Is Silt, CO Tap Water Safe to Drink?
Graded F — but Copper was detected above EPA limits. Here's what's in the water and how to remove it. What to do next ↓
43/100
waterverge.com Silt, CO — Water Quality Report
Silt's drinking water received a grade of F (43 out of 100), indicating failing water quality. The city's 5 water systems serve approximately 3,808 residents using surface water.
Lead levels were measured at 4.0 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 173 violations on record, including 28 health-based violations. 29 remain unresolved.
What to know about Silt's water
Silt ranks #217 out of 246 cities in Colorado for water quality, placing it among the lowest-rated 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 31 violations in the past five years, suggesting a pattern of compliance challenges that residents should monitor closely.
Water quality score
See methodology →Is Silt, CO water safe to drink?
Silt's drinking water has significant quality concerns based on EPA testing data. With a grade of F (43/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 5 water systems serve approximately 3,808 residents using surface water (rivers, lakes, or reservoirs).
Recent water quality updates for Silt
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Silt's water quality assessment. Grade: F (43/100).
Contaminants: Lead and Copper Rule.
Contaminants: Nitrate.
Contaminants: Nitrate.
Federal disaster declaration (FEMA DR-3224). Coastal Storm event — may have impacted local water infrastructure.
Federal disaster declaration (FEMA DR-719). Flood event — may have impacted local water infrastructure.
Key contaminant findings
Based on the most recent EPA sampling data for Silt's water supply.
Well within EPA limits.
Exceeds EPA action level. Copper can leach from household plumbing — flush taps for 30 seconds before drinking.
Violation history
Silt's water system has 173 total violations on record, including 28 health-based violations. 29 remain unresolved. 31 violations were issued in the last 5 years.
Flood & environmental risk
Garfield County has experienced 2 federally declared disasters since 1984. Flooding and severe storms can overwhelm water treatment plants, cause sewage overflows, and introduce agricultural runoff, bacteria, and sediment into drinking water supplies. Local water sources include Elk Creek, Divide Creek, Rifle Gap Reservoir.
Where does Silt's water come from?
Silt's drinking water comes from surface water (rivers, lakes, or reservoirs), supplied by 5 water systems serving approximately 3,808 people. Surface water sources are more susceptible to contamination from runoff, industrial discharge, and algal blooms, requiring extensive treatment. Nearby water bodies include Elk Creek (river), Divide Creek (river), Rifle Gap Reservoir (lake).
What Silt residents can do
Recommended: NSF-certified water filter. This addresses the specific contaminants found in Silt'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.
Run cold water for 30 seconds before drinking, especially in the morning. Lead and copper leach from household plumbing when water sits in pipes.
Data: EPA SDWIS, UCMR 5 (PFAS), FEMA, NOAA. Last updated May 2026.
Top contaminants to know
View all ↓Violation summary
Violations & advisories
Top industrial polluters within 10 miles of Silt
Industrial polluters nearby
Reported releases to surface water by facilities near Silt, ranked by pounds discharged annually.
| Facility | Top chemical | To surface water (lbs/yr) | Distance |
|---|---|---|---|
MULTI-CHEM GROUP RIFLE CO FACILITY RIFLE, CO81650 | — | — | 5.4 mi |
Source: EPA Toxic Release Inventory (TRI) 2023
Drought conditions
D4 — exceptional droughtGarfield County is currently in D4 (exceptional drought) per the U.S. Drought Monitor (week of May 5, 2026). 51.5% of the county is in D4 (exceptional) drought. Drought can elevate disinfection-byproduct (TTHM/HAA5) levels and taste/odor issues as utilities draw from lower reservoirs.
Source: U.S. Drought Monitor, updated weekly by NDMC, USDA, and NOAA.
Flood & disaster history
Garfield County has experienced 2 federally declared disasters since 1984. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.
Recommended water filters
Based on contaminants detected in Silt's water supply, we recommend the following filter types.
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. | 4.0 | 15 | ppb | Inorganic | Safe |
| Copper (90th percentile) CopperInorganic A metal that enters drinking water mainly through corrosion of copper plumbing. Small amounts are essential for health, but excess levels are harmful. Health EffectsGastrointestinal distress (nausea, vomiting, diarrhea) at short-term high levels; liver and kidney damage from long-term exposure. EPA Limit1.3 mg/L action level Common SourcesCorrosion of copper household plumbing, erosion of natural deposits. | 1.50 | 1.3 | mg/L | Inorganic | Over Limit |
Lead level trend (90th percentile)
Copper level (90th percentile)
Latest reading: 1.500 mg/L (2004)
EPA action level: 1.3 mg/L
See how Silt compares by contaminant
Explore where Silt ranks among all Colorado cities for specific contaminants.
Water source & infrastructure
Where Silt's water comes from
Silt's drinking water comes primarily from surface water sources such as rivers, lakes, or reservoirs.
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 3,808 people through 5 water systems.
Water bodies near Silt
Silt is located near 3 notable water bodies. As a surface water system, these water bodies may directly influence the city's drinking water supply.
Water systems serving Silt
| System Name | PWSID | Population | Source |
|---|---|---|---|
| SILT TOWN OF | CO0123710 | 3,536 | SW |
| MINEOTA ESTATES HOA | CO0123010 | 105 | GW |
| ASGARD SUBDIVISION WA | CO0123123 | 80 | SWP |
| WILLIAMS CREEK WATER | CO0123842 | 60 | SWP |
| PEACH VALLEY ORCHARD SUBD | CO0123605 | 27 | GW |
How Silt compares
Full Colorado rankings →Silt's score of 43/100 is on par with the average of 45/100 among major Colorado cities. It outscores 5 of 10 nearby cities.
Nearby cities
View Colorado rankings →About Silt, CO
Learn more about your water
Guides and resources related to Silt's water quality findings.
Explore water quality across Garfield
Frequently asked questions
Is Silt, CO tap water safe to drink?
Silt's water quality earned a grade of F (43/100). Significant issues have been found. A water filter is strongly recommended. The city ranks #217 out of 246 cities tested in Colorado.
What contaminants are in Silt's water?
Lead was measured at 4.0 ppb (90th percentile). 173 violations are on record.
How is Silt'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 Silt?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Silt's water come from?
Silt's water is sourced from Surface water. The city has 5 water systems serving approximately 3,808 residents.
What health violations has Silt's water system had?
Silt has 28 health-based violations on record. The most recent violation was recorded in January 2026. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 29 violations remain unresolved.
How does Silt's water compare to other cities?
Silt ranks #217 out of 246 cities in Colorado (better than 12% of state cities) and #14677 out of 15744 cities nationally (7th percentile). The grade of F reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.