# Montebello Land & Water Co. — Montebello, Ca, CA — Drinking Water Quality (2020)

> Contaminant levels for the Montebello Land & Water Co. — Montebello, Ca, CA public water system from its 2020 Consumer Confidence Report, compared to federal limits.

- Page: https://www.thewatermap.com/water/ca/montebello-land-water-co-montebello-ca/2020
- JSON API: https://www.thewatermap.com/api/water/ca/montebello-land-water-co-montebello-ca/2020
- Source: the utility's annual Consumer Confidence Report (CCR)
- Verification: transcribed by a model, cross-checked by a second model, approved before publishing
- Reporting year: 2020
- Contaminants measured: 29
- Contaminants with a federal limit: 11
- Contaminants at or above the federal limit: 2
- Part of The Water Map — https://www.thewatermap.com

## Contaminants measured

| Contaminant | Category | Measured level | Sampling context | Federal limit | Status |
|---|---|---|---|---|---|
| HAA5 | Disinfection byproducts | 3.6 ug/L (Average) | Distribution System | No federal limit | Within the limit |
| TTHM | Disinfection byproducts | 24 ug/L (Average) | Distribution System | No federal limit | Within the limit |
| Bromide | Inorganic chemicals | 170 ug/L (Average) | Groundwater | No federal limit | Detected — no federal limit |
| Fluoride | Inorganic chemicals | 0.27 mg/L (Average) | Groundwater | 4 mg/L (MCL) | Within the limit |
| Nitrate | Inorganic chemicals | 1.5 mg/L (Average) | Groundwater | 10 mg/L (MCL) | Within the limit |
| Arsenic | Metals | Not detected ug/L (Average) | Groundwater | No federal limit | Within the limit |
| Calcium | Metals | 73 mg/L (Average) | Groundwater | No federal limit | Detected — no federal limit |
| Copper | Metals | 0.57 mg/L (90th percentile) | At the tap | 1.3 mg/L (Action level) | Within the limit |
| Lead | Metals | Not detected ug/L (90th percentile) | At the tap | No federal limit | None detected |
| Magnesium | Metals | 13 mg/L (Average) | Groundwater | No federal limit | Detected — no federal limit |
| Manganese | Metals | 19 ug/L (Average) | Groundwater | No federal limit | Detected — no federal limit |
| Potassium | Metals | 4.2 mg/L (Average) | Groundwater | No federal limit | Detected — no federal limit |
| Sodium | Metals | 55 mg/L (Average) | Groundwater | No federal limit | Detected — no federal limit |
| Escherichia coli (E. coli) | Microbial | 0 (Highest single sample) | Number Of Detections | 0 (MCLG) | None detected |
| Chlorine Total | Other | 0.71 mg/L (Average) | Distribution System | 4 mg/L (MCL) | Within the limit |
| Perfluorobutanesulfonic acid | PFAS ("forever chemicals") | 7.9 ng/L (Average) | Groundwater | 500 ng/L (NL) | Detected — no federal limit |
| Perfluoroheptanoic acid | PFAS ("forever chemicals") | Not detected ng/L (Average) | Groundwater | No federal limit | Detected — no federal limit |
| Perfluorohexanesulfonic acid | PFAS ("forever chemicals") | 6.2 ng/L (Average) | Groundwater | No federal limit | Within the limit |
| Perfluorohexanoic acid | PFAS ("forever chemicals") | Not detected ng/L (Average) | Groundwater | No federal limit | Detected — no federal limit |
| Perfluorononanoic acid | PFAS ("forever chemicals") | Not detected ng/L (Average) | Groundwater | No federal limit | Within the limit |
| PFOA | PFAS ("forever chemicals") | 12 ng/L (Average) | Groundwater | 5.1 ng/L (NL) | At or above the limit |
| PFOS | PFAS ("forever chemicals") | 46 ng/L (Average) | Groundwater | 6.5 ng/L (NL) | At or above the limit |
| Alkalinity | Physical & aggregate | 170 mg/L (Average) | Groundwater | No federal limit | Detected — no federal limit |
| Hardness | Physical & aggregate | 240 mg/L (Average) | Groundwater | No federal limit | Detected — no federal limit |
| pH | Physical & aggregate | 7.5 (Average) | Groundwater | No federal limit | Detected — no federal limit |
| TOC | Physical & aggregate | Not detected mg/L (Average) | Groundwater | No federal limit | Detected — no federal limit |
| Combined Radium | Radionuclides | Not detected pCi/L (Average) | Groundwater | 5 pCi/L (MCL) | None detected |
| Gross Alpha | Radionuclides | Not detected pCi/L (Average) | Groundwater | 15 pCi/L (MCL) | Within the limit |
| Uranium | Radionuclides | 1.4 pCi/L (Average) | Groundwater | 20 pCi/L (MCL) | Detected — no federal limit |

