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Results for Kings County, CA

99 water providers on file for this county, sorted by population served.

Quick answer: Kings County has 99 water providers profiled, sorted by population served.

Lead Summary
Nitrate
Arsenic
Copper, Free
Combined Uranium
Gross Alpha Particle Activity
Conductivity (at 25°C)
Lead
Totalhaloaceticacids (HAA5)
TTHM
Chloroform
Bromodichloromethane
Dichloroaceticacid
Trichloroaceticacid
Fluoride
Turbidity
Aluminum
Color
Barium
Bromoform
Dibromochloromethane
Dibromoaceticacid
Aggressive Index
Langelier Index (pH(s))
Magnesium
Sodium
Calcium
Alkalinity, Total
Alkalinity, Bicarbonate
Alkalinity, Carbonate
Hardness, Total (ASCACO3)
TDS
Chloride
Sulfate
pH
Iron
Manganese
Zinc
Gross Beta Particle Activity
Monobromoaceticacid
Potassium
Nitrate-Nitrite
Copper Summary
Chromium, Hex
Carbon, Total
Radium-228
Odor
Selenium
Adsorbableorganicfluorine
Monochloroaceticacid
Orthophosphate

Violations on file

Coliform (TCR)

Older/archived health-based violation

Found at 8 of 99 providers

Nitrate

Older/archived health-based violation

Found at 2 of 99 providers

Commonly from agricultural fertilizer runoff or septic systems. Above the legal limit, it's an immediate concern especially for infants.

Arsenic

Older/archived health-based violation

Found at 7 of 99 providers

Occurs naturally in some groundwater. Long-term exposure above the legal limit (10 ppb) has been linked to increased cancer risk and cardiovascular disease.

Lead And Copper Rule Revisions

Currently open health violation

Found at 3 of 99 providers

TTHM

Older/archived health-based violation

Found at 3 of 99 providers

A group of disinfection byproducts formed when chlorine reacts with organic matter. Long-term exposure above the legal limit has been linked to increased cancer risk in some studies.

Total Haloacetic Acids (HAA5)

Older/archived health-based violation

Found at 1 of 99 providers

Contaminants found

Metals

Naturally occurring or corrosion-related elements, e.g. lead, arsenic, copper

Lead Summary

Detected: 0.0275 mg/L (ppm)

Found at 29 providers

Arsenic

Detected: 30.2 UG/L (ppb)

Found at 19 providers

Occurs naturally in some groundwater. Long-term exposure above the legal limit (10 ppb) has been linked to increased cancer risk and cardiovascular disease.

Copper, Free

Detected: 370 UG/L (ppb)

Found at 11 providers

Combined Uranium

Detected: 5.9 PCI/L

Found at 3 providers

A naturally occurring radioactive metal. Long-term exposure above the legal limit is associated with kidney effects and increased cancer risk.

Lead

Detected: 5.5 UG/L (ppb)

Found at 8 providers

A metal that can leach from old pipes, solder, and fixtures. Current medical guidance holds there is no truly safe level of lead exposure, especially for children and pregnant women.

Aluminum

Detected: 930 UG/L (ppb)

Found at 12 providers

Barium

Detected: 28 UG/L (ppb)

Found at 3 providers

Iron

Detected: 2100 UG/L (ppb)

Found at 9 providers

Mostly an aesthetic issue (metallic taste, staining) rather than a health concern at typical levels.

Manganese

Detected: 73 UG/L (ppb)

Found at 6 providers

Mainly a taste/staining concern at typical levels; long-term neurological research at high chronic exposure is ongoing.

Zinc

Detected: 1100 UG/L (ppb)

Found at 2 providers

Copper Summary

Detected: 2 mg/L (ppm)

Found at 2 providers

Chromium, Hex

Detected: 0.1 UG/L (ppb)

Found at 3 providers

Selenium

Detected: 2.9 UG/L (ppb)

5/8/2025

Disinfection Byproducts

Formed when chlorine used to disinfect water reacts with organic matter

Totalhaloaceticacids (HAA5)

Detected: 23 UG/L (ppb)

Found at 16 providers

TTHM

Detected: 91 UG/L (ppb)

Found at 16 providers

A group of disinfection byproducts formed when chlorine reacts with organic matter. Long-term exposure above the legal limit has been linked to increased cancer risk in some studies.

Chloroform

Detected: 29 UG/L (ppb)

Found at 15 providers

One of the individual trihalomethane disinfection byproducts, formed when chlorine reacts with organic matter.

