Is Perth (T), CO Tap Water Safe to Drink?
Graded D+, with 33 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓
52/100
waterverge.com Perth (T), CO — Water Quality Report
Perth (T)'s drinking water received a grade of D+ (52 out of 100), indicating poor water quality. The city's 5 water systems serve approximately 500 residents using groundwater.
Lead levels were measured at 0.0 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 750 violations on record, including 2 health-based violations. 33 remain unresolved.
What to know about Perth (T)'s water
Perth (T) ranks #158 out of 246 cities in Colorado for water quality, placing it below average in the state.
Perth (T) relies on groundwater, which is generally less vulnerable to surface contamination but can be affected by naturally occurring minerals like arsenic and nitrate, as well as agricultural and industrial runoff.
As a small community water system, Perth (T) may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
The system has seen 221 violations in the past five years, suggesting a pattern of compliance challenges that residents should monitor closely.
Water quality score
See methodology →Is Perth (T), CO water safe to drink?
Perth (T)'s drinking water has significant quality concerns based on EPA testing data. With a grade of D+ (52/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 5 water systems serve approximately 500 residents using groundwater (wells).
Recent water quality updates for Perth (T)
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Perth (T)'s water quality assessment. Grade: D+ (52/100).
Contaminants: Revised Total Coliform Rule.
Contaminants: Groundwater Rule.
Contaminants: Consumer Confidence Rule.
Key contaminant findings
Based on the most recent EPA sampling data for Perth (T)'s water supply.
Well within EPA limits.
Violation history
Perth (T)'s water system has 750 total violations on record, including 2 health-based violations. 33 remain unresolved. 221 violations were issued in the last 5 years.
Where does Perth (T)'s water come from?
Perth (T)'s drinking water comes from groundwater (wells), supplied by 5 water systems serving approximately 500 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate.
What Perth (T) residents can do
Recommended: NSF-certified water filter. This addresses the specific contaminants found in Perth (T)'s water.
Your water utility is required to publish an annual Consumer Confidence Report (CCR) with detailed testing results. Ask for the latest copy or check your utility's website.
Data: EPA SDWIS, UCMR 5 (PFAS), FEMA, NOAA. Last updated May 2026.
Top contaminants to know
View all ↓Violation summary
Violations & advisories
Full contaminants report
| Contaminant | Detected Level | EPA Limit | Unit | Category | Status |
|---|---|---|---|---|---|
| Lead (90th percentile) LeadHeavy Metal A toxic heavy metal that can leach into drinking water from older pipes, solder, and fixtures. No amount of lead in water is considered safe. Health EffectsBrain and nervous system damage in children, kidney damage, high blood pressure, and reproductive problems in adults. EPA Limit15 ppb action level Common SourcesCorrosion of lead pipes, lead solder, brass faucets, and household plumbing. | 0.0 | 15 | ppb | Inorganic | Safe |
Lead level trend (90th percentile)
See how Perth (T) compares by contaminant
Explore where Perth (T) ranks among all Colorado cities for specific contaminants.
Water source & infrastructure
Where Perth (T)'s water comes from
Perth (T)'s drinking water is drawn from underground aquifers through wells.
Groundwater is naturally filtered through rock and soil layers, generally requiring less treatment than surface water. However, it can contain naturally occurring contaminants like arsenic, radon, and minerals.
Agricultural activity, septic systems, and industrial operations near well fields can introduce nitrates, pesticides, and volatile organic compounds.
The system is operated by private ownership and serves approximately 500 people through 5 water systems.
Water systems serving Perth (T)
| System Name | PWSID | Population | Source |
|---|---|---|---|
| NORTHWAY MHP | NY1701509 | 250 | GW |
| WOODRIDGE MOBILE HOME PARK | NY1701506 | 78 | GW |
| VALLEY ESTATES | NY1710676 | 66 | GW |
| GOODSPEED MOBILE HOME PARK | NY1716113 | 60 | GW |
| DEERFIELD ESTATES MOBILE HOME PARK | NY1701511 | 46 | GW |
How Perth (T) compares
Full Colorado rankings →Perth (T)'s score of 52/100 is above the average of 45/100 among major Colorado cities. It outscores 9 of 10 nearby cities.
Nearby cities
View Colorado rankings →Learn more about your water
Guides and resources related to Perth (T)'s water quality findings.
Explore water quality across Fulton
Frequently asked questions
Is Perth (T), CO tap water safe to drink?
Perth (T)'s water quality earned a grade of D+ (52/100). Significant issues have been found. A water filter is strongly recommended. The city ranks #158 out of 246 cities tested in Colorado.
What contaminants are in Perth (T)'s water?
Lead was measured at 0.0 ppb (90th percentile). 750 violations are on record.
How is Perth (T)'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 Perth (T)?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Perth (T)'s water come from?
Perth (T)'s water is sourced from Groundwater. The city has 5 water systems serving approximately 500 residents.
What health violations has Perth (T)'s water system had?
Perth (T) has 2 health-based violations on record. The most recent violation was recorded in September 2025. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 33 violations remain unresolved.
Is Perth (T)'s groundwater at risk of contamination?
Perth (T) uses groundwater, which can be affected by naturally occurring contaminants like arsenic, radon, and nitrate, as well as agricultural runoff and industrial activity. The system has 750 violations on record that may relate to groundwater quality. Groundwater systems are generally less susceptible to surface contamination but should be monitored for emerging contaminants like PFAS.
How does Perth (T)'s water compare to other cities?
Perth (T) ranks #158 out of 246 cities in Colorado (better than 36% of state cities) and #12841 out of 15744 cities nationally (18th percentile). The grade of D+ reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.