Delta, CO
A PlainEnviro-computed score from reported facility/violation counts, not an official EPA rating, health forecast, or population-adjusted rate. See methodology.
Environmental data for Delta in Colorado · Population: 31,353
Delta, CO is tracked across three EPA datasets covering 0 Toxics Release Inventory (TRI) facilities, 55 Safe Drinking Water Act systems, and 0 Superfund National Priorities List sites. Together these generate an environmental burden score of 15/100 (Low Risk), calibrated against national distributions for facility density, chemical release volume, Superfund concentration, and water-system health violations.
Industrial disclosures inside the county total 0 lbs of reported toxic releases under EPCRA Section 313, while 19 water systems carry an active health-based violation in the SDWIS record. EPA Air Quality System monitors logged a median AQI of 44 and a peak AQI of 80 in 2022, with 87% of observed days rated "Good" (0–50).
All figures below draw directly from federal EPA records, TRI self-reported emissions, SDWIS compliance history, NPL Hazard Ranking System scores, and AQS daily AQI summaries, and are not adjusted, weighted, or forecast. A past violation or elevated score does not itself indicate current unsafe conditions; it documents the regulatory and disclosure history publicly filed with the U.S. Environmental Protection Agency through the most recent reporting cycle.
Air Quality History (2020–2022)
EPA Air Quality Index (AQI) data showing how many days per year fall into each air quality category.
| Year | Good | Moderate | Unhealthy (SG) | Max AQI |
|---|---|---|---|---|
| 2022 | 125 (87%) | 18 | 0 | 80 |
| 2021 | 294 (81%) | 69 | 2 | 141 |
| 2020 | 312 (85%) | 53 | 0 | 97 |
Source: EPA Air Quality System (AQS) Annual AQI by County EPA Air Quality System (AQS) Annual AQI by County AQI categories: Good (0-50), Moderate (51-100), Unhealthy for Sensitive Groups (101-150), Unhealthy (151-200), Very Unhealthy (201-300), Hazardous (301+)
For real-time air quality readings and pollutant breakdowns in Colorado, see the EPA's AirNow.gov.
Water Systems (55)
| System | Population | Violations |
|---|---|---|
| DELTA CITY OF | 8,700 | 0 |
| ORCHARD CITY TOWN OF | 3,100 | 0 |
| UPPER SURFACE CREEK DOMESTIC WUA | 2,800 | 31 |
| PAONIA TOWN OF | 2,499 | 8 |
| CEDAREDGE TOWN OF | 2,400 | 0 |
| HOTCHKISS TOWN OF | 2,050 | 3 |
| ROGERS MESA WC | 840 | 2 |
| DECATUR MHP, LLC | 500 | 0 |
| CEDAR MOUNTAIN VILLAGE MHP | 475 | 0 |
| BONE MESA DOMESTIC WD | 400 | 20 |
| PARADISE PARK MHP | 375 | 0 |
| CV LARAMIE MHP, LLC | 375 | 1 |
| RAMBLEWOOD MOBILE HOME PARK | 350 | 1 |
| FRUITLAND DOMESTIC WC | 335 | 7 |
| PITKIN MESA PIPELINE CO | 295 | 9 |
| HANSON MESA DOMESTIC PIPELINE CO INC | 250 | 0 |
| STEWART MESA WC | 250 | 0 |
| LAMPLIGHTER ESTATES MHP | 250 | 0 |
| ILDU LEPERE MHP, LLC | 250 | 0 |
| DUNCANSVILLE MHP LLC | 250 | 0 |
| HESPERIA MHP LLC | 248 | 0 |
| COALBY DOMESTIC WC | 239 | 25 |
| PICTURE RANCH MHP | 220 | 0 |
| ROSE PARK MHP | 220 | 0 |
| OAK GROVE MOBILE HOME PARK | 213 | 2 |
| LA VIDA MISSION COMMUNITY WATER SUPPLY | 200 | 11 |
| LAZEAR DOMESTIC WC | 178 | 2 |
| GARFIELD ESTATES MHP | 178 | 0 |
| CLOVERLEAF MOBILE HOME PARK | 175 | 0 |
| MIDWAY VILLAGE MOBILE HOME PARK | 160 | 3 |
| VINEYARDS MHC | 150 | 0 |
| TRINIDAD MANUFACTURED HOME COMMUNITY | 133 | 0 |
| HIDDEN VALLEY HOA WATER COMPANY | 120 | 2 |
| APACHE MHP | 120 | 0 |
| WESTLAKE MHP | 116 | 0 |
| BREEZY KNOLL COMMUNITY | 116 | 0 |
| BILLINGS MHP | 110 | 0 |
| CHERRY ACRES MHP | 95 | 0 |
| VALLEY WEST PARK | 93 | 0 |
| MAZOMANIE MHP | 85 | 0 |
| OCONTO FALLS MHP | 80 | 0 |
| SUNSHINE ACRES MHP | 78 | 0 |
| SUNSHINE MESA DOMESTIC WC | 76 | 0 |
| MINNESOTA PIPELINE | 72 | 1 |
| HAMMOND PIPELINE | 70 | 0 |
| GINTERS GROVE DOMESTIC WATER CORP | 62 | 0 |
| WEST PAONIA DOMESTIC WATER COMPANY | 57 | 1 |
| SOUTH LAMBORN MESA WATER COMPANY | 47 | 1 |
| RIVERWOOD MOBILE HOME PARK | 37 | 0 |
| WESTERN EXTENSION DOMESTIC WATER COMPANY | 37 | 0 |
| STUCKER MESA DOMESTIC WC | 36 | 32 |
| RIPVIEW COURT 1 | 35 | 0 |
| RIPVIEW COURT 4 | 35 | 0 |
| RIPVIEW COURT 2 | 31 | 0 |
| RIPVIEW COURT 3 | 31 | 0 |
Frequently Asked Questions
What is the environmental risk level in Delta, Colorado? ▼
Are there Superfund sites in Delta? ▼
How many toxic release facilities are in Delta? ▼
What is the air quality in Delta? ▼
Is the drinking water safe in Delta? ▼
What environmental agencies cover Delta? ▼
What does this county environmental profile show?
This county environmental profile rolls up EPA Toxics Release Inventory facility reports, Safe Drinking Water Information System public-water-system filings, and Superfund National Priorities List sites for the county boundary defined by the U.S. Census Bureau. Facility counts reflect facilities with a reporting address inside the county, not where downstream environmental effects may be observed. Population figures are from the most recent Census ACS 5-year estimate. The county detail page is updated whenever the upstream EPA programs publish revised data; see the methodology page for the documented ingest cadence and the editorial choices governing how aggregations are computed.
Read our methodology - how this data is sourced, computed, and verified.