Serving roughly 3,862 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 WOODLANDS DEVELOPMENT
1 water provider directly on file, serving roughly 3,862 people in San Luis Obispo County, California.
Quick answer: WOODLANDS DEVELOPMENT has no violations on file. One reading is worth knowing about: Sulfate was measured at 500MG/L, among the highest of the 252 providers on file in this area. It's the most notable figure in this system's record among its 252 local peers.
Lead Summary
Aggressive Index
Temperature (CENTIGRADE)
Totalnitrogen (ASN)
Magnesium
Potassium
Sodium
Hardness, Total (ASCACO3)
Calcium
Alkalinity, Total
Alkalinity, Bicarbonate
TDS
Chloride
Sulfate
Nitrate
pH
Boron, Total
Iron
Conductivity (at 25°C)
Utility WOODLANDS DEVELOPMENTPopulation served 3,862Owner 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
Iron
Detected: 72 UG/L (ppb)
7/21/2025
Mostly an aesthetic issue (metallic taste, staining) rather than a health concern at typical levels.
Inorganics
Common dissolved minerals and salts, e.g. nitrate, fluoride, chloride
Chloride
Detected: 45 MG/L (ppm)
7/21/2025
Sulfate
Detected: 500 MG/L (ppm)
7/21/2025
Nitrate
Detected: 0.98 MG/L (ppm)
7/21/2025
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)
7/21/2025
Minerals
Everyday minerals that mainly affect taste and water hardness
Magnesium
Detected: 51 MG/L (ppm)
7/21/2025
Potassium
Detected: 3.6 MG/L (ppm)
7/21/2025
Sodium
Detected: 78 MG/L (ppm)
7/21/2025
Calcium
Detected: 150 MG/L (ppm)
7/21/2025
Properties
General water characteristics like pH, hardness, and cloudiness (turbidity)
Hardness, Total (ASCACO3)
Detected: 580 MG/L (ppm)
7/21/2025
pH
Detected: 7.62 PH
7/21/2025
A measure of how acidic or basic the water is (7 is neutral). Affects taste and plumbing, not a direct health measure.
Calculated Parameters
Values worked out mathematically from other test results, not measured directly
Alkalinity, Bicarbonate
Detected: 190 MG/L (ppm)
7/21/2025
Other
Additional substances tested that don't fit neatly into the categories above
Aggressive Index
Detected: 12.5 AGGR
7/21/2025
Temperature (CENTIGRADE)
Detected: 20 C
7/21/2025
Totalnitrogen (ASN)
Detected: 0.99 MG/L (ppm)
7/21/2025
Alkalinity, Total
Detected: 190 MG/L (ppm)
7/21/2025
TDS
Detected: 1100 MG/L (ppm)
7/21/2025
Conductivity (at 25°C)
Detected: 1400 UMHO/CM
7/21/2025
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.