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PS Code Transition


Water System No. : CA0410002 Federal Type : C
Water System Name : CAL-WATER SERVICE CO.-CHICO State Type : C
Principal County Served : BUTTE Primary Source : GW
Status : A Activity Date : 03-22-1979
Distribution System Classification : D5 Max Treatment Plant Classification : T2

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
0410002-005 CA0410002_005_005 005 005 WELL 05-02 A
0410002-007 CA0410002_007_007 007 007 WELL 08-01 A
0410002-010 CA0410002_010_010 010 010 WELL 11-01 A
0410002-011 CA0410002_011_011 011 011 WELL 12-01 A
0410002-015 CA0410002_015_015 015 015 WELL 16-01 A
0410002-017 CA0410002_017_017 017 017 WELL 17-01 A
0410002-018 CA0410002_018_018 018 018 WELL 18-01 A
0410002-019 CA0410002_019_019 019 019 WELL 19-01 A
0410002-020 CA0410002_020_020 020 020 WELL 20-01 A
0410002-021 CA0410002_021_021 021 021 WELL 21-01 A
0410002-023 CA0410002_023_023 023 023 WELL 23-01 A
0410002-024 CA0410002_024_024 024 024 WELL 24-01 - STANDBY A
0410002-026 CA0410002_026_026 026 026 WELL 26-01 A
0410002-027 CA0410002_027_027 027 027 WELL 27-01 A
0410002-028 CA0410002_028_028 028 028 WELL 28-01 A
0410002-029 CA0410002_029_029 029 029 WELL 29-01 A
0410002-031 CA0410002_031_031 031 031 WELL 31-01 A
0410002-032 CA0410002_032_032 032 032 WELL 32-01 A
0410002-033 CA0410002_033_033 033 033 WELL 33-01 A
0410002-034 CA0410002_034_034 034 034 WELL 34-01 A
0410002-035 CA0410002_035_035 035 035 WELL 35-01 A
0410002-036 CA0410002_036_036 036 036 WELL 37-01 A
0410002-037 CA0410002_037_037 037 037 WELL 38-01 A
0410002-038 CA0410002_038_038 038 038 WELL 39-01 A
0410002-039 CA0410002_039_039 039 039 WELL 40-01 A
0410002-041 CA0410002_041_041 041 041 WELL 42-01 A
0410002-043 CA0410002_043_043 043 043 WELL 44-01 A
0410002-045 CA0410002_045_045 045 045 WELL 46-01 A
0410002-046 CA0410002_046_046 046 046 WELL 46-01 - GAC A
0410002-049 CA0410002_049_049 049 049 WELL 49-01 A
0410002-050 CA0410002_050_050 050 050 WELL 50-01 A
0410002-052 CA0410002_052_052 052 052 WELL 52-01 A
0410002-053 CA0410002_053_053 053 053 WELL 53-01 A
0410002-054 CA0410002_054_054 054 054 WELL 54-01 A
0410002-056 CA0410002_056_056 056 056 WELL 56-01 A
0410002-057 CA0410002_057_057 057 057 WELL 57-01 A
0410002-059 CA0410002_059_059 059 059 WELL 59-01 A
0410002-061 CA0410002_061_061 061 061 WELL 61-01 A
0410002-062 CA0410002_062_062 062 062 WELL 62-01 A
0410002-064 CA0410002_064_064 064 064 WELL 64-01 A
0410002-065 CA0410002_065_065 065 065 WELL 65-01 A
0410002-067 CA0410002_067_067 067 067 S1 EXTRACTION WELL (CMW101B - HIGH PCE) A
0410002-068 CA0410002_068_068 068 068 S WELLS - TREATED A
0410002-069 CA0410002_069_069 069 069 WELL 67-01 A
0410002-070 CA0410002_070_070 070 070 S2 EXTRACTION WELL (CMW117B - HIGH PCE) A
0410002-071 CA0410002_071_071 071 071 WELL 21-01 - GAC XCLD A
0410002-072 CA0410002_072_072 072 072 S WELLS - INTERMEDIATE A
0410002-074 CA0410002_074_074 074 074 WELL 69-01 A
0410002-075 CA0410002_075_075 075 075 WELL 70-01 A
0410002-076 CA0410002_076_076 076 076 WELL 71-01 A
0410002-077 CA0410002_077_077 077 077 WELL 72-01 A
0410002-091 CA0410002_091_091 091 091 WELL 52-01 - GAC DEAD A
0410002-134 CA0410002_134_134 134 134 WELL 75-01 A
0410002-136 CA0410002_136_136 136 136 WELL 76-01 A
0410002-140 CA0410002_140_140 140 140 WELL 79-01 RAW A
0410002-143 CA0410002_143_143 143 143 WELL 80-01 RAW A
0410002-145 CA0410002_145_145 145 145 S3 EXTRACTION WELL (CH-W-S-03 -- PCE) A
0410002-146 CA0410002_146_146 146 146 S4 EXTRACTION WELL (CH-W-S-04 -- PCE) A
0410002-147 CA0410002_147_147 147 147 WELL 09-03 A
0410002-142 CA0410002_DST_142 DST 142 ANNUAL DBP SAMPLE A
0410002-900 CA0410002_DST_900 DST 900 295 LOCKHEED AVE. - DBP SAMPLE A
0410002-901 CA0410002_DST_901 DST 901 BLUE OAK PARK - DBP SAMPLE A
0410002-902 CA0410002_DST_902 DST 902 824 PENSTEMON WAY - DBP SAMPLE A
0410002-903 CA0410002_DST_903 DST 903 1148 STANLEY AVE - DBP SAMPLE A
0410002-904 CA0410002_DST_904 DST 904 816 WHISPERING WINDS DR. - DBP SAMPLE A
0410002-905 CA0410002_DST_905 DST 905 3263 SUMMIT RIDGE TER. - DBP SAMPLE A
0410002-LCR CA0410002_DST_LCR DST LCR Lead and Copper Sample Sites ** A
0410002-006 CA0410002_006_006 006 006 WELL 07-04 I
0410002-013 CA0410002_013_013 013 013 WELL 14-01 - STANDBY I
0410002-022 CA0410002_022_022 022 022 WELL 22-01 I
0410002-025 CA0410002_025_025 025 025 WELL 25-01 I
0410002-030 CA0410002_030_030 030 030 WELL 30-01 I
0410002-040 CA0410002_040_040 040 040 WELL 41-01 I
0410002-047 CA0410002_047_047 047 047 WELL 47-01 I
0410002-048 CA0410002_048_048 048 048 WELL 48-01 I
0410002-051 CA0410002_051_051 051 051 WELL 51-01 I
0410002-139 CA0410002_139_139 139 139 WELL 40-01 - GAC XCLD 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.