Public water system
City Of Frederick
PWSID MD0100015 - Frederick County, Maryland
120 PPM
7 GPG
Moderately Hard0Soft60120180300+
Moderately Hard (120 PPM)Verified - Annual Water Quality Report
System Details
- Water source
- surface water
- Population served
- 54,000
- Service connections
- 16,600
- Status
- Active
Hardness Evidence
- Reported hardness
- 120 PPM
- Grains per gallon
- 7 GPG
- Data source
- Annual Water Quality Report
- Source year
- N/A
- Raw/source estimate
- 175 PPM
Linked City Reports
Frederick, MDDoubs, MDBrunswick, MDBuckeystown, MDBurkittsville, MDEmmitsburg, MDIjamsville, MDJefferson, MDKeymar, MDKnoxville, MDLibertytown, MDMiddletown, MDMonrovia, MDMount Airy, MDMyersville, MDNew Market, MDPoint Of Rocks, MDRocky Ridge, MDSabillasville, MDGraceham, MDTuscarora, MDWalkersville, MDWoodsboro, MD
Served ZIP Codes
| ZIP | Location | ZIP average |
|---|---|---|
| 21701 | Frederick, MD | Moderately Hard (120 PPM) |
| 21702 | Frederick, MD | Moderately Hard (120 PPM) |
| 21703 | Frederick, MD | Moderately Hard (120 PPM) |
| 21704 | Frederick, MD | Moderately Hard (120 PPM) |
| 21710 | Doubs, MD | Moderately Hard (120 PPM) |
| 21716 | Brunswick, MD | Slightly Hard (117 PPM) |
| 21717 | Buckeystown, MD | Moderately Hard (120 PPM) |
| 21718 | Burkittsville, MD | Moderately Hard (120 PPM) |
| 21727 | Emmitsburg, MD | Moderately Hard (121 PPM) |
| 21754 | Ijamsville, MD | Moderately Hard (120 PPM) |
| 21755 | Jefferson, MD | Moderately Hard (120 PPM) |
| 21757 | Keymar, MD | Moderately Hard (120 PPM) |
| 21758 | Knoxville, MD | Moderately Hard (120 PPM) |
| 21762 | Libertytown, MD | Moderately Hard (120 PPM) |
| 21769 | Middletown, MD | Moderately Hard (124 PPM) |
| 21770 | Monrovia, MD | Moderately Hard (120 PPM) |
| 21771 | Mount Airy, MD | Slightly Hard (116 PPM) |
| 21773 | Myersville, MD | Slightly Hard (119 PPM) |
| 21774 | New Market, MD | Moderately Hard (120 PPM) |
| 21777 | Point Of Rocks, MD | Moderately Hard (120 PPM) |
| 21778 | Rocky Ridge, MD | Moderately Hard (120 PPM) |
| 21780 | Sabillasville, MD | Moderately Hard (120 PPM) |
| 21788 | Graceham, MD | Slightly Hard (116 PPM) |
| 21790 | Tuscarora, MD | Moderately Hard (120 PPM) |
| 21793 | Walkersville, MD | Moderately Hard (123 PPM) |
| 21798 | Woodsboro, MD | Slightly Hard (120 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.