CITY REPORT CO

Ault, CO: 4 Violations — 64/100 (2026)

1 ZIP code · 3 water systems · Updated 2026-06-03

While Ault avoids CO's lowest safety tiers, a portion of its water systems have logged documented violations.

How Ault Compares

Ault64/100
Colorado avg60/100
National avg67/100

Data: EPA SDWIS Last verified: 2026-06-03

1
ZIP Codes
3
Water Systems
1
ZIPs with Violations
C · 64
Avg Safety Score
Zone 1
Radon Risk (High)
$403K
Median Home Value
$1,200
Est. Remediation (0.3% of home value)

What You Should Know About Ault Water

  • Your city's water systems recorded 4 violations in the past 5 years.
  • Average lead level: 0.0013 mg/L.
  • Homes built before 1986: 56% — older plumbing may contain lead solder.
  • Estimated remediation: $1,200 per household.
  • CDC health risk index: 11.23.

Who Supplies Your Water in Ault

Residential addresses in Ault, CO are served by 3 primary water providers out of 3 systems in federal records. Each system maintains separate infrastructure and files its own EPA compliance reports, so service conditions are not uniform across the city.

North Weld County Water District
Serves ~15,890 people · 4 violations
64
/100
Ault Town of
Serves ~4,220 people · 4 violations
64
/100
Pierce Town of
Serves ~1,094 people · 4 violations
64
/100

Overview

We track water quality and home safety data for 1 ZIP code in Ault, Colorado (population ~4,175), covering 3 community water systems serving approximately 21,204 people region-wide.

1 of 1 ZIP code (100%) have recorded EPA violations. All violations are monitoring/reporting type.

Home Safety Score

Average Home Safety Score for Ault: C (64/100)

The score combines three factors:

Factor What It Measures
Water Quality EPA violations and compliance history
Lead Levels 90th percentile lead concentration vs EPA action level
Radon Risk EPA radon zone classification

Water Sources

Ault water systems draw from: Surface water.

Lead & Copper

  • Average lead level (90th percentile): 0.0013 mg/L (EPA action level: 0.015 mg/L)
  • 0 ZIP codes exceed the EPA lead action level

Radon Risk

Dominant radon zone: Zone 1 (High Risk)

The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.

Top Contaminants

Contaminant Category Violations ZIPs Affected
Surface Water Treatment Rule Treatment Technique 4 1
Total Trihalomethanes (TTHM) Disinfection Byproducts 2 1
Consumer Confidence Report Rule Reporting 2 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
80610 C 4 0 Ault Town of

All ZIP Codes in Ault

  • 80610 [C] — 4 violations

Data Sources

Updated daily.

Health Outcomes in Ault

10.7%
Asthma (US: 9.8%)
9.5%
Diabetes (US: 10.4%)
17.2%
Poor Mental Health (US: 14.8%)

Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.

Compared to National Average

Asthma 10.7% ↑
Diabetes 9.5% ↓
Mental Health 17.2% ↑

Vertical line = national average. Above national · Below national

Top Contaminants in Ault Water

Surface Water Treatment Rule 4 violations
Treatment Technique
Pathogens may not be adequately removed
Total Trihalomethanes (TTHM) 2 violations
Disinfection Byproducts · EPA limit: 0.08 mg/L
Increased cancer risk with long-term exposure
Consumer Confidence Report Rule 2 violations
Reporting

Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.

Housing & Infrastructure in Ault

1971
Median Build Year
56%
Built Before 1986
29%
Built Before 1970
Copper
Likely Pipe Material

With 56% of homes built before 1986, lead solder in plumbing is a potential concern. The EPA banned lead solder in 1986, but many older homes retain original plumbing.

Source: U.S. Census Bureau American Community Survey (ACS).

Housing Age Profile

Ault's housing stock is predominantly older, with a median build year of 1971 that reflects decades of construction before federal plumbing standards were tightened. The 1986 ban on lead solder and the pre-1970 era of lead service lines are both relevant benchmarks here — a significant share of the residential inventory predates one or both of those cutoffs, creating an elevated baseline for plumbing-related lead risk that aggregate water quality data may not fully reflect at the household level.

1971
Median Year Built
56%
Pre-1986 (Lead Paint Risk)
29%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (29%) 1970–1986 (27%) Post-1986 (44%)

Over half of homes in Ault were built before 1986, when lead solder was banned. Older plumbing may leach lead into drinking water, especially with corrosive water chemistry.

Source: U.S. Census Bureau ACS B25034.

Cost Context: What Remediation Means for Ault Homeowners

In Ault, property values comfortably outpace what documented remediation typically costs — the equity share is proportionally low.

Median Home Value
$403,300
Est. Remediation
$1,200
Remediation as % of home value 0.3%

Remediation costs in Ault are relatively low compared to home values. The $800–$1,500 estimated range is a small fraction of median property value. Home values are 11% below the Colorado average.

Lead Exposure Risk for Children in Ault

56%
Homes Built Before 1986
0.0013
mg/L Avg Lead (Limit: 0.015)

Why children are most at risk: The CDC states there is no safe level of lead exposure for children. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.

Practically, the structural drivers in Ault — 56% pre-rule stock and citywide monitoring at or beyond the regulatory benchmark — make an in-home draw the practical way to translate aggregate averages into the specific conditions at one address.

Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.

What You Can Do in Ault

  1. Test your water at home. City-level data shows averages — your tap may differ. NSF-certified test kits cost $20-40 and give results in days.
  2. Install a certified water filter. Filters rated for Surface Water Treatment Rule can reduce the most common contaminant found in Ault's water.
  3. Check your home's plumbing. With 56% of homes built before 1986, lead solder is a real possibility.

Frequently Asked Questions

Is the water safe to drink in Ault, CO?
Ault has an average water safety score of 64/100 (Grade C). 4 EPA violations have been recorded. Check individual ZIP code reports for details specific to your neighborhood.
How many water violations does Ault have?
Ault water systems have a total of 4 EPA violations. Violations are tracked across 1 ZIP code.
Does Ault water have lead?
The average 90th-percentile lead level in Ault is 0.0013 mg/L. This is below the EPA action level of 0.015 mg/L. Lead levels can vary by home — testing is recommended especially in older properties.
How does Ault compare to Colorado average?
Ault has an average water safety score of 64/100, which is above the Colorado state average of 60/100.
How many water systems serve Ault?
Ault is served by 3 public water systems across 1 ZIP code, serving approximately 4,175 people.
How much does it cost to fix water issues in Ault?
Estimated remediation costs in Ault average $1,200 per household, ranging from $800 to $1,500. Costs include filtration, pipe replacement, radon mitigation, and flood protection.
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