GOLDEN STATE WC - PLACENTIA/YORBA LINDA Water Quality Report
Serving roughly 50,381 people in Orange County, California.
Data current as of July 2026
🔍Straight from EPA
🧪Real Lab Results
📅Updated Quarterly
🏠Local Expertise
Results for GOLDEN STATE WC - PLACENTIA/YORBA LINDA
1 water provider directly on file, serving roughly 50,381 people in Orange County, California.
Quick answer: GOLDEN STATE WC - PLACENTIA/YORBA LINDA has no violations on file. One reading is worth knowing about: Nitrate-Nitrite was measured at 6.06MG/L, among the highest of the 167 providers on file in this area. It's the most notable figure in this system's record among its 167 local peers.
Lead Summary
PFBS
PFOS
PFOA
PFHXA
PFPEA
PFHXS
Lithium
PFBA
TDS
Magnesium
Potassium
Sodium
Calcium
Hardness, Total (ASCACO3)
Bromide
Alkalinity, Bicarbonate
Alkalinity, Total
Carbon, Total
Chloride
Sulfate
Silica
Fluoride
Nitrate-Nitrite
Nitrate
Perfluorobutanesulfonicacid (PFBS)
Perfluoroheptanoicacid (PFHPA)
Perfluorohexanesulfonicacid (PFHxS)
Perfluoroctanesulfonicacid (PFOS)
Perfluoroctanoicacid (PFOA)
Perfluorohexanoicacid (PFHXA)
Perfluorobutanoicacid (PFBA)
Perfluoropentanoicacid (PFPEA)
Gross Alpha Particle Activity
pH
Boron, Total
Vanadium, Total
Iron
TTHM
Manganese
Chromium, Hex
Chloroform
Perchlorate
Nickel
Barium
Arsenic
Chlorate
Conductivity (at 25°C)
Lead
Totalhaloaceticacids (HAA5)
Bromoform
Bromodichloromethane
Dibromochloromethane
Utility GOLDEN STATE WC - PLACENTIA/YORBA LINDAPopulation served 50,381Owner Private
No violations on file
Contaminants found
Metals
Naturally occurring or corrosion-related elements, e.g. lead, arsenic, copper
Lead Summary
Detected: 0.0025 mg/L (ppm)
12/31/2025
Vanadium, Total
Detected: 3.3 UG/L (ppb)
4/17/2025
Iron
Detected: 9.3 UG/L (ppb)
4/17/2025
Mostly an aesthetic issue (metallic taste, staining) rather than a health concern at typical levels.
Manganese
Detected: 1.5 UG/L (ppb)
7/31/2025
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)
4/17/2025
Nickel
Detected: 2.2 UG/L (ppb)
4/17/2025
Barium
Detected: 60.2 UG/L (ppb)
4/17/2025
Arsenic
Detected: 1.3 UG/L (ppb)
4/17/2025
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
Detected: 4.7 UG/L (ppb)
7/16/2025
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.
Disinfection Byproducts
Formed when chlorine used to disinfect water reacts with organic matter
TTHM
Detected: 0.5 UG/L (ppb)
10/16/2025
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: 0.5 UG/L (ppb)
10/16/2025
One of the individual trihalomethane disinfection byproducts, formed when chlorine reacts with organic matter.
Totalhaloaceticacids (HAA5)
Detected: 3.7 UG/L (ppb)
8/12/2025
Bromoform
Detected: 3.3 UG/L (ppb)
2/11/2025
Bromodichloromethane
Detected: 7 UG/L (ppb)
2/11/2025
Dibromochloromethane
Detected: 9.2 UG/L (ppb)
2/11/2025
Inorganics
Common dissolved minerals and salts, e.g. nitrate, fluoride, chloride
Chloride
Detected: 32.2 MG/L (ppm)
7/31/2025
Sulfate
Detected: 33.2 MG/L (ppm)
7/31/2025
Fluoride
Detected: 0.47 MG/L (ppm)
4/17/2025
Often added deliberately for dental health; can also occur naturally.
Nitrate-Nitrite
Detected: 6.06 MG/L (ppm)
7/14/2025
Nitrate
Detected: 1.27 MG/L (ppm)
7/31/2025
Commonly from agricultural fertilizer runoff or septic systems. Above the legal limit, it's an immediate concern especially for infants.
