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MyTapWater.us

PWSID CA1500393

RAINBIRD VALLEY MWC

Community water system based in Weldon, CA

Service area on file with EPA: Kern County. EPA's recorded service area can be incomplete for regional authorities. The cities and counties above are what the utility has filed with EPA; the utility may serve additional areas.

Population served
238
Source
Groundwater
Status
Active

At a glance

1 finding worth watching

Past 5 years: 35 health-based violations on file, all marked Resolved or Archived. See compliance history below.

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

Utility reports no confirmed lead service lines

RAINBIRD VALLEY MWC reports 0 confirmed lead service lines, 99 non-lead, 0 unknown (total 99) in the EPA SDWIS service line inventory (2026Q1).

  • 0 confirmed lead service lines
  • 0 galvanized requiring replacement (LCRI treats these as lead)
  • 0 unknown (0.0% of total)
  • 99 confirmed non-lead (100.0%)
  • 99 total service lines in the system
What to do if your service line might be lead
  1. Ask your utility to check the service-line classification for your specific address. Many utilities provide a public address-lookup tool linked from the inventory page.
  2. Get on the replacement queue. Under the LCRI, utilities must replace all lead and galvanized-requiring- replacement lines within 10 years (clock generally starts November 2027). Some prioritize requests.
  3. Until the line is replaced: flush the tap 30 seconds after long stagnation, use cold water for drinking and cooking, and consider an NSF/ANSI 53 lead-rated tap filter.
  4. Talk to your clinician about a blood lead test for anyone in the home, especially a pregnant person or a child under 6. Lead in drinking water guide.

Inventory data sourced from RAINBIRD VALLEY MWC ( retrieved May 24, 2026 ; curator confidence: high ). Confirmed against the original source automatically each month; see methodology.

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
PB90
0.0013 mg/L December 31, 2025 Caution

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

Fluoride

Per CDC My Water's Fluoride

RAINBIRD VALLEY MWC does not add fluoride to its drinking water.

This system has not reported adding fluoride to its water on CDC's My Water's Fluoride listing. Natural fluoride may still be present at trace levels from the source water; the utility's annual water quality report has the latest measured concentration.

Source: CDC My Water's Fluoride, listed under Rainbird Valley Mutual Water Company (Kern County). Verify on CDC's site .

Area context

Kern County, CA (2020 data)

Community water systems
24 of 144 add fluoride
Population on fluoridated water
18,282 of 458,947 (4.0%)

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

Data from CDC My Water's Fluoride (per-system status) , last refreshed May 19, 2026.

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

Recorded contaminant measurements (from violations)

When this system exceeded a regulatory limit and EPA recorded the measured value, that value is shown here. These are not routine sample results: they are the values the violation was triggered on.

Measured values from recorded violations . Most recent first.
Period Contaminant Measured Federal MCL Status
October 1, 2025Nitrate12MG/L10 MG/L Health-based
October 1, 2025Combined Uranium32PCI/L30 PCI/L Health-based
July 1, 2025Combined Uranium32PCI/L30 PCI/L Health-based
July 1, 2025Nitrate12MG/L10 MG/L Health-based
April 1, 2025Nitrate11MG/L10 MG/L Health-based
April 1, 2025Combined Uranium34PCI/L30 PCI/L Health-based
January 1, 2025Nitrate12MG/L10 MG/L Health-based
January 1, 2025Combined Uranium34PCI/L30 PCI/L Health-based
October 1, 2024Combined Uranium35PCI/L30 PCI/L Health-based
October 1, 2024Nitrate14MG/L10 MG/L Health-based
July 1, 2024Nitrate15MG/L10 MG/L Health-based
July 1, 2024Combined Uranium35PCI/L30 PCI/L Health-based
April 1, 2024Combined Uranium37PCI/L30 PCI/L Health-based
January 1, 2024Combined Uranium48PCI/L30 PCI/L Health-based
January 1, 2024Nitrate11MG/L10 MG/L Health-based
October 1, 2023Combined Uranium52PCI/L30 PCI/L Health-based
October 1, 2023Nitrate15MG/L10 MG/L Health-based
July 1, 2023Nitrate12MG/L10 MG/L Health-based
July 1, 2023Combined Uranium61PCI/L30 PCI/L Health-based
April 1, 2023Nitrate11MG/L10 MG/L Health-based
April 1, 2023Combined Uranium66PCI/L30 PCI/L Health-based
January 1, 2023Nitrate11MG/L10 MG/L Health-based
January 1, 2023Combined Uranium86PCI/L30 PCI/L Health-based
October 1, 2022Nitrate11MG/L10 MG/L Health-based
October 1, 2022Combined Uranium102PCI/L30 PCI/L Health-based
July 1, 2022Nitrate12MG/L10 MG/L Health-based
July 1, 2022Combined Uranium111PCI/L30 PCI/L Health-based
April 1, 2022Nitrate14MG/L10 MG/L Health-based
April 1, 2022Combined Uranium112PCI/L30 PCI/L Health-based
January 1, 2022Nitrate11MG/L10 MG/L Health-based
January 1, 2022Combined Uranium96PCI/L30 PCI/L Health-based
October 1, 2021Combined Uranium83PCI/L30 PCI/L Health-based
October 1, 2021Nitrate11MG/L10 MG/L Health-based
July 1, 2021Nitrate14MG/L10 MG/L Health-based
July 1, 2021Combined Uranium68PCI/L30 PCI/L Health-based

