Drinking water quality · 2023
· Verified
What's in Santa Margarita Water District-id9 — Rancho Santa Margarita, Ca, CA tap water
36 contaminants were measured in the Santa Margarita Water District-id9 — Rancho Santa Margarita, Ca, CA water system's 2023 annual report. Each is shown below against its federal limit.
- Reporting year
- 2023
- Contaminants measured
- 36
- Over federal limit
- 0
- Approaching the limit
- 0
- Service area
- CA
state-level CCR
Disinfection byproducts
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| TTHMTotal trihalomethanes — a group of four chemicals (including chloroform) formed when chlorine reacts with natural organic matter. | 45 ug/LAverageAverage Amount | None set | Within the limit |
| HAA5Haloacetic acids — a group of five disinfection byproducts formed when disinfectants react with organic matter. | 17 ug/LAverageAverage Amount | None set | Within the limit |
| BromateA disinfection byproduct formed when bromide-containing water is treated with ozone. | Not detected ug/LAverageAverage Amount | None set | Within the limit |
| Chlorite | Not detected mg/LAverageAverage Amount | 1 mg/LMCL | Within the limit |
Other
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Chlorine Total | 1.6 mg/LAverageAverage Amount | 4 mg/LMCL | Within the limit |
Radionuclides
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Gross AlphaGross alpha particle activity — a combined measure of alpha-emitting radioactive substances. | 3.8 pCi/LAverageAverage Amount | 15 pCi/LMCL | Within the limit |
| Gross Beta Particle ActivityGross beta particle activity — a combined measure of beta-emitting radioactive substances. | 4.6 pCi/LAverageAverage Amount | None set | Detected — no federal limit |
| UraniumA naturally occurring radioactive metal from erosion of natural deposits. | 2.2 pCi/LAverageAverage Amount | 20 pCi/LMCL | Detected — no federal limit |
Metals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| ArsenicA naturally occurring element that also enters water from industry and agriculture. | 2 ug/LAverageAverage Amount | None set | Within the limit |
| CopperA metal that enters water from corroding household plumbing. | 0.088 mg/L90th percentileAt the tap | 1.3 mg/LAction level | Within the limit |
| BariumA metal from erosion of natural deposits and industrial discharge. | 0.129 mg/LAverageAverage Amount | 2 mg/LMCL | Within the limit |
| IronA naturally occurring metal common in groundwater. | Not detected ug/LRangeSystem-wide | None set | None detected |
| LeadA toxic metal that leaches into water from old service lines, solder, and plumbing fixtures. | Not detected ug/L90th percentileAt the tap | None set | None detected |
| AluminumA common element sometimes used as a treatment coagulant. | Not detected mg/LAverageAverage Amount | None set | Detected — no federal limit |
| BoronA naturally occurring element from rock and soil. | 0.14 mg/LAverageAverage Amount | 1 mg/LNL | Detected — no federal limit |
| CalciumA naturally occurring mineral that contributes to water hardness. | 72.7 mg/LAverageAverage Amount | None set | Detected — no federal limit |
| LithiumA naturally occurring element found in some groundwater. | 50 ug/LAverageAverage Amount | None set | Detected — no federal limit |
| MagnesiumA naturally occurring mineral that contributes to water hardness. | 27.9 mg/LAverageAverage Amount | None set | Detected — no federal limit |
| ManganeseA naturally occurring metal from soil and rock. | 3.7 ug/LAverageAverage Amount | None set | Detected — no federal limit |
| PotassiumA naturally occurring mineral from rock and soil. | 5.9 mg/LAverageAverage Amount | None set | Detected — no federal limit |
| SodiumA naturally occurring salt component. | 105 mg/LAverageAverage Amount | None set | Detected — no federal limit |
Inorganic chemicals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| FluorideA mineral often added to drinking water to help prevent tooth decay. | 0.7 mg/LAverageAverage Amount | 4 mg/LMCL | Within the limit |
| ChlorideA naturally occurring salt compound. | 112 mg/LAverageAverage Amount | None set | Detected — no federal limit |
| SulfateA naturally occurring mineral from rock and soil. | 237 mg/LAverageAverage Amount | None set | Detected — no federal limit |
Physical & aggregate
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| TurbidityA measure of cloudiness from suspended particles in the water. | 0.12 NTUAverageAverage Amount | 1 NTUMCL | Within the limit |
+By source (2)— Turbidity Measurements, Irvine Ranch Water District Baker Water Treatment Plant
| |||
| AlkalinityA measure of the water's capacity to neutralize acids. | 124 mg/LAverageAverage Amount | None set | Detected — no federal limit |
| ColorA measure of visible tint in the water. | 2AverageAverage Amount | None set | Detected — no federal limit |
| HardnessA measure of dissolved calcium and magnesium minerals. | 295 mg/LAverageAverage Amount | None set | Detected — no federal limit |
| OdorA measure of detectable smell in the water. | 2AverageAverage Amount | None set | Detected — no federal limit |
| pHA measure of how acidic or basic the water is. | 8.2AverageAverage Amount | None set | Detected — no federal limit |
| Specific ConductanceA measure of how well water conducts electricity, which tracks dissolved mineral content. | 1065AverageAverage Amount | None set | Detected — no federal limit |
| TOCTotal organic carbon — a measure of organic material dissolved in the water. | 2.4 mg/LAverageAverage Amount | None set | Detected — no federal limit |
| Total Dissolved SolidsTotal dissolved solids — the combined content of all dissolved minerals and salts. | 642 mg/LAverageAverage Amount | None set | Detected — no federal limit |
Disinfectants
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| ChlorineA disinfectant added to drinking water to kill bacteria and viruses. | 98.5 ug/LAverageAverage Amount | 4000 ug/LMCL | Within the limit |
Microbial
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Escherichia coli (E. coli)Escherichia coli — bacteria found in the gut of humans and animals. | 0Highest single sampleNumber Of Detections | 0MCLG | None detected |
VOCs & pesticides
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| MTBE | Not detected ug/LAverageAverage Amount | None set | None detected |
Source: Santa Margarita Water District-id9 — Rancho Santa Margarita, Ca, CA's 2023 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 Santa Margarita Water District-id9 — Rancho Santa Margarita, Ca, CA's water
+Is Santa Margarita Water District-id9 — Rancho Santa Margarita, Ca, CA tap water safe to drink in 2023?
Every one of the 36 contaminants measured in Santa Margarita Water District-id9 — Rancho Santa Margarita, Ca, CA's 2023 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 Santa Margarita Water District-id9 — Rancho Santa Margarita, Ca, CA tap water?
36 contaminants were measured in Santa Margarita Water District-id9 — Rancho Santa Margarita, Ca, CA's 2023 Consumer Confidence Report, spanning metals, physical & aggregate, and disinfection byproducts. 11 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 Santa Margarita Water District-id9 — Rancho Santa Margarita, 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 Santa Margarita Water District-id9 — Rancho Santa Margarita, 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.
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