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PS Code Transition

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PS Code Transition

Water System No. : CA1910199 Federal Type : C
Principal County Served : LOS ANGELES Primary Source : GW
Status : A Activity Date : 03-22-1979
Distribution System Classification : D4 Max Treatment Plant Classification : T5

NOTICE TO USERS OF THE DATABASE: Users of this database should use care in interpreting these data. Data that does not meet Division of Drinking Water (DDW) data quality objectives is not included and the provided data may not be representative of water served by a water system. For example, the presence of a contaminant in a particular source of water at a given concentration does not necessarily mean that the water from that source was served by the water system to its customers, or, if served, that the contaminant was present at that concentration. Water systems may not use certain sources or may treat or blend them prior to serving the water to customers.

Questions about contaminants in particular sources are best addressed by the specific public water system, or by the associated DDW district office.

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.  
Test Legends:
  • PS Code = Primary Station Code; used by laboratories to upload water quality data
  • Old PS Code = (Water System Number)-(Sample Point ID)
  • New PS Code = (Water System Number)_(Facility ID)_(Sampling Point ID) to be used by laboratories to upload water quality data when CLIP (California Laboratory Intake Portal) is implemented
  • Facility Status: A = Active; P = Proposed
  • Certain PS Codes have been removed from this table as they are not intended to have water quality data electronically reported. As an example, a water system may have a PS Code to represent Well 01 and another PS Code to represent Well 01 Chlorination. However, water quality data should only be reported to the PS Code for Well 01. The PS Code for Well 01 Chlorination would be removed from the list to avoid confusion in uploading data. If you notice that a PS Code is missing from the list that may be needed for uploading water quality data, please contact your District Office or Local County Primacy Agency.

Click to hide / show columns: Old PS Code | New PS Code | Facility ID | Sample Point ID | Sample Point Name | Status

Monitoring Schedules for All Sampling Points
Water System Sampling Points
Old PS Codes New PS Codes Facility ID Sample Point ID Sample Point Name Status
1910199-005 CA1910199_005_005 005 005 WELL 03 A
1910199-006 CA1910199_006_006 006 006 WELL 05A A
1910199-007 CA1910199_007_007 007 007 WELL 06 A
1910199-008 CA1910199_008_008 008 008 WELL 08 A
1910199-009 CA1910199_009_009 009 009 BASSETT SITE - BLEND - CTC A
1910199-014 CA1910199_014_014 014 014 WELL 14 A
1910199-011 CA1910199_017_011 017 011 AIR STRIPPER TOWER (1) EFFLUENT A
1910199-012 CA1910199_017_012 017 012 AIR STRIPPER TOWER (2) EFFLUENT A
1910199-013 CA1910199_017_013 017 013 COMMON TOWER INFLUENT A
1910199-017 CA1910199_017_017 017 017 AIR STRIPPER TOWER (3) EFFLUENT A
1910199-020 CA1910199_020_020 020 020 WELL 10 A
1910199-021 CA1910199_021_021 021 021 WELL 02A A
1910199-003 CA1910199_022_003 022 003 IX INFLUENT HEADER - RAW A
1910199-016 CA1910199_022_016 022 016 IX EFFLUENT HEADER - TREATED A
1910199-015 CA1910199_023_015 023 015 WELL 14 - RAYOX EFFLUENT - TREATED A
1910199-018 CA1910199_023_018 023 018 WELL 14 - UVPHOX EFFLUENT - TREATED A
1910199-019 CA1910199_023_019 023 019 WELL 03- UVPHOX EFFLUENT - TREATED A
1910199-800 CA1910199_DST_800 DST 800 1228 OAK...* A
1910199-801 CA1910199_DST_801 DST 801 121 W. H...* A
1910199-802 CA1910199_DST_802 DST 802 895 BEAC...* A
1910199-803 CA1910199_DST_803 DST 803 #1-BASSE...* A
1910199-804 CA1910199_DST_804 DST 804 #2-PLANT...* A
1910199-805 CA1910199_DST_805 DST 805 #3-PLANT...* A
1910199-806 CA1910199_DST_806 DST 806 #4-10 AC...* A
1910199-807 CA1910199_DST_807 DST 807 #5-BREA ...* A
1910199-LCR CA1910199_DST_LCR DST LCR Lead and Copper Sample Sites ** A
1910199-024 CA1910199_TK001_024 TK001 024 BASSETT FIELD 5MG RESERVOIR A
1910199-001 CA1910199_001_001 001 001 STEELE WELL - ABANDONED I
1910199-002 CA1910199_002_002 002 002 WELL 01E - DESTROYED I
1910199-004 CA1910199_004_004 004 004 WELL 02-DESTROYED I
1910199-010 CA1910199_010_010 010 010 BREA RES/STEEL WELL/NO3 BLEND-INACTIVE I
1910199-029 CA1910199_029_029 029 029 CC-ROWLAND WATER DIST I
Old PS Codes Old PS Codes Facility ID Sample Point ID Sample Point Name Status
*Please refer to the Stage 2 DBP Monitoring Plan Approval Letter for full sample point names.
**Please use this PS Code for all lead and copper samples.