Home / California / Joshua Tree

Joshua Tree Water Quality

Latest water quality information for Joshua Tree, California

Last update on March 2025

Very bad

Unsafe water with serious health risks.

Exceeds 3 EPA limits and 14 recommended standards.

Water Provider
joshua basin water district
Owner Type
L (Local Government)
Population Served
8,367
Data Sources
2014-2023

Contaminants exceeding EPA limits

What it means: This refers to substances in the water that are found at levels higher than what the EPA allows. The EPA (Environmental Protection Agency) is a U.S. government agency that sets legal limits for harmful contaminants to protect public health. Exceeding these limits means the water may pose health risks based on federal safety standards.

Chloride

533.10 ppm
2.1x
EPA limits: 250 ppm
Above EPA regulatory threshold

Potential Health Effects

None / Blood pressure

Total Dissolved Solids

1204.30 ppm
2.4x
EPA limits: 500 ppm
Above EPA regulatory threshold

Potential Health Effects

Gastrointestinal issues

Turbidity

3.90 NTU
3.9x
EPA limits: 1 NTU
Above EPA regulatory threshold

Potential Health Effects

Infection risk

Contaminants exceeding recommended standards

What it means: This refers to substances in the water that are above health-based guidelines set by organizations such as the World Health Organization (WHO) and the U.S. Environmental Protection Agency (EPA). These standards, while not always legally enforceable, are based on scientific research to protect health. Exceeding them may indicate potential health concerns.

Arsenic

1.20 ppb
300.0x
Recommended: 0.004000 ppb
Above health-based recommendations

Potential Health Effects

Cancer

Boron

288.60 ppm
577.2x
Recommended: 0.5000 ppm
Above health-based recommendations

Potential Health Effects

Reproductive issues

Bromodichloromethane

1 ppb
16.7x
Recommended: 0.0600 ppb
Above health-based recommendations

Potential Health Effects

Cancer

Bromoform

1.30 ppb
2.6x
Recommended: 0.5000 ppb
Above health-based recommendations

Potential Health Effects

Cancer

Chloroform

0.5000 ppb
1.2x
Recommended: 0.4000 ppb
Above health-based recommendations

Potential Health Effects

Cancer

Conductivity

1893.50 µS/cm
2.4x
Recommended: 800 µS/cm
Above health-based recommendations

Potential Health Effects

None

Dibromochloromethane

1.50 ppb
15.0x
Recommended: 0.1000 ppb
Above health-based recommendations

Potential Health Effects

Cancer

Silica

44.50 ppm
1.8x
Recommended: 25 ppm
Above health-based recommendations

Potential Health Effects

None

Sodium

342.20 ppm
17.1x
Recommended: 20 ppm
Above health-based recommendations

Potential Health Effects

Hypertension

Total Thms

2.90 ppb
19.3x
Recommended: 0.1500 ppb
Above health-based recommendations

Potential Health Effects

Cancer

Uranium

1.70 ppb
4.0x
Recommended: 0.4300 ppb
Above health-based recommendations

Potential Health Effects

Cancer, kidney damage

Other Detected Contaminants

Contaminant Detected Level EPA Limit Recommended Status
Aluminum 31.40 ppb 200 ppb 600 ppb Within limits
Barium 381.20 ppb 2000 ppb 2000 ppb Within limits
Calcium 16.80 ppm Not established 80 ppm Within limits
Fluoride 643.80 ppb 4000 ppb 2000 ppb Within limits
Magnesium 5.60 ppm Not established 30 ppm Within limits
Molybdenum 7.20 ppb Not established 40 ppb Within limits
O Xylene 0.7000 ppb 10000 ppb 10000 ppb Within limits
Ph Level 8 pH units 8.50 pH units 8.50 pH units Within limits
Potassium 2.90 ppb Not established 5000 ppb Within limits
Strontium 125.20 ppb Not established 1500 ppb Within limits
Sulfate 17 ppm 250 ppm 250 ppm Within limits
Vanadium 11.70 ppb 21 ppb 21 ppb Within limits
No additional contaminants detected.

How to best protect from water pollution?

Reduce your water pollution exposure in California

Carbon Filter

Carbon filters are effective at removing many common contaminants including chlorine, sediment, volatile organic compounds (VOCs), and improves taste and odor.

Reverse Osmosis

Reverse osmosis systems can remove up to 99% of dissolved contaminants from water including heavy metals, fluoride, nitrates, and arsenic.