ARROWHEAD LAKE MHP water quality, CA

At a glance

Recent tests are below federal safety limits

Every recently tested contaminant with a clinically reviewed limit is below the level we'd flag for caution.

Risk classification follows EPA's published values for safe drinking water, with caution and concern bands reviewed by a clinician. Past resolved violations do not influence this card. See methodology.

Lead service line inventory

No inventory data on file

We do not yet have this utility's published Lead Service Line Inventory on file. The EPA Lead and Copper Rule Improvements (LCRI) required every community water system to publish one by October 16, 2024 and to identify and replace any lead lines within 10 years. How lead enters drinking water.

Phase 1 coverage focuses on the largest NC utilities. Smaller systems will be added; in the meantime, ask your utility for their inventory or check their Consumer Confidence Report.

Lead and copper test results

The most recent measurement per contaminant from EPA's Lead and Copper Rule sampling.

Why only lead and copper, and not arsenic, nitrate, or others?

EPA's bulk SDWIS download is the only nationwide per-system sample data they publish, and it only includes the Lead and Copper Rule table. Values for other regulated contaminants (TTHMs, nitrate, arsenic, etc.) appear on this page only when they trigger a violation. For the full per-system contaminant suite, see the utility's annual Consumer Confidence Report (link further down the page).

Most recent measurements per contaminant (Lead and Copper Rule) . Sorted by risk: concern first, then caution, then unrated, then safe.
Contaminant	Most recent	Date	Risk
Lead PB90	0 mg/L	December 31, 2025	Below regulatory thresholds Lead has no safe level (MCLG=0). LCR action level is 0.015 mg/L for the 90th-percentile sample; the LCRI (Oct 2024) lowers the action level to 0.010 mg/L effective Nov 2027. Caution at any detection above LOD; concern anchored to the future LCRI value (0.010 mg/L) for forward consistency. Learn more about Lead. Source.

Data from EPA SDWIS (Lead and Copper Rule sample table) , last refreshed May 24, 2026.

Fluoride

We don't yet have this utility's specific fluoridation status from CDC's My Water's Fluoride listing. The figures below describe the broader area, not ARROWHEAD LAKE MHP itself.

Area context

California statewide (2020 data)

Population on fluoridated water: 21,879,582 of 38,051,212 (57.5%)
Community water systems adding fluoride: 417 of 3,057

Look up your specific utility

California shares per-system data on CDC's My Water's Fluoride site. Search by water system to see whether ARROWHEAD LAKE MHP adds fluoride.

CDC My Water's Fluoride: search by water system

Data from CDC Water Fluoridation Reporting System (state and county aggregates) , last refreshed May 16, 2026.

Compliance history

EPA-recorded violations against this system over the last 5 years.

How to read this section

Health-based violations are when a measured limit was exceeded; the measured concentration is shown alongside the EPA federal limit where SDWIS published it. Monitoring and reporting items are paperwork issues (missed sample dates, late filings) that do not themselves indicate unsafe water.

No health-based violations

No health-based violations on file in the last 5 years. EPA recorded 9 monitoring or reporting items (paperwork) during the same period.

9 monitoring and reporting item s (paperwork) , 1 still open · these are not health risks

Monitoring and reporting items in the last 5 years
Period start	Relates to	Item	Status
April 1, 2024	Tthm	Monitoring and Reporting (DBP)	Resolved
April 1, 2024	Tthm	Monitoring and Reporting (DBP)	Resolved
April 1, 2024	Tthm	Monitoring and Reporting (DBP)	Resolved
April 1, 2024	Tthm	Monitoring and Reporting (DBP)	Resolved
April 1, 2024	Total Haloacetic Acids (Haa5)	Monitoring and Reporting (DBP)	Resolved
April 1, 2024	Total Haloacetic Acids (Haa5)	Monitoring and Reporting (DBP)	Resolved
April 1, 2024	Total Haloacetic Acids (Haa5)	Monitoring and Reporting (DBP)	Resolved
April 1, 2024	Total Haloacetic Acids (Haa5)	Monitoring and Reporting (DBP)	Resolved
January 3, 2022	Consumer Confidence Rule	Consumer Confidence Report Inadequate Reporting	Unaddressed

6 older violation s (5-10 years ago) · all paperwork (monitoring/reporting), none health-based , 2 still open

Violations 5-10 years ago (6 total)
Period start	Relates to	Item	Measured level	Status
December 13, 2018	Consumer Confidence Rule	Consumer Confidence Report Inadequate Reporting	—	Unaddressed
February 1, 2018	Revised Total Coliform Rule	Monitoring, Routine (RTCR)	—	Resolved
February 1, 2018	Revised Total Coliform Rule	Monitoring, Routine (RTCR)	—	Resolved
February 1, 2018	Revised Total Coliform Rule	Monitoring, Routine (RTCR)	—	Resolved
February 1, 2018	Revised Total Coliform Rule	Monitoring, Routine (RTCR)	—	Resolved
July 1, 2016	Consumer Confidence Rule	Consumer Confidence Report Complete Failure to Report	—	Unaddressed

Data from EPA SDWIS (violation records) , last refreshed May 24, 2026.

Where to see every contaminant this utility tested for

EPA's bulk SDWIS dataset gives MyTapWater.us per-system measured values for lead and copper, plus violation records for everything else. To see every regulated contaminant this utility tested for in the past year (TTHMs, HAA5, nitrate, arsenic, fluoride, chromium, etc.) with measured values, read the utility's Consumer Confidence Report (CCR).

Every community water system is required by EPA to publish a CCR annually, by July 1, listing every contaminant they sampled, the measured value, the federal limit, and any health-based exceedances. Most utilities post the report online; some mail it with your bill.

How to find ARROWHEAD LAKE MHP's CCR:

Search the web for "ARROWHEAD LAKE MHP consumer confidence report" . The PDF is usually on the utility's own website.
Or call the utility directly. Their phone number is in the contact section below.

Contact this utility

Public administrative contact information for this water system, as filed with the EPA. Use this to ask about your service line, request your home's lead status, or report a water quality issue.

Administrator: NEWKIRK, ALEJANDRO
Phone: 626-768-9536
Email: anewkirk@ftipm.com
Mailing address: 100 N Barranca Street
Suite 900 Office M
WEST COVINA, CA 91791

Where this page's data comes from

Bundle released 2026-Q2, regenerated May 24, 2026. Each section above also shows its own source date so you can tell at a glance how fresh that part of the page is.

EPA SDWIS bulk download — last refreshed May 24, 2026 (system info, violations, lead and copper samples).
CDC Water Fluoridation Reporting System — last refreshed May 16, 2026 (state and county fluoridation aggregates).

Every value on this page is cross-verified before publication; read our methodology for the verification steps and corrections process.