Drinking water quality · 2020
· Verified
What's in Rowland Water District — Rowland Heights, Ca, CA tap water
23 contaminants were measured in the Rowland Water District — Rowland Heights, Ca, CA water system's 2020 annual report. Each is shown below against its federal limit.
- Reporting year
- 2020
- Contaminants measured
- 23
- Over federal limit
- 0
- Approaching the limit
- 0
- Service area
- CA
state-level CCR
Compliance history
Federal Safe Drinking Water Act violation & enforcement records (EPA SDWIS). A violation is a regulatory determination by the state or EPA — separate from the measured levels above.
No federal drinking-water violations on record for this system.
Other
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Chlorine Total | 2.58–2.85 mg/LReported levelImported Surface Water Weymouth (MWD) | None set | Within the limit |
+By source (4)— Imported Groundwater (CDWC), Imported Surface Water Weymouth (MWD), Imported Surface Water Miramar (TVMWD) +1 more
| |||
| Nitrate Nitrite | 3.4 mg/LReported levelImported Groundwater (CDWC) | 10 mg/LMCL | Within the limit |
Disinfection byproducts
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| BromateA disinfection byproduct formed when bromide-containing water is treated with ozone. | 0–7 ug/LReported levelImported Surface Water Weymouth (MWD) | None set | Within the limit |
| TTHMTotal trihalomethanes — a group of four chemicals (including chloroform) formed when chlorine reacts with natural organic matter. | 2.5–38.8 ug/LReported levelImported Surface Water Weymouth (MWD) | None set | Within the limit |
+By source (4)— Imported Surface Water Weymouth (MWD), Imported Surface Water Miramar (TVMWD), Groundwater Miramar (TVMWD) +1 more
| |||
| HAA5Haloacetic acids — a group of five disinfection byproducts formed when disinfectants react with organic matter. | 0–17.1 ug/LReported levelImported Surface Water Weymouth (MWD) | None set | Within the limit |
+By source (4)— Imported Surface Water Weymouth (MWD), Imported Surface Water Miramar (TVMWD), Groundwater Miramar (TVMWD) +1 more
| |||
| PerchlorateA chemical used in rocket fuel and fireworks that can also form during disinfection. | 0.57–4.4 ug/LReported levelImported Groundwater (CDWC) | None set | Detected — no federal limit |
+By source (4)— Imported Groundwater (CDWC), Imported Surface Water Weymouth (MWD), Imported Surface Water Miramar (TVMWD) +1 more
| |||
Inorganic chemicals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| NitrateA compound from fertilizer runoff, septic systems, and erosion of natural deposits. | 3–4.6 mg/LReported levelImported Groundwater (CDWC) | 10 mg/LMCL | Within the limit |
+By source (4)— Imported Groundwater (CDWC), Groundwater Miramar (TVMWD), Imported Surface Water Miramar (TVMWD) +1 more
| |||
| FluorideA mineral often added to drinking water to help prevent tooth decay. | 0.6–0.9 mg/LReported levelImported Surface Water Weymouth (MWD) | 4 mg/LMCL | Within the limit |
+By source (3)— Imported Surface Water Weymouth (MWD), Imported Groundwater (CDWC), Imported Surface Water Miramar (TVMWD)
| |||
VOCs & pesticides
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| TrichloroethyleneAn industrial solvent (TCE) used in metal degreasing. | 0–1.5 ug/LReported levelImported Groundwater (CDWC) | 5 ug/LMCL | Within the limit |
+By source (4)— Imported Groundwater (CDWC), Imported Surface Water Weymouth (MWD), Imported Surface Water Miramar (TVMWD) +1 more
| |||
| TetrachloroethyleneAn industrial solvent (PCE) used in dry cleaning and degreasing. | 0–0.82 ug/LReported levelImported Groundwater (CDWC) | 5 ug/LMCL | Within the limit |
+By source (4)— Imported Groundwater (CDWC), Imported Surface Water Weymouth (MWD), Imported Surface Water Miramar (TVMWD) +1 more
| |||
| DBCP1,2-dibromo-3-chloropropane — a banned soil fumigant pesticide. | Not detected ng/LReported levelImported Surface Water Weymouth (MWD) | None set | None detected |
+By source (3)— Imported Surface Water Weymouth (MWD), Imported Surface Water Miramar (TVMWD), Groundwater Miramar (TVMWD)
| |||
| Toluene | Not detected ug/LReported levelImported Surface Water Weymouth (MWD) | None set | None detected |
+By source (4)— Imported Surface Water Weymouth (MWD), Imported Surface Water Miramar (TVMWD), Groundwater Miramar (TVMWD) +1 more
| |||
Metals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| ArsenicA naturally occurring element that also enters water from industry and agriculture. | 0–2.7 ug/LReported levelImported Groundwater (CDWC) | None set | Within the limit |
+By source (4)— Imported Groundwater (CDWC), Imported Surface Water Weymouth (MWD), Imported Surface Water Miramar (TVMWD) +1 more
| |||