Boron, Total
Detected: 190 UG/L (ppb)
4/17/2025
Minerals
Everyday minerals that mainly affect taste and water hardness
Magnesium
Detected: 12.4 MG/L (ppm)
4/17/2025
Potassium
Detected: 3.7 MG/L (ppm)
4/17/2025
Sodium
Detected: 60 MG/L (ppm)
4/17/2025
Calcium
Detected: 62.9 MG/L (ppm)
5/19/2025
Properties
General water characteristics like pH, hardness, and cloudiness (turbidity)
Hardness, Total (ASCACO3)
Detected: 211 MG/L (ppm)
4/17/2025
Gross Alpha Particle Activity
Detected: 1.89 PCI/L
1/9/2025
pH
Detected: 7.9 PH
7/31/2025
A measure of how acidic or basic the water is (7 is neutral). Affects taste and plumbing, not a direct health measure.
PFAS & Emerging Contaminants
Human-made "forever chemicals" and other substances not yet fully regulated
PFBS
Detected: 0.0056 µg/L (ppb)
1/27/2025
PFOS
Detected: 0.0065 µg/L (ppb)
1/27/2025
One of two PFAS with an enforceable federal limit (4 ppt) since 2024.
PFOA
Detected: 0.0059 µg/L (ppb)
1/27/2025
One of two PFAS with an enforceable federal limit (4 ppt) since 2024.
PFHXA
Detected: 0.0074 µg/L (ppb)
1/27/2025
PFPEA
Detected: 0.0081 µg/L (ppb)
1/27/2025
PFHXS
Detected: 0.0036 µg/L (ppb)
1/27/2025
Lithium
Detected: 9.2057 µg/L (ppb)
1/27/2025
Occurs naturally in some groundwater. Not currently federally regulated in drinking water.
PFBA
Detected: 0.0054 µg/L (ppb)
1/27/2025
VOCs (Volatile Organic Compounds)
Industrial solvents and fuel-related chemicals that evaporate easily
Bromide
Detected: 0.06 MG/L (ppm)
7/31/2025
Calculated Parameters
Values worked out mathematically from other test results, not measured directly
Alkalinity, Bicarbonate
Detected: 169 MG/L (ppm)
4/17/2025
Other
Additional substances tested that don't fit neatly into the categories above
TDS
Detected: 700 MG/L (ppm)
10/6/2025
Alkalinity, Total
Detected: 91.6 MG/L (ppm)
7/31/2025
Carbon, Total
Detected: 0.19 MG/L (ppm)
7/31/2025
Silica
Detected: 13.9 MG/L (ppm)
7/31/2025
Perfluorobutanesulfonicacid (PFBS)
Detected: 4.1 NG/L (ppt)
7/31/2025
Perfluoroheptanoicacid (PFHPA)
Detected: 3.3 NG/L (ppt)
7/31/2025
Perfluorohexanesulfonicacid (PFHxS)
Detected: 3.3 NG/L (ppt)
7/31/2025
Perfluoroctanesulfonicacid (PFOS)
Detected: 7.8 NG/L (ppt)
7/31/2025
One of two PFAS with an enforceable federal limit (4 ppt) since 2024.
Perfluoroctanoicacid (PFOA)
Detected: 8.1 NG/L (ppt)
7/31/2025
One of two PFAS with an enforceable federal limit (4 ppt) since 2024.
Perfluorohexanoicacid (PFHXA)
Detected: 8.8 NG/L (ppt)
7/31/2025
Perfluorobutanoicacid (PFBA)
Detected: 5.4 NG/L (ppt)
7/31/2025
Perfluoropentanoicacid (PFPEA)
Detected: 10.2 NG/L (ppt)
7/31/2025
Perchlorate
Detected: 2.8 UG/L (ppb)
7/14/2025
Can occur naturally or from industrial/military sources; may interfere with thyroid function at elevated levels.
Chlorate
Detected: 24 UG/L (ppb)
4/17/2025
Conductivity (at 25°C)
Detected: 356 UMHO/CM
7/31/2025
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.