## What these contaminants are

- **HAA5** — Haloacetic acids — a group of five disinfection byproducts formed when disinfectants react with organic matter. Long-term exposure above the federal limit is associated with an increased cancer risk.
- **TTHM** — Total trihalomethanes — a group of four chemicals (including chloroform) formed when chlorine reacts with natural organic matter. Long-term exposure above the federal limit is linked to liver, kidney, and central-nervous-system effects and increased cancer risk.
- **Bromide** — A naturally occurring salt found in source water. Not directly regulated, but a precursor that increases formation of brominated disinfection byproducts.
- **Fluoride** — A mineral often added to drinking water to help prevent tooth decay. Beneficial at low levels, but long-term exposure above the federal limit can cause bone disease and tooth mottling.
- **Nitrate** — A compound from fertilizer runoff, septic systems, and erosion of natural deposits. Levels above the federal limit can cause 'blue baby syndrome,' a serious oxygen-transport condition in infants.
- **Arsenic** — A naturally occurring element that also enters water from industry and agriculture. A known human carcinogen; long-term exposure is linked to skin, bladder, and lung cancer.
- **Calcium** — A naturally occurring mineral that contributes to water hardness. Not federally regulated for health; affects scaling and taste.
- **Copper** — A metal that enters water from corroding household plumbing. Short-term exposure causes stomach distress; long-term exposure can damage the liver and kidneys.
- **Lead** — A toxic metal that leaches into water from old service lines, solder, and plumbing fixtures. There is no safe level of lead; it harms brain development in children and raises blood pressure in adults. The EPA sets an action level, not a health goal above zero.
- **Magnesium** — A naturally occurring mineral that contributes to water hardness. Not federally regulated for health; affects scaling and taste.
- **Manganese** — A naturally occurring metal from soil and rock. No enforceable federal limit; high levels stain fixtures and laundry and can affect taste, with a health advisory for infants.
- **Potassium** — A naturally occurring mineral from rock and soil. Not federally regulated for health.
- **Sodium** — A naturally occurring salt component. Not federally regulated for health; relevant for people on sodium-restricted diets.
- **Escherichia coli (E. coli)** — Escherichia coli — bacteria found in the gut of humans and animals. Its presence in drinking water indicates fecal contamination and a real risk of waterborne illness.
- **Perfluorobutanesulfonic acid** — Perfluorobutanesulfonic acid, a shorter-chain PFAS 'forever chemical.' Has no standalone limit but is part of the EPA PFAS Hazard Index that limits PFAS in combination.
- **Perfluoroheptanoic acid** — Perfluoroheptanoic acid, a PFAS 'forever chemical.' Monitored under EPA rules; persistent in the environment.
- **Perfluorohexanesulfonic acid** — Perfluorohexanesulfonic acid, a PFAS 'forever chemical.' Regulated by the EPA at 10 parts per trillion and included in the PFAS Hazard Index.
- **Perfluorohexanoic acid** — Perfluorohexanoic acid, a shorter-chain PFAS 'forever chemical.' Monitored under EPA rules; persistent and widely detected.
- **Perfluorononanoic acid** — Perfluorononanoic acid, a PFAS 'forever chemical.' Regulated by the EPA at 10 parts per trillion and included in the PFAS Hazard Index.
- **PFOA** — Perfluorooctanoic acid, a PFAS 'forever chemical' once used in nonstick and stain-resistant products. Linked to cancer, liver damage, and immune effects; the EPA set an enforceable limit of 4 parts per trillion.
- **PFOS** — Perfluorooctanesulfonic acid, a PFAS 'forever chemical' once used in firefighting foam and coatings. Linked to cancer, thyroid disease, and immune effects; the EPA set an enforceable limit of 4 parts per trillion.
- **Alkalinity** — A measure of the water's capacity to neutralize acids. Not federally regulated for health; relevant to corrosion control and treatment.
- **Hardness** — A measure of dissolved calcium and magnesium minerals. Not federally regulated for health; affects scaling, soap use, and taste.
- **pH** — A measure of how acidic or basic the water is. Regulated only as a secondary standard; very low or high pH can corrode pipes or affect taste.
- **TOC** — Total organic carbon — a measure of organic material dissolved in the water. Not harmful itself, but it is the raw material that forms disinfection byproducts; removal is a treatment requirement.
- **Combined Radium** — Combined radium-226 and radium-228 — naturally occurring radioactive elements. Long-term exposure above the federal limit increases the risk of bone cancer.
- **Gross Alpha** — Gross alpha particle activity — a combined measure of alpha-emitting radioactive substances. Long-term exposure above the federal limit increases cancer risk.
- **Uranium** — A naturally occurring radioactive metal from erosion of natural deposits. Long-term exposure above the federal limit can damage the kidneys and increase cancer risk.

## How to read this

- A water-quality report covers an entire service area, not a single address.
- 'Federal limit' is the EPA standard (MCL, action level, treatment technique, etc.) that the measured level is compared against.
- 'At or above the federal limit' means the utility's own reported figure met or exceeded that standard.

_Figures are the utility's own published numbers. Generated 2026-06-04 from thewatermap.com._