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Public water system

Rapid Valley Sanitary District

PWSID SD4600274 - Pennington County, South Dakota

150 PPM
8.8 GPG
Moderately Hard
0Soft60120180300+
Moderately Hard (150 PPM)Verified - Annual Water Quality Report

System Details

Water source
surface water
Population served
11,408
Service connections
4,563
Status
Active

Hardness Evidence

Reported hardness
150 PPM
Grains per gallon
8.8 GPG
Data source
Annual Water Quality Report
Source year
N/A
Raw/source estimate
810 PPM

Linked City Reports

Wanblee, SDRapid City, SDBox Elder, SDCaputa, SDHill City, SDKeystone, SDNew Underwood, SDOwanka, SDCottonwood, SDScenic, SDWall, SDWasta, SD

Served ZIP Codes

ZIPLocationZIP average
57577Wanblee, SDModerately Hard (150 PPM)
57701Rapid City, SDModerately Hard (150 PPM)
57702Rapid City, SDModerately Hard (150 PPM)
57703Rapid City, SDModerately Hard (150 PPM)
57719Box Elder, SDModerately Hard (150 PPM)
57725Caputa, SDModerately Hard (150 PPM)
57745Hill City, SDModerately Hard (152 PPM)
57751Keystone, SDModerately Hard (150 PPM)
57761New Underwood, SDModerately Hard (155 PPM)
57767Owanka, SDModerately Hard (150 PPM)
57775Cottonwood, SDModerately Hard (150 PPM)
57780Scenic, SDModerately Hard (150 PPM)
57790Wall, SDModerately Hard (160 PPM)
57791Wasta, SDModerately Hard (150 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