Drinking water quality · 2023
· Verified
What's in San Dieguito Wd — Encinitas, Ca, CA tap water
19 contaminants were measured in the San Dieguito Wd — Encinitas, Ca, CA water system's 2023 annual report. Each is shown below against its federal limit — 2 sit at or above that limit.
- Reporting year
- 2023
- Contaminants measured
- 19
- Over federal limit
- 2
- Approaching the limit
- 1
- 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. | 11–93 ug/LRangeSystem-wide | None set | At or above the limit |
| Chlorite | 0.48 mg/LReported levelSystem-wide | 1 mg/LMCL | Within the limit |
| HAA5Haloacetic acids — a group of five disinfection byproducts formed when disinfectants react with organic matter. | 2.7–21 ug/LRangeSystem-wide | None set | Within the limit |
| PerchlorateA chemical used in rocket fuel and fireworks that can also form during disinfection. | 0.84 ug/LReported levelSystem-wide | None set | Detected — no federal limit |
Physical & aggregate
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| TurbidityA measure of cloudiness from suspended particles in the water. | 1 NTUReported levelSystem-wide | None set | At or above the limit |
| TOCTotal organic carbon — a measure of organic material dissolved in the water. | 4.15–6.09 mg/LRangeSystem-wide | None set | Detected — no federal limit |
Disinfectants
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| ChloramineA longer-lasting disinfectant made by combining chlorine with ammonia. | 3.45–3.85 mg/LRangeSystem-wide | 4 mg/LMCL | Approaching the limit |
| ChlorineA disinfectant added to drinking water to kill bacteria and viruses. | 0–0.05 mg/LRangeSystem-wide | 4 mg/LMCL | Within the limit |
PFAS ("forever chemicals")
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| PFOAPerfluorooctanoic acid, a PFAS 'forever chemical' once used in nonstick and stain-resistant products. | 2.4–2.8 ng/LRangeSystem-wide | 5.1 ng/LNL | Within the limit |
Metals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| CopperA metal that enters water from corroding household plumbing. | 0.59 mg/L90th percentileAt the tap | 1.3 mg/LAction level | Within the limit |
| ArsenicA naturally occurring element that also enters water from industry and agriculture. | 0–1.5 ug/LRangeSystem-wide | None set | Within the limit |
| LeadA toxic metal that leaches into water from old service lines, solder, and plumbing fixtures. | 1.4 ug/L90th percentileAt the tap | None set | Within the limit |
| BariumA metal from erosion of natural deposits and industrial discharge. | 0.075–0.11 mg/LRangeSystem-wide | 2 mg/LMCL | Within the limit |
| AluminumA common element sometimes used as a treatment coagulant. | 0–0.046 mg/LRangeSystem-wide | None set | Detected — no federal limit |
| Chromium, HexavalentHexavalent chromium ('chromium-6') — the more toxic form of chromium. | 0.02–0.048 ug/LRangeSystem-wide | None set | Detected — no federal limit |
| LithiumA naturally occurring element found in some groundwater. | 25.2–40 mg/LRangeSystem-wide | 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. | 0.27–0.33 mg/LRangeSystem-wide | 4 mg/LMCL | Within the limit |
| NitrateA compound from fertilizer runoff, septic systems, and erosion of natural deposits. | 0.17 mg/LReported levelSystem-wide | 10 mg/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. | 2024MaximumNumber of Detections | 0MCLG | Detected — no federal limit |
People also ask about San Dieguito Wd — Encinitas, Ca, CA's water
+Is San Dieguito Wd — Encinitas, Ca, CA tap water safe to drink in 2023?
The 2023 Consumer Confidence Report for the San Dieguito Wd — Encinitas, Ca, CA water utility lists 2 contaminants at or above the federal limit: TTHM and Turbidity. 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 San Dieguito Wd — Encinitas, Ca, CA tap water?
19 contaminants were measured in San Dieguito Wd — Encinitas, Ca, CA's 2023 Consumer Confidence Report, spanning metals, disinfection byproducts, and disinfectants. 9 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 San Dieguito Wd — Encinitas, Ca, CA tap water?
2 contaminants in San Dieguito Wd — Encinitas, Ca, CA's 2023 report sit at or above the federal limit: TTHM (1.2× the limit); Turbidity (1.0× 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 San Dieguito Wd — Encinitas, Ca, CA tap water?
The contaminant with the highest measured value relative to its federal limit in the 2023 report is TTHM, at 1.2× the federal threshold. It belongs to the disinfection byproducts family of contaminants.
+Are any contaminants in San Dieguito Wd — Encinitas, Ca, CA tap water approaching the federal limit?
One contaminant is between 80% and 100% of the federal limit in this report: Chloramine. Approaching means measured but not in violation — a margin that can close quickly if conditions change.
+Where does the data on this page come from?
Every value is transcribed from San Dieguito Wd — Encinitas, 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 San Dieguito Wd — Encinitas, 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.