Drinking water quality · 2023
· Verified
What's in City of Grover Beach Public Works Dept — Grover Beach, Ca, CA tap water
17 contaminants were measured in the City of Grover Beach Public Works Dept — Grover Beach, Ca, CA water system's 2023 annual report. Each is shown below against its federal limit — 1 sit at or above that limit.
- Reporting year
- 2023
- Contaminants measured
- 17
- Over federal limit
- 1
- Approaching the limit
- 0
- Worst contaminant
- TTHM
- Service area
- CA
Disinfection byproducts
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| TTHMTotal trihalomethanes — a group of four chemicals (including chloroform) formed when chlorine reacts with natural organic matter. | 34–110 ug/LAverageLopez/CCWA Delivered | None set | At or above the limit |
+By source (2)— Lopez/CCWA Delivered, Ground Water (GW)
| |||
| Chlorite | 0.57 mg/LAverageLopez/CCWA Delivered | None set | Within the limit |
| HAA5Haloacetic acids — a group of five disinfection byproducts formed when disinfectants react with organic matter. | 24.5 ug/LAverageLopez/CCWA Delivered | None set | Within the limit |
+By source (2)— Ground Water (GW), Lopez/CCWA Delivered
| |||
| ChlorateA byproduct that can form during disinfection, especially when hypochlorite solutions degrade. | 290 ug/LAverageLopez/CCWA Delivered | None set | Detected — no federal limit |
Inorganic chemicals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| NitrateA compound from fertilizer runoff, septic systems, and erosion of natural deposits. | 7.6 mg/LAverageGround Water (GW) | 10 mg/LMCL | Within the limit |
| FluorideA mineral often added to drinking water to help prevent tooth decay. | 0.32 mg/LAverageLopez/CCWA Delivered | 4 mg/LMCL | Within the limit |
+By source (2)— Lopez/CCWA Delivered, Ground Water (GW)
| |||
Other
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Chlorine Total | 2.5 mg/LAverageLopez/CCWA Delivered | 4 mg/LMCL | Within the limit |
+By source (2)— Ground Water (GW), Lopez/CCWA Delivered
| |||
Metals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| CopperA metal that enters water from corroding household plumbing. | 560 ug/L90th percentileAt the tap | None set | Within the limit |
| ArsenicA naturally occurring element that also enters water from industry and agriculture. | 2.5 ug/LAverageLopez/CCWA Delivered | None set | Within the limit |
+By source (2)— Lopez/CCWA Delivered, Ground Water (GW)
| |||
| SeleniumA trace element from natural deposits and industrial discharge. | 2.5 ug/LAverageGround Water (GW) | None set | Within the limit |
| BariumA metal from erosion of natural deposits and industrial discharge. | 0.028 mg/LAverageLopez/CCWA Delivered | 2 mg/LMCL | Within the limit |
+By source (2)— Ground Water (GW), Lopez/CCWA Delivered
| |||
| AluminumA common element sometimes used as a treatment coagulant. | 0–0 ug/LRangeGround Water (GW) | None set | None detected |
+By source (2)— Ground Water (GW), Lopez/CCWA Delivered
| |||
| LeadA toxic metal that leaches into water from old service lines, solder, and plumbing fixtures. | Not detected ug/L90th percentileAt the tap | None set | Within the limit |
| Chromium, HexavalentHexavalent chromium ('chromium-6') — the more toxic form of chromium. | 0.048 ug/LAverageLopez/CCWA Delivered | None set | Detected — no federal limit |
Radionuclides
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Gross AlphaGross alpha particle activity — a combined measure of alpha-emitting radioactive substances. | 3.9 pCi/LAverageLopez/CCWA Delivered | 15 pCi/LMCL | Within the limit |
+By source (2)— Lopez/CCWA Delivered, Ground Water (GW)
| |||
Disinfectants
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| ChlorineA disinfectant added to drinking water to kill bacteria and viruses. | Not detected ug/LAverageLopez/CCWA Delivered | None set | Within the limit |
Microbial
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Total ColiformA group of bacteria used as an indicator of overall water-system sanitation. | 1Highest single sampleNo. of Detections | None set | Detected — no federal limit |
People also ask about City of Grover Beach Public Works Dept — Grover Beach, Ca, CA's water
+Is City of Grover Beach Public Works Dept — Grover Beach, Ca, CA tap water safe to drink in 2023?
The 2023 Consumer Confidence Report for the City of Grover Beach Public Works Dept — Grover Beach, Ca, CA water utility lists 1 contaminant at or above the federal limit: TTHM. Whether that means the water is "unsafe" depends on which contaminant, how long the exposure, and individual health factors. The table on this page shows the measured value, the federal threshold, and the regulated statistic used for compliance.
+What contaminants are in City of Grover Beach Public Works Dept — Grover Beach, Ca, CA tap water?
17 contaminants were measured in City of Grover Beach Public Works Dept — Grover Beach, Ca, CA's 2023 Consumer Confidence Report, spanning metals, disinfection byproducts, and inorganic chemicals. 5 have an enforceable federal limit; the rest are detected but unregulated. Every measured value, in the utility's own units, is on this page.
+Which contaminants exceed federal limits in City of Grover Beach Public Works Dept — Grover Beach, Ca, CA tap water?
One contaminant in City of Grover Beach Public Works Dept — Grover Beach, Ca, CA's 2023 report sits at or above the federal limit: TTHM (1.4× the limit). The EPA enforces these limits against the regulated reporting statistic — typically a running annual average or 90th percentile — not a one-off sample spike.
+What is the worst contaminant in City of Grover Beach Public Works Dept — Grover Beach, Ca, CA tap water?
The contaminant with the highest measured value relative to its federal limit in the 2023 report is TTHM, at 1.4× the federal threshold. It belongs to the disinfection byproducts family of contaminants.
+Where does the data on this page come from?
Every value is transcribed from City of Grover Beach Public Works Dept — Grover Beach, Ca, CA's 2023 Consumer Confidence Report — the annual drinking-water report every U.S. public water utility is required by federal law to publish. The original source document is archived and viewable on this site. A water-quality report covers an entire service area, not a single address.
+How often is City of Grover Beach Public Works Dept — Grover Beach, Ca, CA's water quality data updated?
Each U.S. public water utility publishes one Consumer Confidence Report per year, covering the prior calendar year's measurements. This page reflects the 2023 report; a new report will replace it once the utility publishes its next annual update.