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

35 resolved health-based violations in the last 5 years

All 35 health-based violations in the last 5 years are marked Resolved or Archived. Past violations do not represent current water quality.

Health-based violations in the last 5 years
Period start Contaminant What happened Measured level Status
October 1, 2025 Nitrate Maximum Contaminant Level Violation, Single Sample
12 MG/L
MCL 10 MG/L
Resolved
October 1, 2025 Combined Uranium Maximum Contaminant Level Violation, Average
32 PCI/L
MCL 30 PCI/L
Resolved
July 1, 2025 Combined Uranium Maximum Contaminant Level Violation, Average
32 PCI/L
MCL 30 PCI/L
Resolved
July 1, 2025 Nitrate Maximum Contaminant Level Violation, Single Sample
12 MG/L
MCL 10 MG/L
Resolved
April 1, 2025 Nitrate Maximum Contaminant Level Violation, Single Sample
11 MG/L
MCL 10 MG/L
Resolved
April 1, 2025 Combined Uranium Maximum Contaminant Level Violation, Average
34 PCI/L
MCL 30 PCI/L
Resolved
January 1, 2025 Nitrate Maximum Contaminant Level Violation, Single Sample
12 MG/L
MCL 10 MG/L
Resolved
January 1, 2025 Combined Uranium Maximum Contaminant Level Violation, Average
34 PCI/L
MCL 30 PCI/L
Resolved
October 1, 2024 Combined Uranium Maximum Contaminant Level Violation, Average
35 PCI/L
MCL 30 PCI/L
Resolved
October 1, 2024 Nitrate Maximum Contaminant Level Violation, Single Sample
14 MG/L
MCL 10 MG/L
Resolved
July 1, 2024 Nitrate Maximum Contaminant Level Violation, Single Sample
15 MG/L
MCL 10 MG/L
Resolved
July 1, 2024 Combined Uranium Maximum Contaminant Level Violation, Average
35 PCI/L
MCL 30 PCI/L
Resolved
April 1, 2024 Combined Uranium Maximum Contaminant Level Violation, Average
37 PCI/L
MCL 30 PCI/L
Resolved
January 1, 2024 Combined Uranium Maximum Contaminant Level Violation, Average
48 PCI/L
MCL 30 PCI/L
Resolved
January 1, 2024 Nitrate Maximum Contaminant Level Violation, Single Sample
11 MG/L
MCL 10 MG/L
Resolved
October 1, 2023 Combined Uranium Maximum Contaminant Level Violation, Average
52 PCI/L
MCL 30 PCI/L
Resolved
October 1, 2023 Nitrate Maximum Contaminant Level Violation, Single Sample
15 MG/L
MCL 10 MG/L
Resolved
July 1, 2023 Nitrate Maximum Contaminant Level Violation, Single Sample
12 MG/L
MCL 10 MG/L
Resolved
July 1, 2023 Combined Uranium Maximum Contaminant Level Violation, Average
61 PCI/L
MCL 30 PCI/L
Resolved
April 1, 2023 Nitrate Maximum Contaminant Level Violation, Single Sample
11 MG/L
MCL 10 MG/L
Resolved
April 1, 2023 Combined Uranium Maximum Contaminant Level Violation, Average
66 PCI/L
MCL 30 PCI/L
Resolved
January 1, 2023 Nitrate Maximum Contaminant Level Violation, Single Sample
11 MG/L
MCL 10 MG/L
Resolved
January 1, 2023 Combined Uranium Maximum Contaminant Level Violation, Average
86 PCI/L
MCL 30 PCI/L
Resolved
October 1, 2022 Nitrate Maximum Contaminant Level Violation, Single Sample
11 MG/L
MCL 10 MG/L
Resolved