Bromodichloromethane

Detected: 16 UG/L (ppb)

Found at 14 providers

Bromoform

Detected: 50 UG/L (ppb)

Found at 12 providers

Dibromochloromethane

Detected: 35 UG/L (ppb)

Found at 12 providers

Inorganics

Common dissolved minerals and salts, e.g. nitrate, fluoride, chloride

Nitrate

Detected: 6.7 MG/L (ppm)

Found at 18 providers

Commonly from agricultural fertilizer runoff or septic systems. Above the legal limit, it's an immediate concern especially for infants.

Fluoride

Detected: 2.6 MG/L (ppm)

Found at 8 providers

Often added deliberately for dental health; can also occur naturally.

Chloride

Detected: 210 MG/L (ppm)

Found at 8 providers

Sulfate

Detected: 60 MG/L (ppm)

Found at 7 providers

Nitrate-Nitrite

Detected: 0.56 MG/L (ppm)

Found at 3 providers

Minerals

Everyday minerals that mainly affect taste and water hardness

Magnesium

Detected: 15 MG/L (ppm)

Found at 8 providers

Sodium

Detected: 160 MG/L (ppm)

Found at 8 providers

Calcium

Detected: 46 MG/L (ppm)

Found at 8 providers

Potassium

Detected: 4 MG/L (ppm)

Found at 3 providers

Properties

General water characteristics like pH, hardness, and cloudiness (turbidity)

Gross Alpha Particle Activity

Detected: 82.8 PCI/L

Found at 9 providers

Langelier Index (pH(s))

Detected: -0.13 LANG

Found at 7 providers

Hardness, Total (ASCACO3)

Detected: 120 MG/L (ppm)

Found at 8 providers

Detected: 8.7 PH

Found at 7 providers

A measure of how acidic or basic the water is (7 is neutral). Affects taste and plumbing, not a direct health measure.

Orthophosphate

Detected: 0.23 MG/L (ppm)

10/28/2025

Calculated Parameters

Values worked out mathematically from other test results, not measured directly

Alkalinity, Bicarbonate

Detected: 320 MG/L (ppm)

Found at 9 providers

Alkalinity, Carbonate

Detected: 57 MG/L (ppm)

Found at 4 providers

Other

Additional substances tested that don't fit neatly into the categories above

Conductivity (at 25°C)

Detected: 910 UMHO/CM

Found at 10 providers

Dichloroaceticacid

Detected: 9.3 UG/L (ppb)

Found at 14 providers

Trichloroaceticacid

Detected: 11 UG/L (ppb)

Found at 12 providers

Turbidity

Detected: 10 NTU

Found at 10 providers

A measure of water cloudiness from suspended particles.

Color

Detected: 180 UNITS

Found at 11 providers

Dibromoaceticacid

Detected: 19 UG/L (ppb)

Found at 12 providers

Aggressive Index

Detected: 12 AGGR

Found at 7 providers

Alkalinity, Total

Detected: 360 MG/L (ppm)

Found at 9 providers

TDS

Detected: 750 MG/L (ppm)

Found at 8 providers

Gross Beta Particle Activity

Detected: 6.9 PCI/L

10/30/2025

Monobromoaceticacid

Detected: 2 UG/L (ppb)

Found at 6 providers

Carbon, Total

Detected: 2.3 MG/L (ppm)

Found at 3 providers

Radium-228

Detected: 0.824 PCI/L

Found at 2 providers

Odor

Detected: 1.2 TON

10/6/2025

Adsorbableorganicfluorine

Detected: 830 NG/L (ppt)

1/7/2025

Monochloroaceticacid

Detected: 2.6 UG/L (ppb)

Found at 2 providers

Filtration considerations: General system types, not a specific product recommendation.