| BariumA metal from erosion of natural deposits and industrial discharge. | 120–130 ug/LReported levelImported Groundwater (CDWC) | None set | Within the limit |
+By source (4)— Imported Groundwater (CDWC), Imported Surface Water Weymouth (MWD), Imported Surface Water Miramar (TVMWD) +1 more
| |||
| AluminumA common element sometimes used as a treatment coagulant. | 0–240 ug/LReported levelImported Surface Water Weymouth (MWD) | None set | Detected — no federal limit |
+By source (3)— Imported Surface Water Weymouth (MWD), Imported Surface Water Miramar (TVMWD), Imported Groundwater (CDWC)
| |||
| Strontium | 0.56 pCi/LReported levelImported Surface Water Miramar (TVMWD) | None set | Detected — no federal limit |
+By source (2)— Imported Surface Water Miramar (TVMWD), Imported Surface Water Weymouth (MWD)
| |||
Radionuclides
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Combined RadiumCombined radium-226 and radium-228 — naturally occurring radioactive elements. | 0–1 pCi/LReported levelImported Surface Water Weymouth (MWD) | 0.019 pCi/LPublic health goal | Within the limit |
+By source (3)— Imported Surface Water Weymouth (MWD), Imported Surface Water Miramar (TVMWD), Groundwater Miramar (TVMWD)
| |||
| Gross Beta Particle ActivityGross beta particle activity — a combined measure of beta-emitting radioactive substances. | 4–9 pCi/LReported levelImported Surface Water Weymouth (MWD) | None set | Detected — no federal limit |
+By source (2)— Imported Surface Water Weymouth (MWD), Imported Surface Water Miramar (TVMWD)
| |||
| UraniumA naturally occurring radioactive metal from erosion of natural deposits. | 1–3 pCi/LReported levelImported Surface Water Weymouth (MWD) | 20 pCi/LMCL | Detected — no federal limit |
+By source (2)— Imported Surface Water Weymouth (MWD), Groundwater Miramar (TVMWD)
| |||
Microbial
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Escherichia coli (E. coli)Escherichia coli — bacteria found in the gut of humans and animals. | 0Reported levelImported Surface Water Weymouth (MWD) | 0Public health goal | None detected |
+By source (4)— Imported Surface Water Weymouth (MWD), Imported Surface Water Miramar (TVMWD), Groundwater Miramar (TVMWD) +1 more
| |||
| Total ColiformA group of bacteria used as an indicator of overall water-system sanitation. | 1.3 %Reported levelImported Surface Water Weymouth (MWD) | None set | Detected — no federal limit |
+By source (4)— Imported Surface Water Weymouth (MWD), Imported Surface Water Miramar (TVMWD), Groundwater Miramar (TVMWD) +1 more
| |||
Physical & aggregate
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| TurbidityA measure of cloudiness from suspended particles in the water. | Not detected %Reported levelImported Groundwater (CDWC) | None set | None detected |
| TOCTotal organic carbon — a measure of organic material dissolved in the water. | 1.8–2.5 mg/LReported levelImported Surface Water Weymouth (MWD) | None set | Detected — no federal limit |
+By source (2)— Imported Surface Water Weymouth (MWD), Imported Surface Water Miramar (TVMWD)
| |||
Source: Rowland Water District — Rowland Heights, Ca, CA's 2020 Consumer Confidence Report — the annual drinking-water report every U.S. utility is required to publish. The numbers on this page are the utility's own. A water-quality report covers an entire service area, not a single address.
People also ask about Rowland Water District — Rowland Heights, Ca, CA's water
+Is Rowland Water District — Rowland Heights, Ca, CA tap water safe to drink in 2020?
Every one of the 23 contaminants measured in Rowland Water District — Rowland Heights, Ca, CA's 2020 Consumer Confidence Report is below its federal limit. "Safe" under the EPA's drinking-water standards is health-based, not aesthetic — but by those standards, no measured contaminant in this report exceeds its enforceable threshold. Individual health concerns (e.g. immunocompromised, infant, pregnancy) may warrant additional filtering regardless of compliance.
+What contaminants are in Rowland Water District — Rowland Heights, Ca, CA tap water?
23 contaminants were measured in Rowland Water District — Rowland Heights, Ca, CA's 2020 Consumer Confidence Report, spanning disinfection byproducts, metals, and vocs & pesticides. 8 have an enforceable federal limit; the rest are detected but unregulated. Every measured value, in the utility's own units, is on this page.
+Where does the data on this page come from?
Every value is transcribed from Rowland Water District — Rowland Heights, Ca, CA's 2020 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 Rowland Water District — Rowland Heights, 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 2020 report; a new report will replace it once the utility publishes its next annual update.
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