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La Crescenta Water Quality

Latest water quality information for La Crescenta, California

Last update on March 2025

Very bad

Unsafe water with serious health risks.

Exceeds 2 EPA limits and 17 recommended standards.

Water Provider
crescenta valley cwd
Owner Type
L (Local Government)
Population Served
32,665
Data Sources
2008-2024

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.

Gross Beta Activity

107.30 pCi/L
2.1x
EPA limits: 50 pCi/L
Above EPA regulatory threshold

Potential Health Effects

Cancer

Total Dissolved Solids

549.70 ppm
1.1x
EPA limits: 500 ppm
Above EPA regulatory threshold

Potential Health Effects

Gastrointestinal issues

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.

Atrazine

0.2000 ppb
2.0x
Recommended: 0.1000 ppb
Above health-based recommendations

Potential Health Effects

Endocrine disruption

Bromodichloromethane

11.20 ppb
186.7x
Recommended: 0.0600 ppb
Above health-based recommendations

Potential Health Effects

Cancer

Bromoform

5 ppb
10.0x
Recommended: 0.5000 ppb
Above health-based recommendations

Potential Health Effects

Cancer

Chlorate

350 ppb
1.7x
Recommended: 210 ppb
Above health-based recommendations

Potential Health Effects

Thyroid issues

Chloroform

7.50 ppb
18.8x
Recommended: 0.4000 ppb
Above health-based recommendations

Potential Health Effects

Cancer

Conductivity

910.40 µS/cm
1.1x
Recommended: 800 µS/cm
Above health-based recommendations

Potential Health Effects

None

Dibromochloromethane

12.90 ppb
129.0x
Recommended: 0.1000 ppb
Above health-based recommendations

Potential Health Effects

Cancer

Hexachlorobenzene

0.2000 ppb
6.7x
Recommended: 0.0300 ppb
Above health-based recommendations

Potential Health Effects

Cancer

Lead

2.80 ppb
14.0x
Recommended: 0.2000 ppb
Above health-based recommendations

Potential Health Effects

Neurotoxicity

Lead Level

2.80 ppb
14.0x
Recommended: 0.2000 ppb
Above health-based recommendations

Potential Health Effects

Neurotoxicity

Lindane

0.1000 ppb
3.1x
Recommended: 0.0320 ppb
Above health-based recommendations

Potential Health Effects

Neurotoxicity, cancer

Polychlorinated Biphenyls

0.4000 ppb
4.4x
Recommended: 0.0900 ppb
Above health-based recommendations

Potential Health Effects

Cancer

Sodium

56.30 ppm
2.8x
Recommended: 20 ppm
Above health-based recommendations

Potential Health Effects

Hypertension

Total Thms

35.90 ppb
239.3x
Recommended: 0.1500 ppb
Above health-based recommendations

Potential Health Effects

Cancer

Uranium

4.60 ppb
10.7x
Recommended: 0.4300 ppb
Above health-based recommendations

Potential Health Effects

Cancer, kidney damage

Other Detected Contaminants

Contaminant Detected Level EPA Limit Recommended Status
Alachlor 0.6000 ppb 2 ppb 2 ppb Within limits
Aluminum 45 ppb 200 ppb 600 ppb Within limits
Calcium 72.60 ppm Not established 80 ppm Within limits
Chloride 73.40 ppm 250 ppm 250 ppm Within limits
Color 1.30 CU 15 CU 15 CU Within limits
Dalapon 5.50 ppb 200 ppb 200 ppb Within limits
Fluoride 405.20 ppb 4000 ppb 2000 ppb Within limits
Hexachlorocyclopentadiene 0.6000 ppb 50 ppb 2 ppb Within limits
Magnesium 26.60 ppm Not established 30 ppm Within limits
Molybdenum 4.20 ppb Not established 40 ppb Within limits
Nickel 5.40 ppb Not established 70 ppb Within limits
Odor 1 TON 3 TON 3 TON Within limits
Ph Level 5.10 pH units 8.50 pH units 8.50 pH units Within limits
Potassium 26.30 ppb Not established 5000 ppb Within limits
Silica 15.20 ppm Not established 25 ppm Within limits
Silvex 0.2000 ppb 50 ppb 50 ppb Within limits
Strontium 682.80 ppb Not established 1500 ppb Within limits
Sulfate 83.30 ppm 250 ppm 250 ppm Within limits
Zinc 230.20 ppb 5000 ppb 5000 ppb Within limits
No additional contaminants detected.

How to best protect from water pollution?

Reduce your water pollution exposure in California

Carbon Filter

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Reverse Osmosis

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