Serving roughly 8,766 people in San Bernardino County, California.
Data current as of July 2026
🔍Straight from EPA
🧪Real Lab Results
📅Updated Quarterly
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Results for NEEDLES, CITY OF
1 water provider directly on file, serving roughly 8,766 people in San Bernardino County, California.
Quick answer: NEEDLES, CITY OF has no violations on file. One reading is worth knowing about: Lithium was measured at 80.8µg/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
Lead
Totalhaloaceticacids (HAA5)
TTHM
Chloroform
Bromoform
Bromodichloromethane
Dibromochloromethane
Trichloroaceticacid
Dibromoaceticacid
Copper, Free
Magnesium
Sodium
Calcium
Alkalinity, Total
Alkalinity, Bicarbonate
Hardness, Total (ASCACO3)
TDS
Chloride
Sulfate
Fluoride
Nitrate
Turbidity
Gross Alpha Particle Activity
pH
Iron
Manganese
Chromium, Hex
Perchlorate
Barium
Arsenic
Zinc
Conductivity (at 25°C)
Utility NEEDLES, CITY OFPopulation served 8,766Owner Local government
Naturally occurring or corrosion-related elements, e.g. lead, arsenic, copper
Lead Summary
Detected: 0.0034 mg/L (ppm)
12/31/2025
Lead
Detected: 1.1 UG/L (ppb)
9/9/2025
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: 240 UG/L (ppb)
9/9/2025
Iron
Detected: 130 UG/L (ppb)
6/24/2025
Mostly an aesthetic issue (metallic taste, staining) rather than a health concern at typical levels.
Manganese
Detected: 570 UG/L (ppb)
6/24/2025
Mainly a taste/staining concern at typical levels; long-term neurological research at high chronic exposure is ongoing.
Chromium, Hex
Detected: 0.085 UG/L (ppb)
9/23/2025
Barium
Detected: 23 UG/L (ppb)
4/29/2025
Arsenic
Detected: 5.3 UG/L (ppb)
4/29/2025
Occurs naturally in some groundwater. Long-term exposure above the legal limit (10 ppb) has been linked to increased cancer risk and cardiovascular disease.
Zinc
Detected: 27 UG/L (ppb)
4/15/2025
Disinfection Byproducts
Formed when chlorine used to disinfect water reacts with organic matter
Totalhaloaceticacids (HAA5)
Detected: 7.2 UG/L (ppb)
4/8/2025
TTHM
Detected: 32.7 UG/L (ppb)
4/8/2025
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: 0.75 UG/L (ppb)
4/8/2025
One of the individual trihalomethane disinfection byproducts, formed when chlorine reacts with organic matter.
Bromoform
Detected: 15 UG/L (ppb)
4/8/2025
Bromodichloromethane
Detected: 4 UG/L (ppb)
4/8/2025
Dibromochloromethane
Detected: 13 UG/L (ppb)
4/8/2025
Inorganics
Common dissolved minerals and salts, e.g. nitrate, fluoride, chloride
Chloride
Detected: 260 MG/L (ppm)
4/29/2025
Sulfate
Detected: 380 MG/L (ppm)
4/29/2025
Fluoride
Detected: 1.5 MG/L (ppm)
4/29/2025
Often added deliberately for dental health; can also occur naturally.
Nitrate
Detected: 1.1 MG/L (ppm)
4/29/2025
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: 34 MG/L (ppm)
4/29/2025
Sodium
Detected: 240 MG/L (ppm)
4/29/2025
Calcium
Detected: 77 MG/L (ppm)
4/29/2025
Properties
General water characteristics like pH, hardness, and cloudiness (turbidity)
Hardness, Total (ASCACO3)
Detected: 330 MG/L (ppm)
4/29/2025
Gross Alpha Particle Activity
Detected: 6.15 PCI/L
4/29/2025
pH
Detected: 8.18 PH
4/29/2025
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
Lithium
Detected: 80.8 µg/L (ppb)
9/23/2025
Occurs naturally in some groundwater. Not currently federally regulated in drinking water.
Calculated Parameters
Values worked out mathematically from other test results, not measured directly
Alkalinity, Bicarbonate
Detected: 200 MG/L (ppm)
4/29/2025
Other
Additional substances tested that don't fit neatly into the categories above
Trichloroaceticacid
Detected: 1.4 UG/L (ppb)
4/8/2025
Dibromoaceticacid
Detected: 5.8 UG/L (ppb)
4/8/2025
Alkalinity, Total
Detected: 200 MG/L (ppm)
4/29/2025
TDS
Detected: 1100 MG/L (ppm)
4/29/2025
Turbidity
Detected: 0.19 NTU
4/29/2025
A measure of water cloudiness from suspended particles.
Perchlorate
Detected: 0.65 UG/L (ppb)
4/22/2025
Can occur naturally or from industrial/military sources; may interfere with thyroid function at elevated levels.
Conductivity (at 25°C)
Detected: 2100 UMHO/CM
4/29/2025
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.