site within 10 miles. Proximity does not necessarily indicate tap-water contamination — the connection depends on hydrology and treatment.

Drought

D2 — severe drought

Adams County is in D2 (severe drought) per the U.S. Drought Monitor (week of Jul 2026). Drought can raise disinfection-byproduct levels and taste/odor issues as utilities draw from lower reservoirs.

Current streak at D2+ severity23 wks
Weeks at D2+ in the last 5 years23 wks
Months in D2+ over the last 30 years21.7%

06How Watkins compares

Scores for nearby Colorado cities on one line, with the average marked.

Watkins (this city)
49 · D
Fort Collins
46.8 · D
Denver
39.6 · F
Aurora
38.1 · F
Lakewood
36.9 · F

dashed line = Colorado average (45/100)

Watkins scores 49/100on par with the Colorado average of 45/100. It outscores 9 of 10 nearby cities. Full Colorado rankings →

Arapahoe water quality rankings
Compare all cities in the county — grades, violations, and contaminant data side by side.

07What to do at home

Steps matched to what testing actually found in Watkins's water — not generic advice.

Extra protection

A basic carbon filter still helps

Watkins's water meets federal standards, but a simple carbon filter improves taste and adds a margin of safety against short-term issues.

Compare tested filters →
Know your report

Read your utility's annual report

Every utility must publish a yearly Consumer Confidence Report with its own testing results. It pairs well with the independent data on this page.

How to read a CCR →
Stay informed

Watch for Watkins alerts

This area has a history of flood declarations — after severe weather, watch for boil-water advisories from the utility, and check the live alerts on this page.

All water alerts →

Frequently asked questions

Is Watkins, CO tap water safe to drink?

Watkins's water quality earned a grade of D (49/100). Significant issues have been found. A water filter is strongly recommended. The city ranks #174 out of 244 cities tested in Colorado.

What contaminants are in Watkins's water?

Lead was measured at 0.5 ppb (90th percentile). 159 violations are on record.

How is Watkins's water quality grade calculated?

The grade is based on four factors: violation history (40%), lead and copper levels (25%), PFAS contamination (25%), and regulatory compliance (10%). The score is also adjusted based on how complete the available data is. See our methodology page for full details.

Do I need a water filter in Watkins?

Based on current data, basic filtration should suffice for additional peace of mind.

Where does Watkins's water come from?

Watkins's water is sourced from Purchased surface water. The city has 3 water systems serving approximately 3,702 residents.

What health violations has Watkins's water system had?

Watkins has 3 health-based violations on record. The most recent violation was recorded in July 2025. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 16 violations remain unresolved.

How does Watkins's water compare to other cities?

Watkins ranks #174 out of 244 cities in Colorado (better than 29% of state cities) and #13069 out of 15382 cities nationally (15th percentile). The grade of D reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.

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About Watkins, CO: Median household income $153,000 · median home value $631,815 · median age 46.7 · 99.7% homeowners · 28.3% college educated. Service area: 1 ZIP code across Arapahoe.
Show ZIP codes 80137
Sources: EPA SDWIS & ECHO · UCMR 3–5 · Lead & Copper Rule samples · EPA TRI · U.S. Drought Monitor · FEMA declarations. Data last updated Jul 2026. Analysis by the WaterVerge Editorial Team · methodology.