October 1, 2022 Combined Uranium Maximum Contaminant Level Violation, Average
102 PCI/L
MCL 30 PCI/L
Resolved
July 1, 2022 Nitrate Maximum Contaminant Level Violation, Single Sample
12 MG/L
MCL 10 MG/L
Resolved
July 1, 2022 Combined Uranium Maximum Contaminant Level Violation, Average
111 PCI/L
MCL 30 PCI/L
Resolved
April 1, 2022 Nitrate Maximum Contaminant Level Violation, Single Sample
14 MG/L
MCL 10 MG/L
Resolved
April 1, 2022 Combined Uranium Maximum Contaminant Level Violation, Average
112 PCI/L
MCL 30 PCI/L
Resolved
January 1, 2022 Nitrate Maximum Contaminant Level Violation, Single Sample
11 MG/L
MCL 10 MG/L
Resolved
January 1, 2022 Combined Uranium Maximum Contaminant Level Violation, Average
96 PCI/L
MCL 30 PCI/L
Resolved
October 1, 2021 Combined Uranium Maximum Contaminant Level Violation, Average
83 PCI/L
MCL 30 PCI/L
Resolved
October 1, 2021 Nitrate Maximum Contaminant Level Violation, Single Sample
11 MG/L
MCL 10 MG/L
Resolved
July 1, 2021 Nitrate Maximum Contaminant Level Violation, Single Sample
14 MG/L
MCL 10 MG/L
Resolved
July 1, 2021 Combined Uranium Maximum Contaminant Level Violation, Average
68 PCI/L
MCL 30 PCI/L
Resolved
68 older violation s (5-10 years ago) · 65 health-based, 3 paperwork , all resolved
Violations 5-10 years ago (68 total)
Period start Relates to Item Measured level Status
April 1, 2021 Combined Uranium Maximum Contaminant Level Violation, Average
63 PCI/L
MCL 30 PCI/L
Resolved
April 1, 2021 Nitrate Maximum Contaminant Level Violation, Single Sample
16 MG/L
MCL 10 MG/L
Resolved
April 1, 2021 Nitrate Maximum Contaminant Level Violation, Single Sample
16 MG/L
MCL 10 MG/L
Resolved
January 1, 2021 Nitrate Maximum Contaminant Level Violation, Single Sample
16 MG/L
MCL 10 MG/L
Resolved
January 1, 2021 Combined Uranium Maximum Contaminant Level Violation, Average
34 PCI/L
MCL 30 PCI/L
Resolved
January 1, 2021 Nitrate Maximum Contaminant Level Violation, Single Sample
16 MG/L
MCL 10 MG/L
Resolved
January 1, 2021 Combined Uranium Maximum Contaminant Level Violation, Average
34 PCI/L
MCL 30 PCI/L
Resolved
October 1, 2020 Combined Uranium Maximum Contaminant Level Violation, Average
35 PCI/L
MCL 30 PCI/L
Resolved
October 1, 2020 Nitrate Maximum Contaminant Level Violation, Single Sample
18 MG/L
MCL 10 MG/L
Resolved
July 1, 2020 Nitrate Maximum Contaminant Level Violation, Single Sample
22 MG/L
MCL 10 MG/L
Resolved
July 1, 2020 Combined Uranium Maximum Contaminant Level Violation, Average
29 PCI/L
MCL 30 PCI/L
Resolved
January 1, 2020 Nitrate Maximum Contaminant Level Violation, Single Sample
24 MG/L
MCL 10 MG/L
Resolved
January 1, 2020 Combined Uranium Maximum Contaminant Level Violation, Average
37 PCI/L
MCL 30 PCI/L
Resolved
October 1, 2019 Combined Uranium Maximum Contaminant Level Violation, Average
37 PCI/L
MCL 30 PCI/L
Resolved
October 1, 2019 Nitrate Maximum Contaminant Level Violation, Single Sample
26 MG/L
MCL 10 MG/L
Resolved
