Douglas County, CO
The federal environmental record for Douglas County (population 383,906): what is on file, where it is, and what remains open. Sources and retrieval dates are on the methodology page.
0
Superfund NPL sites
0
federal cleanup sites
8
PFAS-detecting water systems
11
TRI facilities
8
open tank releases
Drinking water: PFAS testing
Public water systems serving Douglas with at least one PFAS detection under UCMR5. The federal limit for PFOA and PFOS is 4 ng/L; EPA proposed in May 2026 to rescind the limits for the other compounds, which are shown for information.
| System | Highest results | Reading |
|---|---|---|
| PARKER WSD CO0118040 | PFPeA: 14 ng/L PFHxA: 11.9 ng/L PFBA: 8.6 ng/L | above final limit |
| STONEGATE MD CO0118076 | PFOA: 5.6 ng/L PFOS: 5.1 ng/L PFBS: 3.9 ng/L | above final limit |
| CASTLE PINES NORTH MD CO0118006 | PFBA: 6.4 ng/L PFPeA: 3.8 ng/L PFBS: 3.3 ng/L | detected |
| CASTLE ROCK TOWN OF CO0118010 | PFBA: 5.1 ng/L PFPeA: 4.7 ng/L | detected |
| CENTENNIAL WSD CO0118015 | PFBA: 8.7 ng/L PFPeA: 5.7 ng/L PFHxA: 5.1 ng/L | detected |
| NORTHERN DOUGLAS COUNTY WSD CO0118016 | PFBA: 8 ng/L PFPeA: 5.7 ng/L PFHxA: 5.3 ng/L | detected |
| COTTONWOOD WSD CO0118020 | PFPeA: 6.2 ng/L PFBA: 5.6 ng/L PFHxA: 5.4 ng/L | detected |
| PINERY WWD CO0118025 | PFPeA: 9.6 ng/L PFHxA: 8.1 ng/L PFBA: 5.8 ng/L | detected |
On a system with detections? Testing and treatment options
Facilities reporting toxic releases (2024)
11 facilities in Douglas filed TRI reports for 2024, totalling 24k lb released.
| Facility | City | Top chemicals | Total released |
|---|---|---|---|
| PLAYTIME | ENGLEWOOD | Diisocyanates, Toluene | 21k lb |
| HOLCIM WCR INC CENTENNIAL READY MIX PLANT | ENGLEWOOD | Nitrate compounds (water dissociable; reportable only when in aqueous solution), Polycyclic aromatic compounds | 2k lb |
| HOLCIM WCR INC FRANKTOWN READY MIX PLANT | FRANKTOWN | Nitrate compounds (water dissociable; reportable only when in aqueous solution), Lead And Lead Compounds | 374 lb |
| OLDCASTLE PRECAST INC | LITTLETON | Barium compounds (except for barium sulfate (CAS No. 7727-43-7)), Lead compounds | 6 lb |
| READY MIXED CONCRETE - PLANT 13 | SEDALIA | Lead And Lead Compounds | 0 lb |
| BURNCO COLORADO LLC - TITAN | LITTLETON | Lead And Lead Compounds | 0 lb |
| BEST BLOCK - DENB | LITTLETON | Lead | 0 lb |
| SMYRNA READY MIX CONCRETE LLC - TITAN READY MIX | LITTLETON | Lead And Lead Compounds | 0 lb |
| FOLEY PRODUCTS CO - LITTLETON | LITTLETON | Lead | 0 lb |
| SMYRNA READY MIX CONCRETE LLC - CASTLE ROCK READY MIX | CASTLE ROCK | Lead And Lead Compounds | 0 lb |
| ELKHART PLASTICS INC. | LITTLETON | - | 0 lb |
Underground fuel tanks
EPA's UST Finder records 247 tank facilities in Douglas: 245 tanks in service and 340 closed. 157 fuel releases are on record, of which 8 remain open. Open releases are cleanups that have not reached "no further action".
Radon
EPA maps Douglas as Zone 1, the highest predicted indoor radon levels (over 4 pCi/L average). Radon and air quality are covered in depth on lung.com.
The record for one specific address
County figures blur what matters: distance. The Address Environmental Report runs these same federal datasets against one address and reports every site, tank, polluter and water result around it, with distances, in about a minute.
Get the report - $39