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PS Code Transition


Water System No. : CA2810003 Federal Type : C
Water System Name : NAPA, CITY OF State Type : C
Principal County Served : NAPA Primary Source : SW
Status : A Activity Date : 01-01-1976
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
2810003-001 CA2810003_001_001 001 001 HENNESSEY RESERVOIR INTAKE A
2810003-002 CA2810003_002_002 002 002 MILLIKEN CREEK INTAKE A
2810003-004 CA2810003_004_004 004 004 NBR WTR RAW - NORTH BAY AQUEDUCT A
2810003-005 CA2810003_005_005 005 005 TREATMENTPLANT_MILLIKEN - TREATED A
2810003-006 CA2810003_006_006 006 006 TREATMENTPLANT_HENNESSEY - TREATED A
2810003-007 CA2810003_007_007 007 007 TREATMENTPLANT_JAMESON A
2810003-062 CA2810003_062_062 062 062 NAPA ST HELENA TREATED WATER INTERTIE A
2810003-063 CA2810003_063_063 063 063 NAPA YOUNTVILLE TREATED WATER INTERTIE A
2810003-064 CA2810003_064_064 064 064 NAPA AMERICAN CANYON TREATED INTERTIE A
2810003-065 CA2810003_065_065 065 065 NAPA CALISTOGA TREATED WATER INTERTIE A
2810003-008 CA2810003_DST_008 DST 008 DBP_770 ...* A
2810003-009 CA2810003_DST_009 DST 009 DBP_2380...* A
2810003-010 CA2810003_DST_010 DST 010 DBP_999 ...* A
2810003-011 CA2810003_DST_011 DST 011 DBP_2442...* A
2810003-012 CA2810003_DST_012 DST 012 DBP_3278...* A
2810003-013 CA2810003_DST_013 DST 013 DBP_2161 CORONADO STREET - ZONE 3 - TRTD A
2810003-014 CA2810003_DST_014 DST 014 DBP_31 SYAR DRIVE - ZONE 3 - TREATED A
2810003-015 CA2810003_DST_015 DST 015 DBP_17 MODOC COURT - ZONE 4 - TREATED A
2810003-016 CA2810003_DST_016 DST 016 DBP_1112 LARKIN WAY - ZONE 4 - TREATED A
2810003-017 CA2810003_DST_017 DST 017 DBP_71 FORREST DRIVE - ZONE 4 - TREATED A
2810003-018 CA2810003_DST_018 DST 018 DBP_3167 KINGSTON AVENUE - ZONE 3 - TRTD A
2810003-019 CA2810003_DST_019 DST 019 DBP_OLD SONOMA ROAD - ZONE 1 - TREATED A
2810003-020 CA2810003_DST_020 DST 020 DBP_8815 CONN CREEK ROAD - ZONE 3 - TRTD A
2810003-021 CA2810003_DST_021 DST 021 DBP_1416 ROSEWOOD LANE - ZONE 3 - TRTD A
2810003-022 CA2810003_DST_022 DST 022 DBP_1515 YELLOWSTONE - ZONE 3 - TREATED A
2810003-023 CA2810003_DST_023 DST 023 DBP_855BORDEAUXWAY_Z2_STAGE2 A
2810003-024 CA2810003_DST_024 DST 024 DBP_1072...* A
2810003-025 CA2810003_DST_025 DST 025 100FAIRW...* A
2810003-026 CA2810003_DST_026 DST 026 DBP_GRANDVIEWAVE_Z5_STAGE2 A
2810003-027 CA2810003_DST_027 DST 027 DDP_1229DIVISIONST_Z5_STAGE2 A
2810003-028 CA2810003_DST_028 DST 028 DDP_4152...* A
2810003-029 CA2810003_DST_029 DST 029 DDP_2401SHORELINEDR_Z5_STAGE2 A
2810003-030 CA2810003_DST_030 DST 030 DBP-1146MOUNTAINVIEWC_Z3_STAGE2 A
2810003-031 CA2810003_DST_031 DST 031 DBP2119BROWNST_Z3_STAGE2 A
2810003-032 CA2810003_DST_032 DST 032 DDP_272MONTECITOBLVD_Z3_STAGE2 A
2810003-033 CA2810003_DST_033 DST 033 DBP_675BURNELLST_Z3_STAGE2 A
2810003-034 CA2810003_DST_034 DST 034 DBP_541WESTGATEDR_Z3_STAGE2 A
2810003-035 CA2810003_DST_035 DST 035 DDP_1418CAROLDR_Z4_STAGE2 A
2810003-036 CA2810003_DST_036 DST 036 DDP_4218LINDAVISTAAVE A
2810003-037 CA2810003_DST_037 DST 037 DDP_1200RIVERPARKBLVD_Z4_STAGE2 A
2810003-038 CA2810003_DST_038 DST 038 DDP_22BLACKWALNUTLN A
2810003-039 CA2810003_DST_039 DST 039 DBP_GRANDVIEWDR_Z3_STAGE 2 A
2810003-LCR CA2810003_DST_LCR DST LCR Lead and Copper Sample Sites ** A
2810003-052 CA2810003_PS001_052 PS001 052 LAKEVIEW PS A
2810003-053 CA2810003_PS002_053 PS002 053 ALTA HEIGHTS 1 PS A
2810003-054 CA2810003_PS003_054 PS003 054 FALCON RIDGE PS A
2810003-055 CA2810003_PS004_055 PS004 055 HOLLY COURT PS + PNEUMATIC TANK SYS A
2810003-056 CA2810003_PS005_056 PS005 056 HAGEN OAKS PS A
2810003-057 CA2810003_PS006_057 PS006 057 HILLCREST PS A
2810003-058 CA2810003_PS007_058 PS007 058 BROWNS VALLEY PS A
2810003-059 CA2810003_PS008_059 PS008 059 A TRANSFER PUMP A
2810003-060 CA2810003_PS009_060 PS009 060 ALTA HEIGHTS PNEUMATIC SYS (6.5K) A
2810003-061 CA2810003_PS010_061 PS010 061 SILVERADO HIGHLANDS PS A
2810003-040 CA2810003_T001_040 T001 040 JAMIESON WTP CLEARWELL (5 MG) A
2810003-041 CA2810003_T002_041 T002 041 HENNESSEY WTP CLEARWELL (5 MG) A
2810003-042 CA2810003_T003_042 T003 042 MILLIKEN WTP CLLEARWELL (2 MG) A
2810003-043 CA2810003_T004_043 T004 043 LAKEVIEW RES TANK (5 MG) A
2810003-044 CA2810003_T005_044 T005 044 MONTECITO TANK (80K) - ALTA HEIGHTS 1 A
2810003-045 CA2810003_T006_045 T006 045 OAKRIDGE (FACLON RIDGE) (32K) A
2810003-046 CA2810003_T007_046 T007 046 HAGEN OAKS (32K) A
2810003-047 CA2810003_T008_047 T008 047 SILVERADO HIGHLANDS (10K) A
2810003-048 CA2810003_T009_048 T009 048 C TANK (2 MG) A
2810003-049 CA2810003_T010_049 T010 049 ALSTON PARK "A" TANK (4MG) A
2810003-050 CA2810003_T011_050 T011 050 B TANK (1 MG) A
2810003-051 CA2810003_T012_051 T012 051 IMOLA TANK (5 MG) A
2810003-003 CA2810003_003_003 003 003 NORTH BAY AQUEDUCT TERMINAL RESERVR-INAC 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.