WH

Public water system

Sfpuc City Distribution Division

PWSID CA3810011 - San Francisco County, California

9 PPM
0.5 GPG
Soft
0Soft60120180300+
Soft (9 PPM)Verified - State Lab Tested

System Details

Water source
surface water
Population served
848,019
Service connections
171,099
Status
Active

Hardness Evidence

Reported hardness
9 PPM
Grains per gallon
0.5 GPG
Data source
California treated-water report
Source year
2024
Raw/source estimate
208 PPM

Linked City Reports

Hillsborough, CASan Francisco, CA

Served ZIP Codes

ZIPLocationZIP average
94010Hillsborough, CASlightly Hard (119 PPM)
94102San Francisco, CASoft (9 PPM)
94103San Francisco, CASoft (9 PPM)
94104San Francisco, CASoft (9 PPM)
94105San Francisco, CASoft (9 PPM)
94107San Francisco, CASoft (9 PPM)
94108San Francisco, CASoft (9 PPM)
94109San Francisco, CASoft (9 PPM)
94110San Francisco, CASoft (9 PPM)
94111San Francisco, CASoft (9 PPM)
94112San Francisco, CASoft (9 PPM)
94114San Francisco, CASoft (9 PPM)
94115San Francisco, CASoft (9 PPM)
94116San Francisco, CASoft (9 PPM)
94117San Francisco, CASoft (9 PPM)
94118San Francisco, CASoft (9 PPM)
94121San Francisco, CASoft (9 PPM)
94122San Francisco, CASoft (9 PPM)
94123San Francisco, CASoft (9 PPM)
94124San Francisco, CASoft (9 PPM)
94127San Francisco, CASoft (9 PPM)
94129San Francisco, CASoft (10 PPM)
94130San Francisco, CASoft (9 PPM)
94131San Francisco, CASoft (9 PPM)
94132San Francisco, CASoft (9 PPM)
94133San Francisco, CASoft (9 PPM)
94134San Francisco, CASoft (9 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.

MethodologySourcesSearch by ZIP