Serving roughly 4,164 people in Merced County, California.
Data current as of July 2026
🔍Straight from EPA
🧪Real Lab Results
📅Updated Quarterly
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Results for PLANADA CSD
1 water provider directly on file, serving roughly 4,164 people in Merced County, California.
Quick answer: PLANADA CSD currently has an open health-based violation on file: Lead And Copper Rule Revisions, a compliance issue since 10/17/2024. This is active, not historical — see the violation detail below for what EPA's enforcement record shows.
Lead Summary
PFBS
PFOS
PFHXS
Dibromochloromethane
Aggressive Index
Magnesium
Potassium
Sodium
Calcium
Alkalinity, Total
Alkalinity, Bicarbonate
Hardness, Total (ASCACO3)
TDS
Chloride
Sulfate
Fluoride
Nitrate
Perfluorohexanesulfonicacid (PFHxS)
Perfluoroctanesulfonicacid (PFOS)
Perfluoroctanoicacid (PFOA)
Turbidity
pH
Vanadium, Total
Iron
Manganese
Chromium, Hex
Perchlorate
Barium
Arsenic
Conductivity (at 25°C)
Utility PLANADA CSDPopulation served 4,164Owner Local government
Open violation on file
Violations on file
Lead And Copper Rule Revisions
Currently open health violation
Found at 1 of 1 provider
Contaminants found
Metals
Naturally occurring or corrosion-related elements, e.g. lead, arsenic, copper
Lead Summary
Detected: 0 mg/L (ppm)
12/31/2023
Vanadium, Total
Detected: 13 UG/L (ppb)
1/21/2025
Iron
Detected: 80 UG/L (ppb)
8/28/2025
Mostly an aesthetic issue (metallic taste, staining) rather than a health concern at typical levels.
Manganese
Detected: 20 UG/L (ppb)
8/28/2025
Mainly a taste/staining concern at typical levels; long-term neurological research at high chronic exposure is ongoing.
Chromium, Hex
Detected: 1.34 UG/L (ppb)
1/28/2025
Barium
Detected: 310 UG/L (ppb)
1/21/2025
Arsenic
Detected: 2.9 UG/L (ppb)
1/21/2025
Occurs naturally in some groundwater. Long-term exposure above the legal limit (10 ppb) has been linked to increased cancer risk and cardiovascular disease.
Disinfection Byproducts
Formed when chlorine used to disinfect water reacts with organic matter
Dibromochloromethane
Detected: 1 UG/L (ppb)
8/21/2025
Inorganics
Common dissolved minerals and salts, e.g. nitrate, fluoride, chloride
Chloride
Detected: 15 MG/L (ppm)
1/21/2025
Sulfate
Detected: 22 MG/L (ppm)
1/21/2025
Fluoride
Detected: 0.11 MG/L (ppm)
1/21/2025
Often added deliberately for dental health; can also occur naturally.
Nitrate
Detected: 8.1 MG/L (ppm)
8/28/2025
Commonly from agricultural fertilizer runoff or septic systems. Above the legal limit, it's an immediate concern especially for infants.
Minerals
Everyday minerals that mainly affect taste and water hardness
Magnesium
Detected: 17 MG/L (ppm)
2/11/2025
Potassium
Detected: 7.2 MG/L (ppm)
1/21/2025
Sodium
Detected: 34 MG/L (ppm)
1/21/2025
Calcium
Detected: 51 MG/L (ppm)
1/21/2025
Properties
General water characteristics like pH, hardness, and cloudiness (turbidity)
Hardness, Total (ASCACO3)
Detected: 208 MG/L (ppm)
1/21/2025
pH
Detected: 7.48 PH
1/21/2025
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: 0.0037 µg/L (ppb)
9/10/2025
PFOS
Detected: 0.0147 µg/L (ppb)
9/10/2025
One of two PFAS with an enforceable federal limit (4 ppt) since 2024.
PFHXS
Detected: 0.0065 µg/L (ppb)
9/10/2025
Calculated Parameters
Values worked out mathematically from other test results, not measured directly
Alkalinity, Bicarbonate
Detected: 210 MG/L (ppm)
1/21/2025
Other
Additional substances tested that don't fit neatly into the categories above
Aggressive Index
Detected: 11.91 AGGR
1/21/2025
Alkalinity, Total
Detected: 210 MG/L (ppm)
1/21/2025
TDS
Detected: 310 MG/L (ppm)
1/21/2025
Perfluorohexanesulfonicacid (PFHxS)
Detected: 5.5 NG/L (ppt)
7/24/2025
Perfluoroctanesulfonicacid (PFOS)
Detected: 14 NG/L (ppt)
7/24/2025
One of two PFAS with an enforceable federal limit (4 ppt) since 2024.
Perfluoroctanoicacid (PFOA)
Detected: 2.3 NG/L (ppt)
7/24/2025
One of two PFAS with an enforceable federal limit (4 ppt) since 2024.
Turbidity
Detected: 0.6 NTU
1/21/2025
A measure of water cloudiness from suspended particles.
Perchlorate
Detected: 1.2 UG/L (ppb)
1/21/2025
Can occur naturally or from industrial/military sources; may interfere with thyroid function at elevated levels.
Conductivity (at 25°C)
Detected: 516 UMHO/CM
9/18/2025
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.