# Usmc - 29 Palms — Twentynine Palms, Ca, CA — Drinking Water Quality (2023)

> Contaminant levels for the Usmc - 29 Palms — Twentynine Palms, Ca, CA public water system from its 2023 Consumer Confidence Report, compared to federal limits.

- Page: https://www.thewatermap.com/water/ca/usmc-29-palms-twentynine-palms-ca/2023
- JSON API: https://www.thewatermap.com/api/water/ca/usmc-29-palms-twentynine-palms-ca/2023
- 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: 2023
- Contaminants measured: 25
- Contaminants with a federal limit: 4
- Contaminants at or above the federal limit: 0
- Part of The Water Map — https://www.thewatermap.com

## Contaminants measured

| Contaminant | Category | Measured level | Sampling context | Federal limit | Status |
|---|---|---|---|---|---|
| Fluoride | Inorganic chemicals | 0.24 mg/L (Average) | Detection | 4 mg/L (MCL) | Within the limit |
| Arsenic | Metals | 0.0028 mg/L (Average) | Detection | 0.01 mg/L (MCL) | Within the limit |
| Boron | Metals | 159 (Average) | Detection | 1000 (Public health goal) | Detected — no federal limit |
| Iron | Metals | 0.06 mg/L (Average) | Detection | No federal limit | Detected — no federal limit |
| Lithium | Metals | Not detected (Reported level) | MCAGCC Water | No federal limit | None detected |
| Manganese | Metals | 0.01 mg/L (Average) | Detection | No federal limit | Detected — no federal limit |
| Total Coliform | Microbial | Not detected (Average) | Detection | No federal limit | None detected |
| Chromium | Other | 0.65 (Average) | Detection | No federal limit | Detected — no federal limit |
| Hexafluoropropylene oxide dimer acid | PFAS ("forever chemicals") | 1996 (Reported level) | Requirement | No federal limit | Detected — no federal limit |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | PFAS ("forever chemicals") | Not detected (Range) | System-wide | No federal limit | None detected |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | PFAS ("forever chemicals") | Not detected (Range) | System-wide | No federal limit | None detected |
| Perfluorodecanoic acid (PFDA) | PFAS ("forever chemicals") | Not detected (Reported level) | MCAGCC Water | No federal limit | None detected |
| Perfluorododecanoic acid (PFDoA) | PFAS ("forever chemicals") | Not detected (Range) | System-wide | No federal limit | None detected |
| Perfluoroheptanesulfonic acid (PFHpS) | PFAS ("forever chemicals") | Not detected (Reported level) | MCAGCC Water | No federal limit | None detected |
| Perfluoropentanesulfonic acid (PFPeS) | PFAS ("forever chemicals") | Not detected (Range) | System-wide | No federal limit | None detected |
| Perfluorotetradecanoic acid (PFTeDA) | PFAS ("forever chemicals") | Not detected (Range) | System-wide | No federal limit | None detected |
| Perfluorotridecanoic acid (PFTrDA) | PFAS ("forever chemicals") | Not detected (Reported level) | MCAGCC Water | No federal limit | None detected |
| Perfluoroundecanoic acid (PFUnA) | PFAS ("forever chemicals") | Not detected (Range) | System-wide | No federal limit | None detected |
| PFAS | PFAS ("forever chemicals") | 1996 (Reported level) | Requirement | No federal limit | Detected — no federal limit |
| PFBA | PFAS ("forever chemicals") | 1996 (Reported level) | Requirement | No federal limit | Detected — no federal limit |
| PFOA | PFAS ("forever chemicals") | Not detected (Reported level) | MCAGCC Water | No federal limit | None detected |
| Color | Physical & aggregate | 3 (Average) | Detection | No federal limit | Detected — no federal limit |
| Odor | Physical & aggregate | 1 (Average) | Detection | No federal limit | Detected — no federal limit |
| Total Dissolved Solids | Physical & aggregate | 138 mg/L (Average) | Detection | No federal limit | Detected — no federal limit |
| Turbidity | Physical & aggregate | 0.14 NTU (Average) | Detection | 1 NTU (MCL) | Within the limit |

## What these contaminants are

- **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.
- **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.
- **Boron** — A naturally occurring element from rock and soil. No enforceable federal limit; the EPA has issued a health advisory level.
- **Iron** — A naturally occurring metal common in groundwater. Regulated only as a secondary (cosmetic) standard; causes rusty color, staining, and metallic taste.
- **Lithium** — A naturally occurring element found in some groundwater. No enforceable federal limit; on the EPA contaminant candidate list for further study.
- **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.
- **Total Coliform** — A group of bacteria used as an indicator of overall water-system sanitation. Coliforms themselves are usually harmless, but their presence signals that disease-causing organisms could enter the system.
- **Hexafluoropropylene oxide dimer acid** — HFPO-DA ('GenX chemicals'), a newer-generation PFAS replacement compound. Regulated by the EPA at 10 parts per trillion and included in the PFAS Hazard Index.
- **N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA)** — N-ethyl perfluorooctanesulfonamidoacetic acid, a PFAS-related compound. Monitored under EPA rules as part of broad PFAS surveillance.
- **N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)** — N-methyl perfluorooctanesulfonamidoacetic acid, a PFAS-related compound. Monitored under EPA rules as part of broad PFAS surveillance.
- **Perfluorodecanoic acid (PFDA)** — Perfluorodecanoic acid, a longer-chain PFAS 'forever chemical.' Monitored under EPA rules; persistent and bioaccumulative.
- **Perfluorododecanoic acid (PFDoA)** — Perfluorododecanoic acid, a longer-chain PFAS 'forever chemical.' Monitored under EPA rules; persistent and bioaccumulative.
- **Perfluoroheptanesulfonic acid (PFHpS)** — Perfluoroheptanesulfonic acid, a PFAS 'forever chemical.' Monitored under EPA rules; persistent in the environment.
- **Perfluoropentanesulfonic acid (PFPeS)** — Perfluoropentanesulfonic acid, a PFAS 'forever chemical.' Monitored under EPA rules; persistent in the environment.
- **Perfluorotetradecanoic acid (PFTeDA)** — Perfluorotetradecanoic acid, a longer-chain PFAS 'forever chemical.' Monitored under EPA rules; persistent and bioaccumulative.
- **Perfluorotridecanoic acid (PFTrDA)** — Perfluorotridecanoic acid, a longer-chain PFAS 'forever chemical.' Monitored under EPA rules; persistent and bioaccumulative.
- **Perfluoroundecanoic acid (PFUnA)** — Perfluoroundecanoic acid, a longer-chain PFAS 'forever chemical.' Monitored under EPA rules; persistent and bioaccumulative.
- **PFBA** — Perfluorobutanoic acid, a shorter-chain PFAS 'forever chemical.' Monitored under EPA rules; persistent in the environment and the human body.
- **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.
- **Color** — A measure of visible tint in the water. Regulated only as a secondary (cosmetic) standard.
- **Odor** — A measure of detectable smell in the water. Regulated only as a secondary (cosmetic) standard.
- **Total Dissolved Solids** — Total dissolved solids — the combined content of all dissolved minerals and salts. Regulated only as a secondary (cosmetic) standard; high levels affect taste and hardness.
- **Turbidity** — A measure of cloudiness from suspended particles in the water. High turbidity can shelter microbes from disinfection; the EPA enforces it through a treatment-technique standard.

## 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._