WH

Public water system

Hilo

PWSID HI0000101 - Hawaii County, Hawaii

15 PPM
0.9 GPG
Soft
0Soft60120180300+
Soft (15 PPM)Verified - Annual Water Quality Report

System Details

Water source
groundwater
Population served
39,477
Service connections
14,621
Status
Active

Hardness Evidence

Reported hardness
15 PPM
Grains per gallon
0.9 GPG
Data source
Annual Water Quality Report
Source year
N/A
Raw/source estimate
1023 PPM

Linked City Reports

Captain Cook, HIHakalau, HIHawi, HIHilo, HIHolualoa, HIHonokaa, HIHonomu, HINaalehu, HIWaikoloa, HIKailua Kona, HIKamuela, HIKeaau, HIKealakekua, HIKapaau, HIKurtistown, HILaupahoehoe, HIMountain View, HINinole, HIOokala, HIPaauilo, HIPahala, HIPahoa, HIPapaaloa, HIPapaikou, HIPepeekeo, HIVolcano, HI

Served ZIP Codes

ZIPLocationZIP average
96704Captain Cook, HISoft (15 PPM)
96710Hakalau, HISoft (15 PPM)
96719Hawi, HISoft (15 PPM)
96720Hilo, HISoft (15 PPM)
96725Holualoa, HISoft (15 PPM)
96727Honokaa, HISoft (15 PPM)
96728Honomu, HISoft (22 PPM)
96737Naalehu, HISoft (15 PPM)
96738Waikoloa, HIModerately Hard (150 PPM)
96740Kailua Kona, HISoft (20 PPM)
96743Kamuela, HISoft (28 PPM)
96749Keaau, HISoft (15 PPM)
96750Kealakekua, HISoft (15 PPM)
96755Kapaau, HISoft (15 PPM)
96760Kurtistown, HISoft (15 PPM)
96764Laupahoehoe, HISoft (28 PPM)
96771Mountain View, HISoft (15 PPM)
96772Naalehu, HISoft (15 PPM)
96773Ninole, HISoft (15 PPM)
96774Ookala, HISoft (15 PPM)
96776Paauilo, HISoft (23 PPM)
96777Pahala, HISoft (29 PPM)
96778Pahoa, HISoft (38 PPM)
96780Papaaloa, HISoft (15 PPM)
96781Papaikou, HISoft (40 PPM)
96783Pepeekeo, HISoft (32 PPM)
96785Volcano, HISoft (15 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