Contaminant	Whole-House Carbon	Under-Sink RO	Under-Sink Carbon
Total Trihalomethanes (TTHM)	Yes	Yes	Yes
Haloacetic Acids (HAA5)	Yes	Yes	Yes
Chloroform	Yes	Yes	Yes
Chlorine / Taste	Yes	Yes	Yes
Sediment / Turbidity	Yes	Yes	Yes
Trichloroethylene	Yes	Yes	Yes
Tetrachloroethylene	Yes	Yes	Yes
cis-1,2-Dichloroethylene	Yes	Yes	Yes
1,1-Dichloroethylene	Yes	Yes	Yes
Bromoform	Yes	Yes	Yes
Bromodichloromethane	Yes	Yes	Yes
Dibromochloromethane	Yes	Yes	Yes
1,1,2-Trichloroethane	Yes	Yes	Yes
Vinyl Chloride	Yes	Yes	Yes
Carbon Tetrachloride	Yes	Yes	Yes
Benzene	Yes	Yes	Yes
Toluene	Yes	Yes	Yes
Xylene	Yes	Yes	Yes
Totalhaloaceticacids (HAA5)	Yes	Yes	Yes
Lead	Partial	Yes	Partial
Arsenic	Partial	Yes	Partial
Chromium-6 (Hexavalent)	Partial	Yes	Partial
Copper	Partial	Yes	Partial
Combined Uranium	Partial	Yes	Partial
PFOA	Partial	Yes*	Partial
PFOS	Partial	Yes*	Partial
Nitrate	Partial	Yes	Partial
Combined Radium	Partial	Yes	Partial
Copper, Free	Partial	Yes	Partial
Combined Uranium	Partial	Yes	Partial
Conductivity (at 25°C)	Partial	Yes	Partial
Dichloroaceticacid	Partial	Yes	Partial
Trichloroaceticacid	Partial	Yes	Partial
Fluoride	Partial	Yes	Partial
Aluminum	Partial	Yes	Partial
Color	Partial	Yes	Partial
Barium	Partial	Yes	Partial
Dibromoaceticacid	Partial	Yes	Partial
Aggressive Index	Partial	Yes	Partial
Alkalinity, Total	Partial	Yes	Partial
TDS	Partial	Yes	Partial
Chloride	Partial	Yes	Partial
Sulfate	Partial	Yes	Partial
Iron	Partial	Yes	Partial
Manganese	Partial	Yes	Partial
Zinc	Partial	Yes	Partial
Gross Beta Particle Activity	Partial	Yes	Partial
Monobromoaceticacid	Partial	Yes	Partial
Nitrate-Nitrite	Partial	Yes	Partial
Chromium, Hex	Partial	Yes	Partial
Carbon, Total	Partial	Yes	Partial
Odor	Partial	Yes	Partial
Selenium	Partial	Yes	Partial
Adsorbableorganicfluorine	Partial	Yes	Partial
Monochloroaceticacid	Partial	Yes	Partial
Coliform Bacteria (indicator)	No	Yes	No
Gross Alpha Particle Activity	No	No	No
Langelier Index (pH(s))	No	No	No
Magnesium	No	Partial	No
Sodium	No	Partial	No
Calcium	No	Partial	No
Alkalinity, Bicarbonate	No	No	No
Alkalinity, Carbonate	No	No	No
Hardness, Total (ASCACO3)	No	No	No
pH	No	No	No
Potassium	No	Partial	No
Orthophosphate	No	No	No

Browse by city

Individual water providers

HANFORD, CITY OF No violations on file — pop. 62,127 — serves HANFORD
LEMOORE, CITY OF Older violation on record — pop. 27,185 — serves LEMOORE
CORCORAN, CITY OF No violations on file — pop. 22,808 — serves CORCORAN
LEMOORE NAVAL AIR STATION No violations on file — pop. 15,000
AVENAL, CITY OF Open violation — pop. 13,696 — serves AVENAL
ADOLFO'S No violations on file — pop. 7,000
FIRESIDE RESTAURANT No violations on file — pop. 5,000
ARMONA COMMUNITY SERVICES DIST No violations on file — pop. 4,143
HANFORD JOINT UNION H.S. EAST CAMPUS No violations on file — pop. 3,000
FLEET RESERVE ASSOCIATION No violations on file — pop. 3,000
HANFORD ICE COMPANY No violations on file — pop. 3,000
HOME GARDEN CSD Older violation on record — pop. 1,750

