Redding, California Water Quality Report
Water quality data for 24 water systems serving 121,419 people.
Water Source
Detected Contaminants
| Contaminant | Detected Level | EPA Limit (MCL) | Health Guideline | % of Limit | Status |
|---|---|---|---|---|---|
| lithium | 38.4 | No federal limit | 10.0 ug/L(EPA/USGS HBSL) | 384% | Above guideline |
| PFBS | 0.009 | No federal limit | 2000.0 ug/L(EPA Health Advisory) | 0% | Below guideline |
| PFHpA | 0.005 | No federal limit | 1000.0 ug/L(EWG) | 0% | Below guideline |
| PFHxA | 0.007 | No federal limit | 1000.0 ug/L(EWG) | 0% | Below guideline |
| PFHxS | 0.009 | 0.010 ug/L | 0.001 ug/L(EWG) | 89% | Near limit |
| PFOA | 0.016 | 0.004 ug/L | 0.090 ug/L(EWG) | 405% | Above limit |
| PFOS | 0.013 | 0.004 ug/L | 0.300 ug/L(EWG) | 315% | Above limit |
| PFPeA | 0.006 | No federal limit | 1000.0 ug/L(EWG) | 0% | Below guideline |
Recommended Water Filters
Based on the contaminants detected in your water supply, these filtration systems are recommended:
Reverse Osmosis (RO)
Reverse osmosis systems remove up to 99% of PFAS compounds. Recommended for homes with detected PFAS.
Up to 99% PFAS removal
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Compliance & Violations
Active Violations (107)
4H
Jul 2, 2025
4H
Jul 2, 2025
75
Apr 1, 2025
4G
Oct 17, 2024
4G
Oct 17, 2024
2E
Oct 17, 2024
2E
Oct 17, 2024
2E
Oct 17, 2024
4G
Oct 17, 2024
2E
Oct 17, 2024
2E
Oct 17, 2024
4G
Oct 17, 2024
4G
Oct 17, 2024
2E
Oct 17, 2024
4G
Oct 17, 2024
2E
Oct 17, 2024
2E
Oct 17, 2024
4G
Oct 17, 2024
4G
Oct 17, 2024
2E
Oct 17, 2024
2E
Oct 17, 2024
4G
Oct 17, 2024
2E
Oct 17, 2024
4G
Oct 17, 2024
2E
Oct 17, 2024
4G
Oct 17, 2024
4G
Oct 17, 2024
52
Oct 1, 2024
52
Jul 1, 2023
52
Jul 1, 2022
75
Jul 1, 2020
75
Jun 1, 2020
75
Jun 1, 2020
75
May 1, 2020
75
May 1, 2020
75
Apr 1, 2020
75
Apr 1, 2020
52
Jan 1, 2020
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Resolved Violations (393)
3A
Apr 1, 2025 — Apr 30, 2025
3A
Apr 1, 2025 — Apr 30, 2025
27
Apr 1, 2025 — Jun 30, 2025
3A
Apr 1, 2025 — Apr 30, 2025
2E
Oct 17, 2024
+ 388 more resolved violations
Frequently Asked Questions
Is Redding tap water safe to drink?
Redding's water has 2 contaminants detected above EPA limits. While the water is treated, residents may want to consider additional filtration.
What contaminants are in Redding tap water?
8 contaminants have been detected in Redding's water supply across 24 water systems. See the full contaminant table above for details.
How can I improve my water quality in Redding?
Install a water filter rated for the specific contaminants found in Redding's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Redding have any water quality violations?
Yes, Redding currently has 118 active violations. See the violations section above for details.