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Water Quality Lookup / California / Sacramento County / GOLDEN STATE WATER CO. - CORDOVA
EPA SDWIS ยท Sacramento County, California

GOLDEN STATE WATER CO. - CORDOVA Water Quality Report

Serving roughly 47,161 people in Sacramento County, California.

Data current as of July 2026
๐Ÿ”Straight from EPA
๐ŸงชReal Lab Results
๐Ÿ“…Updated Quarterly
๐Ÿ Local Expertise
Results for GOLDEN STATE WATER CO. - CORDOVA

1 water provider directly on file, serving roughly 47,161 people in Sacramento County, California.

Quick answer: GOLDEN STATE WATER CO. - CORDOVA has no violations on file. One reading is worth knowing about: Perchlorate was measured at 40UG/L, among the highest of the 467 providers on file in this area. It's the most notable figure in this system's record among its 467 local peers.
Utility GOLDEN STATE WATER CO. - CORDOVA Population served 47,161 Owner Private
No violations on file

Contaminants found

Metals
Naturally occurring or corrosion-related elements, e.g. lead, arsenic, copper
Lead Summary
Detected: 0 mg/L (ppm)
12/31/2024
Aluminum
Detected: 21 UG/L (ppb)
8/5/2025
Combined Uranium
Detected: 5.8 PCI/L
7/1/2025
A naturally occurring radioactive metal. Long-term exposure above the legal limit is associated with kidney effects and increased cancer risk.
Iron
Detected: 140 UG/L (ppb)
10/21/2025
Mostly an aesthetic issue (metallic taste, staining) rather than a health concern at typical levels.
Manganese
Detected: 17 UG/L (ppb)
10/22/2025
Mainly a taste/staining concern at typical levels; long-term neurological research at high chronic exposure is ongoing.
Chromium, Hex
Detected: 0.17 UG/L (ppb)
3/11/2025
Chromium
Detected: 2.5 UG/L (ppb)
5/20/2025
Occurs in two forms โ€” trivalent (an essential nutrient in trace amounts) and hexavalent (linked to increased cancer risk).
Barium
Detected: 150 UG/L (ppb)
5/20/2025
Copper, Free
Detected: 7.5 UG/L (ppb)
3/4/2025
Zinc
Detected: 5.3 UG/L (ppb)
3/4/2025
Disinfection Byproducts
Formed when chlorine used to disinfect water reacts with organic matter
Chloroform
Detected: 0.59 UG/L (ppb)
1/7/2025
One of the individual trihalomethane disinfection byproducts, formed when chlorine reacts with organic matter.
Inorganics
Common dissolved minerals and salts, e.g. nitrate, fluoride, chloride
Nitrate
Detected: 1.4 MG/L (ppm)
7/22/2025
Commonly from agricultural fertilizer runoff or septic systems. Above the legal limit, it's an immediate concern especially for infants.
Sulfate
Detected: 28 MG/L (ppm)
5/20/2025
Chloride
Detected: 19 MG/L (ppm)
5/20/2025
Fluoride
Detected: 0.089 MG/L (ppm)
5/20/2025
Often added deliberately for dental health; can also occur naturally.
Minerals
Everyday minerals that mainly affect taste and water hardness
Magnesium
Detected: 27 MG/L (ppm)
5/20/2025
Potassium
Detected: 2.4 MG/L (ppm)
5/20/2025
Sodium
Detected: 22 MG/L (ppm)
5/20/2025
Calcium
Detected: 66 MG/L (ppm)
5/20/2025
Properties
General water characteristics like pH, hardness, and cloudiness (turbidity)
Hardness, Total (ASCACO3)
Detected: 270 MG/L (ppm)
5/20/2025
Gross Alpha Particle Activity
Detected: 6.85 PCI/L
7/1/2025
pH
Detected: 7.6 PH
8/5/2025
A measure of how acidic or basic the water is (7 is neutral). Affects taste and plumbing, not a direct health measure.
VOCs (Volatile Organic Compounds)
Industrial solvents and fuel-related chemicals that evaporate easily
Trichloroethylene
Detected: 1 UG/L (ppb)
10/21/2025
Calculated Parameters
Values worked out mathematically from other test results, not measured directly
