GOLDEN STATE WATER COMPANY - NIPOMO Water Quality Report
Serving roughly 4,506 people in San Luis Obispo County, California.
Data current as of July 2026
🔍Straight from EPA
🧪Real Lab Results
📅Updated Quarterly
🏠Local Expertise
Results for GOLDEN STATE WATER COMPANY - NIPOMO
1 water provider directly on file, serving roughly 4,506 people in San Luis Obispo County, California.
Quick answer: GOLDEN STATE WATER COMPANY - NIPOMO has no violations on file and no single reading stands out against its peers (252 other providers in this area). It serves roughly 4,506 people, and the full breakdown below reflects everything EPA and California have on record for it.
Lead Summary
Lithium
PFPEA
Iron
Manganese
1, 2, 3-Trichloropropane
Nitrate
Utility GOLDEN STATE WATER COMPANY - NIPOMOPopulation served 4,506Owner Private
No violations on file
Contaminants found
Metals
Naturally occurring or corrosion-related elements, e.g. lead, arsenic, copper
Lead Summary
Detected: 0.0052 mg/L (ppm)
12/31/2023
Iron
Detected: 120 UG/L (ppb)
10/7/2025
Mostly an aesthetic issue (metallic taste, staining) rather than a health concern at typical levels.
Manganese
Detected: 42 UG/L (ppb)
10/7/2025
Mainly a taste/staining concern at typical levels; long-term neurological research at high chronic exposure is ongoing.
Inorganics
Common dissolved minerals and salts, e.g. nitrate, fluoride, chloride
Nitrate
Detected: 5.2 MG/L (ppm)
10/28/2025
Commonly from agricultural fertilizer runoff or septic systems. Above the legal limit, it's an immediate concern especially for infants.
PFAS & Emerging Contaminants
Human-made "forever chemicals" and other substances not yet fully regulated
Lithium
Detected: 10.7 µg/L (ppb)
7/23/2025
Occurs naturally in some groundwater. Not currently federally regulated in drinking water.
PFPEA
Detected: 0.0032 µg/L (ppb)
7/23/2025
VOCs (Volatile Organic Compounds)
Industrial solvents and fuel-related chemicals that evaporate easily
1, 2, 3-Trichloropropane
Detected: 0.0055 UG/L (ppb)
10/7/2025
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.