October 1, 2019 Combined Uranium Maximum Contaminant Level Violation, Average
37 PCI/L
MCL 30 PCI/L
Resolved
October 1, 2019 Nitrate Maximum Contaminant Level Violation, Single Sample
26 MG/L
MCL 10 MG/L
Resolved
July 1, 2019 Combined Uranium Maximum Contaminant Level Violation, Average
37 PCI/L
MCL 30 PCI/L
Resolved
July 1, 2019 Combined Uranium Maximum Contaminant Level Violation, Average
37 PCI/L
MCL 30 PCI/L
Resolved
July 1, 2019 Nitrate Maximum Contaminant Level Violation, Single Sample
24 MG/L
MCL 10 MG/L
Resolved
July 1, 2019 Nitrate Maximum Contaminant Level Violation, Single Sample
24 MG/L
MCL 10 MG/L
Resolved
April 1, 2019 Nitrate Maximum Contaminant Level Violation, Single Sample
24 MG/L
MCL 10 MG/L
Resolved
April 1, 2019 Nitrate Maximum Contaminant Level Violation, Single Sample
24 MG/L
MCL 10 MG/L
Resolved
April 1, 2019 Combined Uranium Maximum Contaminant Level Violation, Average
28 PCI/L
MCL 30 PCI/L
Resolved
April 1, 2019 Combined Uranium Maximum Contaminant Level Violation, Average
28 PCI/L
MCL 30 PCI/L
Resolved
January 1, 2019 Nitrate Maximum Contaminant Level Violation, Single Sample
25 MG/L
MCL 10 MG/L
Resolved
January 1, 2019 Combined Uranium Maximum Contaminant Level Violation, Average
27 PCI/L
MCL 30 PCI/L
Resolved
January 1, 2019 Nitrate Maximum Contaminant Level Violation, Single Sample
25 MG/L
MCL 10 MG/L
Resolved
January 1, 2019 Combined Uranium Maximum Contaminant Level Violation, Average
27 PCI/L
MCL 30 PCI/L
Resolved
October 1, 2018 Nitrate Maximum Contaminant Level Violation, Single Sample
25 MG/L
MCL 10 MG/L
Resolved
October 1, 2018 Combined Uranium Maximum Contaminant Level Violation, Average
24 PCI/L
MCL 30 PCI/L
Resolved
October 1, 2018 Nitrate Maximum Contaminant Level Violation, Single Sample
25 MG/L
MCL 10 MG/L
Resolved
October 1, 2018 Combined Uranium Maximum Contaminant Level Violation, Average
24 PCI/L
MCL 30 PCI/L
Resolved
July 1, 2018 Combined Uranium Maximum Contaminant Level Violation, Average
22 PCI/L
MCL 30 PCI/L
Resolved
July 1, 2018 Combined Uranium Maximum Contaminant Level Violation, Average
22 PCI/L
MCL 30 PCI/L
Resolved
July 1, 2018 Nitrate Maximum Contaminant Level Violation, Single Sample
23 MG/L
MCL 10 MG/L
Resolved
July 1, 2018 Nitrate Maximum Contaminant Level Violation, Single Sample
23 MG/L
MCL 10 MG/L
Resolved
April 1, 2018 Combined Uranium Maximum Contaminant Level Violation, Average
50 PCI/L
MCL 30 PCI/L
Resolved
April 1, 2018 Combined Uranium Maximum Contaminant Level Violation, Average
50 PCI/L
MCL 30 PCI/L
Resolved
April 1, 2018 Nitrate Maximum Contaminant Level Violation, Single Sample
21 MG/L
MCL 10 MG/L
Resolved
April 1, 2018 Nitrate Maximum Contaminant Level Violation, Single Sample
21 MG/L
MCL 10 MG/L
Resolved
January 1, 2018 Nitrate Maximum Contaminant Level Violation, Single Sample
19 MG/L
MCL 10 MG/L
Resolved
January 1, 2018 Nitrate Maximum Contaminant Level Violation, Single Sample
19 MG/L