Alkalinity, Bicarbonate
Detected: 25 MG/L (ppm)
10/20/2025
Other
Additional substances tested that don't fit neatly into the categories above
Alkalinity, Total
Detected: 25 MG/L (ppm)
10/20/2025
Carbon, Total
Detected: 0.82 MG/L (ppm)
10/20/2025
Perchlorate
Detected: 40 UG/L (ppb)
10/28/2025
Can occur naturally or from industrial/military sources; may interfere with thyroid function at elevated levels.
TDS
Detected: 390 MG/L (ppm)
5/20/2025
Perfluoroctanesulfonicacid (PFOS)
Detected: 2.4 NG/L (ppt)
2/19/2025
One of two PFAS with an enforceable federal limit (4 ppt) since 2024.
Perfluoroheptanoicacid (PFHPA)
Detected: 2.2 NG/L (ppt)
2/19/2025
Perfluorohexanesulfonicacid (PFHxS)
Detected: 4 NG/L (ppt)
2/19/2025
Perfluoroctanoicacid (PFOA)
Detected: 3.7 NG/L (ppt)
2/19/2025
One of two PFAS with an enforceable federal limit (4 ppt) since 2024.
Perfluorohexanoicacid (PFHXA)
Detected: 4 NG/L (ppt)
2/19/2025
Perfluoropentanoicacid (PFPEA)
Detected: 4 NG/L (ppt)
2/19/2025
Turbidity
Detected: 0.35 NTU
5/20/2025
A measure of water cloudiness from suspended particles.
Radium-226
Detected: 0.95 PCI/L
4/1/2025
1, 4-Dioxane
Detected: 0.2 UG/L (ppb)
10/21/2025
Conductivity (at 25ยฐC)
Detected: 610 UMHO/CM
5/20/2025
Odor
Detected: 2 TON
3/4/2025
Color
Detected: 10 UNITS
3/4/2025
Filtration considerations: See the table below for how whole-house carbon, under-sink reverse osmosis, and under-sink carbon systems compare against what's actually on file here. These are general system types, not a specific product recommendation.
Contaminant Whole-House Carbon Under-Sink RO Under-Sink Carbon
Total Trihalomethanes (TTHM)YesYesYes
Haloacetic Acids (HAA5)YesYesYes
ChloroformYesYesYes
Chlorine / TasteYesYesYes
Sediment / TurbidityYesYesYes
TrichloroethyleneYesYesYes
TetrachloroethyleneYesYesYes
cis-1,2-DichloroethyleneYesYesYes
1,1-DichloroethyleneYesYesYes
BromoformYesYesYes
BromodichloromethaneYesYesYes
DibromochloromethaneYesYesYes
1,1,2-TrichloroethaneYesYesYes
Vinyl ChlorideYesYesYes
Carbon TetrachlorideYesYesYes
BenzeneYesYesYes
TolueneYesYesYes
XyleneYesYesYes
LeadPartialYesPartial
ArsenicPartialYesPartial
Chromium-6 (Hexavalent)PartialYesPartial
CopperPartialYesPartial
Combined UraniumPartialYesPartial
PFOAPartialYes*Partial
PFOSPartialYes*Partial
NitratePartialYesPartial
Combined RadiumPartialYesPartial
Alkalinity, TotalPartialYesPartial
Carbon, TotalPartialYesPartial
PerchloratePartialYesPartial
AluminumPartialYesPartial
TDSPartialYesPartial
SulfatePartialYesPartial
ChloridePartialYesPartial
FluoridePartialYesPartial
Perfluoroctanesulfonicacid (PFOS)PartialYesPartial
Perfluoroheptanoicacid (PFHPA)PartialYesPartial
Perfluorohexanesulfonicacid (PFHxS)PartialYesPartial
Perfluoroctanoicacid (PFOA)PartialYesPartial
Perfluorohexanoicacid (PFHXA)PartialYesPartial
Perfluoropentanoicacid (PFPEA)PartialYesPartial
Radium-226PartialYesPartial
Combined UraniumPartialYesPartial
1, 4-DioxanePartialYesPartial
IronPartialYesPartial
ManganesePartialYesPartial
Chromium, HexPartialYesPartial
ChromiumPartialYesPartial
BariumPartialYesPartial
Conductivity (at 25ยฐC)PartialYesPartial
OdorPartialYesPartial
Copper, FreePartialYesPartial
ZincPartialYesPartial
ColorPartialYesPartial
Coliform Bacteria (indicator)NoYesNo
Alkalinity, BicarbonateNoNoNo
MagnesiumNoPartialNo
PotassiumNoPartialNo
SodiumNoPartialNo
CalciumNoPartialNo
Hardness, Total (ASCACO3)NoNoNo
Gross Alpha Particle ActivityNoNoNo
pHNoNoNo

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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?