PLEASANT VALLEY MUTUAL WATER CO Water Quality Report
Serving roughly 5,000 people in Ventura County, California.
Data current as of July 2026
🔍Straight from EPA
🧪Real Lab Results
📅Updated Quarterly
🏠Local Expertise
Results for PLEASANT VALLEY MUTUAL WATER CO
1 water provider directly on file, serving roughly 5,000 people in Ventura County, California.
Quick answer: PLEASANT VALLEY MUTUAL WATER CO has no violations on file. One reading is worth knowing about: Perfluorohexanesulfonicacid (PFHxS) was measured at 6.9NG/L, among the highest of the 179 providers on file in this area. It's the most notable figure in this system's record among its 179 local peers.
Lead Summary
PFBA
Lithium
PFOA
PFOS
PFHXS
PFHXA
Manganese
Iron
Aggressive Index
Langelier Index (pH(s))
Magnesium
Potassium
Sodium
Hardness, Total (ASCACO3)
Calcium
Alkalinity, Total
Alkalinity, Bicarbonate
TDS
Sulfate
Chloride
Perfluorobutanesulfonicacid (PFBS)
Perfluoroheptanoicacid (PFHPA)
Perfluorohexanesulfonicacid (PFHxS)
Perfluoroctanesulfonicacid (PFOS)
Perfluoroctanoicacid (PFOA)
Perfluorohexanoicacid (PFHXA)
Perfluorobutanoicacid (PFBA)
Perfluoropentanoicacid (PFPEA)
Perfluoropentanesulfonicacid (PFPES)
Turbidity
pH, Field
Boron, Total
Zinc
Conductivity (at 25°C)
Totalhaloaceticacids (HAA5)
TTHM
Bromodichloromethane
Chloroform
Bromoform
Dibromochloromethane
Dichloroaceticacid
Dibromoaceticacid
Trichloroaceticacid
Monobromoaceticacid
Monochloroaceticacid
Utility PLEASANT VALLEY MUTUAL WATER COPopulation served 5,000Owner 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
Manganese
Detected: 80 UG/L (ppb)
10/8/2025
Mainly a taste/staining concern at typical levels; long-term neurological research at high chronic exposure is ongoing.
Iron
Detected: 60 UG/L (ppb)
10/8/2025
Mostly an aesthetic issue (metallic taste, staining) rather than a health concern at typical levels.
Zinc
Detected: 10 UG/L (ppb)
3/21/2025
Disinfection Byproducts
Formed when chlorine used to disinfect water reacts with organic matter
Totalhaloaceticacids (HAA5)
Detected: 6 UG/L (ppb)
9/10/2025
TTHM
Detected: 17 UG/L (ppb)
9/10/2025
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.
Bromodichloromethane
Detected: 1 UG/L (ppb)
9/10/2025
Chloroform
Detected: 1 UG/L (ppb)
9/10/2025
One of the individual trihalomethane disinfection byproducts, formed when chlorine reacts with organic matter.
Bromoform
Detected: 9 UG/L (ppb)
9/10/2025
Dibromochloromethane
Detected: 1 UG/L (ppb)
9/10/2025
Inorganics
Common dissolved minerals and salts, e.g. nitrate, fluoride, chloride
Sulfate
Detected: 572 MG/L (ppm)
7/9/2025
Chloride
Detected: 160 MG/L (ppm)
3/21/2025
Boron, Total
Detected: 400 UG/L (ppb)
3/21/2025
Minerals
Everyday minerals that mainly affect taste and water hardness
Magnesium
Detected: 65 MG/L (ppm)
3/21/2025
Potassium
Detected: 8 MG/L (ppm)
3/21/2025
Sodium
Detected: 110 MG/L (ppm)
3/21/2025
Calcium
Detected: 183 MG/L (ppm)
3/21/2025
Properties
General water characteristics like pH, hardness, and cloudiness (turbidity)
Langelier Index (pH(s))
Detected: 0.3 LANG
3/21/2025
Hardness, Total (ASCACO3)
Detected: 724 MG/L (ppm)
3/21/2025
pH, Field
Detected: 7.2 PH
3/21/2025
PFAS & Emerging Contaminants
Human-made "forever chemicals" and other substances not yet fully regulated
PFBA
Detected: 0.0051 µg/L (ppb)
1/17/2023
Lithium
Detected: 12 µg/L (ppb)
10/9/2023
Occurs naturally in some groundwater. Not currently federally regulated in drinking water.
PFOA
Detected: 0.0101 µg/L (ppb)
1/31/2024
One of two PFAS with an enforceable federal limit (4 ppt) since 2024.
PFOS
Detected: 0.011 µg/L (ppb)
10/9/2023
One of two PFAS with an enforceable federal limit (4 ppt) since 2024.
PFHXS
Detected: 0.0087 µg/L (ppb)
1/31/2024
PFHXA
Detected: 0.0041 µg/L (ppb)
10/9/2023
Calculated Parameters
Values worked out mathematically from other test results, not measured directly
Alkalinity, Bicarbonate
Detected: 280 MG/L (ppm)
3/21/2025
Other
Additional substances tested that don't fit neatly into the categories above
Aggressive Index
Detected: 12.2 AGGR
3/21/2025
Alkalinity, Total
Detected: 230 MG/L (ppm)
3/21/2025
TDS
Detected: 1480 MG/L (ppm)
7/9/2025
Perfluorobutanesulfonicacid (PFBS)
Detected: 2.2 NG/L (ppt)
7/24/2025
Perfluoroheptanoicacid (PFHPA)
Detected: 2.5 NG/L (ppt)
7/24/2025
Perfluorohexanesulfonicacid (PFHxS)
Detected: 6.9 NG/L (ppt)
10/8/2025
Perfluoroctanesulfonicacid (PFOS)
Detected: 2.5 NG/L (ppt)
10/8/2025
One of two PFAS with an enforceable federal limit (4 ppt) since 2024.
Perfluoroctanoicacid (PFOA)
Detected: 7.4 NG/L (ppt)
10/8/2025
One of two PFAS with an enforceable federal limit (4 ppt) since 2024.
Perfluorohexanoicacid (PFHXA)
Detected: 2.8 NG/L (ppt)
10/8/2025
Perfluorobutanoicacid (PFBA)
Detected: 3.4 NG/L (ppt)
10/8/2025
Perfluoropentanoicacid (PFPEA)
Detected: 2.5 NG/L (ppt)
10/8/2025
Perfluoropentanesulfonicacid (PFPES)
Detected: 2.2 NG/L (ppt)
1/16/2025
Turbidity
Detected: 0.2 NTU
3/21/2025
A measure of water cloudiness from suspended particles.
Conductivity (at 25°C)
Detected: 1850 UMHO/CM
3/21/2025
Dichloroaceticacid
Detected: 1 UG/L (ppb)
9/10/2025
Dibromoaceticacid
Detected: 4 UG/L (ppb)
9/10/2025
Trichloroaceticacid
Detected: 1 UG/L (ppb)
9/10/2025
Monobromoaceticacid
Detected: 2 UG/L (ppb)
6/19/2025
Monochloroaceticacid
Detected: 2 UG/L (ppb)
6/19/2025
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.