RUNNING SPRINGS WATER DISTRICT Water Quality Report
Serving roughly 5,268 people in San Bernardino County, California.
Data current as of July 2026
🔍Straight from EPA
🧪Real Lab Results
📅Updated Quarterly
🏠Local Expertise
Results for RUNNING SPRINGS WATER DISTRICT
1 water provider directly on file, serving roughly 5,268 people in San Bernardino County, California.
Quick answer: RUNNING SPRINGS WATER DISTRICT has no violations on file. One reading is worth knowing about: PFHPA was measured at 0.0128µg/L, among the highest of the 669 providers on file in this area. It's the most notable figure in this system's record among its 669 local peers.
Lead Summary
Lithium
PFHXA
PFHXS
PFPEA
PFOA
PFHPA
PFOS
PFBS
Pfpes
Pfhps
PFBA
Magnesium
Potassium
Sodium
Calcium
Hardness, Total (ASCACO3)
Alkalinity, Total
Alkalinity, Bicarbonate
TDS
Sulfate
Chloride
pH
Odor
Conductivity (at 25°C)
Lead
Totalhaloaceticacids (HAA5)
TTHM
Chloroform
Bromoform
Bromodichloromethane
Dibromochloromethane
Dichloroaceticacid
Dibromoaceticacid
Trichloroaceticacid
Copper, Free
Combined Uranium
Gross Alpha Particle Activity
Nitrate
Nitrate-Nitrite
Turbidity
Iron
Manganese
Color
Utility RUNNING SPRINGS WATER DISTRICTPopulation served 5,268Owner Local government
No violations on file
Contaminants found
Metals
Naturally occurring or corrosion-related elements, e.g. lead, arsenic, copper
Lead Summary
Detected: 0.0081 mg/L (ppm)
12/31/2025
Lead
Detected: 8.1 UG/L (ppb)
9/15/2025
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.
Copper, Free
Detected: 100 UG/L (ppb)
9/16/2025
Combined Uranium
Detected: 18 PCI/L
8/11/2025
A naturally occurring radioactive metal. Long-term exposure above the legal limit is associated with kidney effects and increased cancer risk.
Iron
Detected: 280 UG/L (ppb)
4/23/2025
Mostly an aesthetic issue (metallic taste, staining) rather than a health concern at typical levels.
Manganese
Detected: 71 UG/L (ppb)
4/23/2025
Mainly a taste/staining concern at typical levels; long-term neurological research at high chronic exposure is ongoing.
Disinfection Byproducts
Formed when chlorine used to disinfect water reacts with organic matter
Totalhaloaceticacids (HAA5)
Detected: 4.7 UG/L (ppb)
6/18/2025
TTHM
Detected: 15.6 UG/L (ppb)
9/24/2025
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: 3.1 UG/L (ppb)
9/24/2025
One of the individual trihalomethane disinfection byproducts, formed when chlorine reacts with organic matter.
Bromoform
Detected: 3.6 UG/L (ppb)
9/24/2025
Bromodichloromethane
Detected: 4.1 UG/L (ppb)
9/24/2025
Dibromochloromethane
Detected: 4.8 UG/L (ppb)
9/24/2025
Inorganics
Common dissolved minerals and salts, e.g. nitrate, fluoride, chloride
Sulfate
Detected: 3 MG/L (ppm)
6/11/2025
Chloride
Detected: 3.5 MG/L (ppm)
6/11/2025
Nitrate
Detected: 0.94 MG/L (ppm)
8/6/2025
Commonly from agricultural fertilizer runoff or septic systems. Above the legal limit, it's an immediate concern especially for infants.
Nitrate-Nitrite
Detected: 0.66 MG/L (ppm)
4/23/2025
Minerals
Everyday minerals that mainly affect taste and water hardness
Magnesium
Detected: 5.1 MG/L (ppm)
6/11/2025
Potassium
Detected: 1.8 MG/L (ppm)
6/11/2025
Sodium
Detected: 8.6 MG/L (ppm)
6/11/2025
Calcium
Detected: 21 MG/L (ppm)
6/11/2025
Properties
General water characteristics like pH, hardness, and cloudiness (turbidity)
Hardness, Total (ASCACO3)
Detected: 74 MG/L (ppm)
6/11/2025
pH
Detected: 7.7 PH
6/11/2025
A measure of how acidic or basic the water is (7 is neutral). Affects taste and plumbing, not a direct health measure.
Gross Alpha Particle Activity
Detected: 14 PCI/L
8/11/2025
PFAS & Emerging Contaminants
Human-made "forever chemicals" and other substances not yet fully regulated
Lithium
Detected: 13.6 µg/L (ppb)
7/29/2025
Occurs naturally in some groundwater. Not currently federally regulated in drinking water.
PFHXA
Detected: 0.0045 µg/L (ppb)
7/29/2025
PFHXS
Detected: 0.0042 µg/L (ppb)
7/29/2025
PFPEA
Detected: 0.0059 µg/L (ppb)
7/29/2025
PFOA
Detected: 0.0159 µg/L (ppb)
7/29/2025
One of two PFAS with an enforceable federal limit (4 ppt) since 2024.
PFHPA
Detected: 0.0128 µg/L (ppb)
7/29/2025
PFOS
Detected: 0.2365 µg/L (ppb)
7/29/2025
One of two PFAS with an enforceable federal limit (4 ppt) since 2024.
PFBS
Detected: 0.0117 µg/L (ppb)
7/29/2025
Pfpes
Detected: 0.0108 µg/L (ppb)
7/29/2025
Pfhps
Detected: 0.0055 µg/L (ppb)
7/29/2025
PFBA
Detected: 0.0056 µg/L (ppb)
7/29/2025
Calculated Parameters
Values worked out mathematically from other test results, not measured directly
Alkalinity, Bicarbonate
Detected: 110 MG/L (ppm)
6/11/2025
Other
Additional substances tested that don't fit neatly into the categories above
Alkalinity, Total
Detected: 93 MG/L (ppm)
6/11/2025
TDS
Detected: 140 MG/L (ppm)
6/11/2025
Odor
Detected: 1 TON
9/17/2025
Conductivity (at 25°C)
Detected: 150 UMHO/CM
6/11/2025
Dichloroaceticacid
Detected: 1.7 UG/L (ppb)
6/18/2025
Dibromoaceticacid
Detected: 2 UG/L (ppb)
6/18/2025
Trichloroaceticacid
Detected: 1 UG/L (ppb)
6/18/2025
Turbidity
Detected: 0.26 NTU
5/21/2025
A measure of water cloudiness from suspended particles.
Color
Detected: 15 UNITS
5/21/2025
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.