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Monitoring Results for Individual Sampling Points
(From 2011 to present only,
for prior to 2011 results please go to EDT Download Page)


Water System No. : CA1910024 Federal Type : C
Water System Name : GSWC - CLAREMONT State Type : C
Principal County Served : LOS ANGELES Primary Source : SWP
Status : A Activity Date : 03-22-1966
Distribution System Classification : D4 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
1910024-002 CA1910024_002_002 002 002 BERKELEY WELL 01 -STANDBY A
1910024-006 CA1910024_006_006 006 006 COLLEGE WELL 01 A
1910024-008 CA1910024_008_008 008 008 DEL MONTE WELL 02 A
1910024-010 CA1910024_010_010 010 010 DREHER WELL 01 A
1910024-017 CA1910024_017_017 017 017 INDIAN HILL WELL 03 A
1910024-019 CA1910024_019_019 019 019 MARLBORO WELL A
1910024-021 CA1910024_021_021 021 021 MIRAMAR WELL 03 A
1910024-031 CA1910024_031_031 031 031 DEL MONTE BLENDING RESERVOIR - TREATED A
1910024-033 CA1910024_033_033 033 033 INDIAN HILL BLENDING RESERVOIR - TREATED A
1910024-034 CA1910024_034_034 034 034 POMELLO BLENDING RESERVOIRS (2)-TREATED A
1910024-035 CA1910024_035_035 035 035 TVMWD CONNECTION PM4 @MOUNTAIN BL-TREATE A
1910024-036 CA1910024_036_036 036 036 TVMWD CONNECTION PM4 @ MILL ST - TREATED A
1910024-037 CA1910024_037_037 037 037 TVMWD CONNECTION PM4 @ INDIAN HILL-TRTD A
1910024-038 CA1910024_038_038 038 038 TVMWD CONNECTION PM21,MIRAMAR PLANT-TRTD A
1910024-039 CA1910024_039_039 039 039 HARRISON WELL 02 A
1910024-040 CA1910024_040_040 040 040 COLLEGE WELL 02 A
1910024-047 CA1910024_047_047 047 047 DEL MONTE - COMBINE EFF - TREATED A
1910024-041 CA1910024_053_041 053 041 DEL MONTE - A1 50% PORT - TREATED A
1910024-042 CA1910024_053_042 053 042 DEL MONTE - B1 50% PORT - TREATED A
1910024-043 CA1910024_053_043 053 043 DEL MONTE - A1 EFF PORT - TREATED A
1910024-044 CA1910024_053_044 053 044 DEL MONTE - B1 EFF PORT - TREATED A
1910024-045 CA1910024_053_045 053 045 DEL MONTE - A2 50% PORT - TREATED A
1910024-046 CA1910024_053_046 053 046 DEL MONTE - B2 50% PORT - TREATED A
1910024-048 CA1910024_053_048 053 048 DEL MONTE - A2 EFF - TREATED A
1910024-049 CA1910024_053_049 053 049 DEL MONTE - B2 EFF - TREATED A
1910024-050 CA1910024_053_050 053 050 DEL MONTE - A1 75% PORT - TREATED A
1910024-051 CA1910024_053_051 053 051 DEL MONTE - B1 75% PORT - TREATED A
1910024-052 CA1910024_053_052 053 052 DEL MONTE - A2 75% PORT - TREATED A
1910024-053 CA1910024_053_053 053 053 DEL MONTE - B2 75% PORT - TREATED A
1910024-065 CA1910024_065_065 065 065 INDIAN HILL WELL 04 A
1910024-067 CA1910024_067_067 067 067 CITY OF UPLAND CONNECTION A
1910024-068 CA1910024_068_068 068 068 MARGARITA WELL 2 A
1910024-070 CA1910024_070_070 070 070 CL2 FOR DREHER WELL 1 A
1910024-071 CA1910024_074_071 074 071 LAG VESSEL 25% PORT A
1910024-072 CA1910024_074_072 074 072 LEAD VESSEL 100% PORT A
1910024-073 CA1910024_074_073 074 073 LAG VESSEL 50% PORT A
1910024-074 CA1910024_074_074 074 074 LAG VESSEL 100% PORT A
1910024-075 CA1910024_075_075 075 075 MARGARITA TREATMENT PLANT FINAL EFFLUENT A
1910024-076 CA1910024_076_076 076 076 POMELLO WELL 5 A
1910024-078 CA1910024_078_078 078 078 MOUNTAIN VIEW WELL 5 A
1910024-079 CA1910024_079_079 079 079 MOUNTAIN VIEW WELL 5 - CHLORINATION A
1910024-800 CA1910024_DST_800 DST 800 SITE 1-3...* A
1910024-801 CA1910024_DST_801 DST 801 SITE 2-2...* A
1910024-802 CA1910024_DST_802 DST 802 SITE 3-1...* A
1910024-803 CA1910024_DST_803 DST 803 SITE 4-1...* A
1910024-LCR CA1910024_DST_LCR DST LCR Lead and Copper Sample Sites ** A
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.