CA Drinking Water Watch


PS Code Transition

Water System Details

Water System Facilities  

Monitoring Schedules

Monitoring Results

Monitoring Results By Analyte

Lead And Copper Sampling

Violations/Enforcement Actions

Site Visits

Consumer Confidence Reports

  • 2020

Lead Service Line Documents

Return Links

Water System Search

County Map


Contact Info



Monitoring Schedules (old format)

Water System No. : CA1410510 Federal Type : C
Water System Name : LADWP - MANZANAR State Type : C
Principal County Served : INYO Primary Source : GW
Status : A Activity Date : 09-03-2009
Distribution System Classification : D1 Max Treatment Plant Classification : There are no treatment plants

The Division of Drinking Water's (DDW's) drinking water quality monitoring schedules identify upcoming required testing of drinking water for water systems in California. These documents should not be used for determining whether water systems are in compliance with monitoring requirements. The purpose for providing these monitoring schedules is to allow water systems to verify that their sampling and analyses have been incorporated into the DDW database and to identify upcoming required monitoring/sampling events.

Notes for Water Systems:
1. The monitoring notification documents should be considered "draft," in that they will change with subsequent updates, and as monitoring data are submitted, or as monitoring schedules are revised .
2. The monitoring notification documents are derived from the DDW Water Quality database and from schedules maintained by DDW districts.
3. If your upcoming monitoring or your data identified as "DUE" are not in agreement with this document, or if your have been advised of any increased monitoring that is not reflected in the report for a particular source, please contact your District Engineer or LPA representative. For a map of the districts, please click here.
4. If your notification report for a source is blank, this does not necessarily indicate compliance with all monitoring requirements.
5. These notification reports may not reflect compliance with initial monitoring for newly regulated constituents, or constituents that require special monitoring frequencies. For example, the DDW database is unable to accurately forecast the vulnerable non-volatile synthetic organic chemical (SOC) frequency for large water systems serving over 3,300 people of 2 quarters every 3 years.
5a. For radionuclide compliance monitoring, a gross alpha (GA) particle activity measurement may be substituted for other measurements when the assigned value is less than 5 pCi/L. The assigned value is calculated by adding 0.84 of the counting error (CE) to the gross alpha result (GA + 0.84xCE). If the assigned value is greater than 5 pCi/L, then the water sample must be analyzed for uranium per Section 64442, Article 5, Chapter 15, Division 4, Title 22 of the California Code of Regulations. In addition, if the difference between the assigned value and the uranium measurement [GA + (0.84 x CE) - U] is greater than 5 pCi/L, analysis for Radium-226 and Radium-228 is required. If you have specific questions, contact your DDW District Office.
6. Some Nitrate (as N) results under storet code 00618, will have a result of ‘N/A’ which stands for ‘Not Applicable.’ This stems from the change in regulation requiring that all nitrate sampling be reported as Nitrate (as N) starting January 1, 2016. Prior nitrate sampling was reported as Nitrate (as NO3). With this change in nitrate reporting requirements, the monitoring schedules have captured the last date of Nitrate (as NO3) sampling and applied it to Nitrate (as N) in determining the next due date [unless there have been Nitrate (as N) samples collected]. The Nitrate (as NO3) result, however, does not carry over to Nitrate (as N) which is why there may be a notation in the ‘Constituent Identification’ column to reference storet code 71850 for the last nitrate result. In these instances, the ‘Constituent Identification’ column will say, “NITRATE (as N) – [see 71850].” Any questions should be referred to your District Engineer.  

Monitoring Schedules for All Sampling Points Except Lead and Copper
Please click on the above link to view schedules of all sampling points (except lead and copper).

Monitoring Schedule for Individual Sampling Points
Please click on a PS Code below to view the monitoring schedule associated with it.
PS Code = Primary Station Code; used by laboratories to upload water quality data
WQM PS Code = (Water System Number)-(Sample Point ID)
CLIP PS Code* = (Water System Number)_(Facility ID)_(Sampling Point ID)
Click here to bring back the list of sampling points.

Water System Sampling Points
WQM PS Codes CLIP PS Codes* Facility ID Sample Point ID Sample Point Name Type
1410510-001 CA1410510_001_001 001 001 WELL V859 RW
1410510-LCR CA1410510_DST_LCR DST LCR Lead and Copper Sample Sites DS
*CLIP PS Code = PS Code to be used by laboratories to upload water quality data when CLIP (California Laboratory Intake Portal) is implemented; estimated launch date mid- to late-2020.
**Please refer to the Stage 2 DBP Monitoring Plan Approval Letter for full sample point names.