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Hawaii Water Quality
137 public water systems serving 1,520,931 people.
Water Systems
137
Total Violations
5,234
Violation Rate
80.3%
PFAS Detection
4.4%
2 of 45 tested
Largest Water Systems
HNL-WINDWARD-PEARL HARBOR
HONOLULU, HI · 631,389 served
WAIPAHU-EWA-WAIANAE
HONOLULU, HI · 217,479 served
WAILUKU
WAILUKU, HI · 74,511 served
JOINT BASE PEARL HARBOR-HICKAM
JBPPH, HI · 65,230 served
MILILANI
HONOLULU, HI · 50,573 served
HILO
HILO, HI · 39,477 served
SCHOFIELD BARRACKS
SCHOFIELD BARRACKS, HI · 37,920 served
LIHUE-KAPAA
LIHUE, HI · 34,854 served
MAKAWAO
WAILUKU, HI · 29,868 served
NORTH KONA
HILO, HI · 29,581 served
WAHIAWA
HONOLULU, HI · 23,348 served
LAHAINA
WAILUKU, HI · 20,065 served
MARINE CORPS BASE HAWAII
KANEOHE BAY, HI · 16,300 served
KALAHEO-KOLOA
LIHUE, HI · 12,660 served
WAIKOLOA
WAIKOLOA, HI · 12,100 served
WAIPIO HEIGHTS
HONOLULU, HI · 11,516 served
WAIALUA-HALEIWA
HONOLULU, HI · 9,996 served
SOUTH KOHALA
HILO, HI · 9,612 served
KAANAPALI
WAIKOLOA, HI · 8,000 served
UPPER KULA
WAILUKU, HI · 7,686 served
Most Violations
#1 MAKAWAO WAILUKU
304 #2 HONOKOHAU WAILUKU
285 #3 SOUTH KOHALA HILO
283 #4 WAIAWA CORRECTIONAL FACILITY PEARL CITY
281 #5 MILILANI MEMORIAL PARK PEARL CITY
278 #6 UPPER KULA WAILUKU
256 #7 LAHAINA WAILUKU
243 #8 HILO HILO
170 #9 OLOWALU KAHULUI
155 #10 LANAI CITY LANAI CITY
153 #11 LOWER KULA WAILUKU
145 #12 MAUNALOA-KALUAKOI MAUNALOA
140 #13 HANA WAILUKU
139 #14 HNL-WINDWARD-PEARL HARBOR HONOLULU
130 #15 KUALAPUU MAUNALOA
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