Public water system
Highlands Ranch Wsd
PWSID CO0118015 - Douglas County, Colorado
200 PPM
11.7 GPG
Hard0Soft60120180300+
Hard (200 PPM)Verified - Annual Water Quality Report
System Details
- Water source
- surface water
- Population served
- 103,444
- Service connections
- 42,300
- Status
- Active
Hardness Evidence
- Reported hardness
- 200 PPM
- Grains per gallon
- 11.7 GPG
- Data source
- Annual Water Quality Report
- Source year
- N/A
- Raw/source estimate
- 108 PPM
Linked City Reports
Served ZIP Codes
| ZIP | Location | ZIP average |
|---|---|---|
| 80104 | Castle Rock, CO | Hard (200 PPM) |
| 80116 | Franktown, CO | Hard (200 PPM) |
| 80118 | Larkspur, CO | Hard (198 PPM) |
| 80124 | Littleton, CO | Hard (200 PPM) |
| 80125 | Littleton, CO | Hard (200 PPM) |
| 80126 | Highlands Ranch, CO | Hard (200 PPM) |
| 80134 | Parker, CO | Hard (200 PPM) |
| 80135 | Deckers, CO | Hard (200 PPM) |
| 80138 | Centennial, CO | Hard (200 PPM) |
How to Use This System Page
A public water system can serve multiple ZIP codes and cities. Use this page to inspect the source behind the hardness reading, then open the linked ZIP or city page for the local rollup.
If you are sizing treatment equipment, confirm your actual tap hardness with a home test or lab test before buying.