STRATFORD PUD No violations on file — pop. 1,277
KETTLEMAN CITY CSD Open violation — pop. 1,242 — serves KETTLEMAN CITY
TIO TOCHO'S No violations on file — pop. 1,000
REEF CITY CAFE No violations on file — pop. 1,000
KINGS RIVER HARDWICK SCHOOL No violations on file — pop. 908
CENTRAL VALLEY MEAT CO INC No violations on file — pop. 812
ARMSTRONG RUBBER CO No violations on file — pop. 750
PIONEER ELEMENTARY SCHOOL No violations on file — pop. 750
LA CASA PARK No violations on file — pop. 600
WSL - SURF RANCH No violations on file — pop. 535
COS-HANFORD CENTER Older violation on record — pop. 515
KIT CARSON ELEM SCHOOL Older violation on record — pop. 510
CURTIS WATER COMPANY No violations on file — pop. 500
ISLAND UNION SCHOOL No violations on file — pop. 416
SUNSET VISTA ESTATES MHP No violations on file — pop. 400
LAKESIDE ELEMENTARY SCHOOL No violations on file — pop. 388
NICHOLS FARMS No violations on file — pop. 375
HANFORD FIRST BAPTIST CHURCH No violations on file — pop. 350
KETTLEMAN CITY ELEMENTARY No violations on file — pop. 350
HORIZON MOBILE HOME PARK No violations on file — pop. 335
CENTRAL UNION ELEMENTARY Older violation on record — pop. 320
HAMMOND WATER SYSTEM No violations on file — pop. 300
JACKSON LAKES GOLF COURSE No violations on file — pop. 300
TOM S MEAT SERVICE No violations on file — pop. 300
MARY IMMACULATE QUEEN SCHOOL No violations on file — pop. 280
KINGS OUTREACH BOYS RANCH No violations on file — pop. 200
MARTIN S MEAT PROCESSING No violations on file — pop. 200
A & M LIVESTOCK AUCTION No violations on file — pop. 200
SUNSET ESTATES MUTUAL WATER CO No violations on file — pop. 180
HANFORD CHRISTIAN SCHOOL No violations on file — pop. 175
KEENAN FARMS INC. No violations on file — pop. 174
WARMERDAM PACKING LLC No violations on file — pop. 150
SUNNY ACRES MUTUAL WATER COMPA No violations on file — pop. 130
BURRIS PARK No violations on file — pop. 126
BOSTON RANCH J G VOSWELL CO No violations on file — pop. 110
HICKEY PARK No violations on file — pop. 104
SANTA ROSA RANCHERIA No violations on file — pop. 100
LEON'S MARKET No violations on file — pop. 100
BUY & SPLIT No violations on file — pop. 100
HOMEGROWN COLD STORAGE No violations on file — pop. 100
STANDARD REGISTER CO No violations on file — pop. 80
HAMBLIN MUTUAL WATER CO Older violation on record — pop. 80
MORNING STAR KING, LLC No violations on file — pop. 80
AZCAL MANAGEMENT CO No violations on file — pop. 73
SIMCAL CHEMICAL COMPANY No violations on file — pop. 70
KEENAN FARMS No violations on file — pop. 70
DRAKE MOTEL No violations on file — pop. 70
HARDWICK WATER COMPANY Open violation — pop. 69
J G BOSWELL CO No violations on file — pop. 60
WESTSIDE HARVESTING, LLC No violations on file — pop. 53
J G BOSWELL-HEADQUARTERS No violations on file — pop. 50
LAKESIDE CAFE No violations on file — pop. 50
KINGS COUNTRY CLUB Older violation on record — pop. 50
NETTO AG INC. Older violation on record — pop. 50
15TH AVENUE No violations on file — pop. 50
BAKER COMMODITIES INC. Older violation on record — pop. 47
SOUTHLAKE FARMS Older violation on record — pop. 40
J G BOSWELL CO EL RICO OFFICE No violations on file — pop. 35
PARAMOUNT FARMING CO No violations on file — pop. 30
KINGS REST MOTEL Older violation on record — pop. 30
CESAR AREVALO RENTALS No violations on file — pop. 30
GRANGEVILLE MARKET No violations on file — pop. 30
HANFORD NUT SHOPPE No violations on file — pop. 26
FARMERS MINI MART No violations on file — pop. 26
HOMELAND RANCH J G BOSWELL No violations on file — pop. 25
MELIS GROCERY No violations on file — pop. 25
C AND L MINI MART AND CAFE No violations on file — pop. 25
EVA S PHILLIPINE AMERICAN FOOD No violations on file — pop. 25
LOUS PLACE No violations on file — pop. 25
S AND H FRUIT MARKET No violations on file — pop. 25
WESTLAKE FARMS - CAMP 22 No violations on file — pop. 25
WESTLAKE FARMS - CAMP ROJO No violations on file — pop. 25
FIRST LUTHERAN CHURCH SCHOOL No violations on file — pop. 25
WESTLAKE FARMS HQTS/COTTON GIN No violations on file — pop. 25
VIDAURRI - ADOBE HACIENDA Older violation on record — pop. 25
OVERLAND STOCKYARD Older violation on record — pop. 25
KINGSTON-LATON PARK No violations on file — pop. 25
LA FUENTE MARKET II(WA) Older violation on record — pop. 25
WESTSIDE LOCKERS No violations on file — pop. 25
KWIK BREAK DELI MART No violations on file — pop. 25
COUTURE FARMS Older violation on record — pop. 17
KWRA MRF Older violation on record — pop. 17
PACIFIC GAS AND ELECTRIC CO CA No violations on file — pop. 15
MEDINA No violations on file — pop. 7
DELTA VIEW SCHOOL Older violation on record — pop. 2
AIRPORT FOOD MARKET No violations on file — pop. 1
LAURA ROSE BAKERY No violations on file — pop. 1

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What is TTHM? Understanding EPA Violation Status Is Chromium-6 Dangerous? Whole-House vs. Under-Sink Filtration Lead and Copper in Drinking Water What is PFAS? Arsenic and Uranium Explained Nitrate and Fluoride Explained Water Hardness, pH, and Turbidity What is Coliform Bacteria?

Kings County, CA Water Quality Report

Violations on file

Contaminants found

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Individual water providers