MCL 10 MG/L
Resolved
January 1, 2018 Combined Uranium Maximum Contaminant Level Violation, Average
56 PCI/L
MCL 30 PCI/L
Resolved
January 1, 2018 Combined Uranium Maximum Contaminant Level Violation, Average
56 PCI/L
MCL 30 PCI/L
Resolved
October 1, 2017 Nitrate Maximum Contaminant Level Violation, Single Sample
18 MG/L
MCL 10 MG/L
Resolved
October 1, 2017 Nitrate Maximum Contaminant Level Violation, Single Sample
18 MG/L
MCL 10 MG/L
Resolved
October 1, 2017 Combined Uranium Maximum Contaminant Level Violation, Average
48 PCI/L
MCL 30 PCI/L
Resolved
October 1, 2017 Combined Uranium Maximum Contaminant Level Violation, Average
48 PCI/L
MCL 30 PCI/L
Resolved
July 1, 2017 Combined Uranium Maximum Contaminant Level Violation, Average
44 PCI/L
MCL 30 PCI/L
Resolved
July 1, 2017 Combined Uranium Maximum Contaminant Level Violation, Average
44 PCI/L
MCL 30 PCI/L
Resolved
July 1, 2017 Nitrate Maximum Contaminant Level Violation, Single Sample
19 MG/L
MCL 10 MG/L
Resolved
July 1, 2017 Nitrate Maximum Contaminant Level Violation, Single Sample
19 MG/L
MCL 10 MG/L
Resolved
April 1, 2017 Combined Uranium Maximum Contaminant Level Violation, Average
46 PCI/L
MCL 30 PCI/L
Resolved
April 1, 2017 Combined Uranium Maximum Contaminant Level Violation, Average
46 PCI/L
MCL 30 PCI/L
Resolved
January 1, 2017 Combined Uranium Maximum Contaminant Level Violation, Average
39 PCI/L
MCL 30 PCI/L
Resolved
January 1, 2017 Combined Uranium Maximum Contaminant Level Violation, Average
39 PCI/L
MCL 30 PCI/L
Resolved
January 1, 2017 Nitrate Monitoring, Regular Resolved
January 1, 2017 Nitrate Monitoring, Regular Resolved
January 1, 2017 Nitrate Monitoring, Regular Resolved
October 1, 2016 Nitrate Maximum Contaminant Level Violation, Single Sample
20 MG/L
MCL 10 MG/L
Resolved
October 1, 2016 Combined Uranium Maximum Contaminant Level Violation, Average
40 PCI/L
MCL 30 PCI/L
Resolved
October 1, 2016 Nitrate Maximum Contaminant Level Violation, Single Sample
20 MG/L
MCL 10 MG/L
Resolved
October 1, 2016 Combined Uranium Maximum Contaminant Level Violation, Average
40 PCI/L
MCL 30 PCI/L
Resolved
July 1, 2016 Nitrate Maximum Contaminant Level Violation, Single Sample
16 MG/L
MCL 10 MG/L
Resolved
July 1, 2016 Combined Uranium Maximum Contaminant Level Violation, Average
49 PCI/L
MCL 30 PCI/L
Resolved
July 1, 2016 Nitrate Maximum Contaminant Level Violation, Single Sample
16 MG/L
MCL 10 MG/L
Resolved
July 1, 2016 Combined Uranium Maximum Contaminant Level Violation, Average
49 PCI/L
MCL 30 PCI/L
Resolved

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 RAINBIRD VALLEY MWC's CCR:

Compare nearby utilities by population served.

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
BAXTER, JANNETT
Phone
760-442-2336
Email
rainbirdvmwc@gmail.com
Mailing address
PO BOX 1222
WELDON, CA 93283

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.

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