ITEM:

INFORMATIONAL ITEM/STAFF REPORT

 

18.

MONTHLY WATER SUPPLY AND CALIFORNIA AMERICAN WATER PRODUCTION REPORT

 

Meeting Date:
October 16, 2023

Budgeted: 

N/A

 

From:

David J. Stoldt,

Program/

N/A

 

General Manager

Line Item No.:

 

 

 

Prepared By:

Jonathan Lear

Cost Estimate:

N/A

 

General Counsel Review:  N/A

Committee Recommendation:  N/A

CEQA Compliance:  Exempt from environmental review per SWRCB Order Nos. 95-10 and 2016-0016, and the Seaside Basin Groundwater Basin adjudication decision, as amended and Section 15268 of the California Environmental Quality Act (CEQA) Guidelines, as a ministerial project; Exempt from Section 15307, Actions by Regulatory Agencies for Protection of Natural Resources.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Exhibit 18-A shows the water supply status for the Monterey Peninsula Water Resources System (MPWRS) as of October 1, 2023.  This system includes the surface water resources in the Carmel River Basin, the groundwater resources in the Carmel Valley Alluvial Aquifer and the Seaside Groundwater Basin.  Exhibit 18-A is for Water Year (WY) 2023 and focuses on three factors: rainfall, runoff, and storage.  The rainfall and Streamflow values are based on measurements in the upper Carmel River Basin at Sleepy Hollow Weir. 

 

Water Supply Status:  Rainfall through September 2023 totaled 0.04 inches and brings the cumulative rainfall total for WY 2023 to 35.23 inches, which is 166% of the long-term average through September.  Estimated unimpaired runoff through September totaled 479 acre-feet (AF) and brings the cumulative runoff total for WY 2023 to 209,060 AF, which is 304% of the long-term average through September.  Usable storage for the MRWPRS was 27,420 acre-feet, which is 98% of average through September, and equates to 83% percent of system capacity. 

 

Production Compliance:  Under State Water Resources Control Board (SWRCB) Cease and Desist Order No. 2016-0016 (CDO), California American Water (Cal-Am) is allowed to produce no more than 3,376 AF of water from the Carmel River in WY 2023.  Through September, using the CDO accounting method, Cal-Am has produced 2,417 AF from the Carmel River (excluding 511 AF of Table 13 and 92 AF of Mal Paso.)  In addition, under the Seaside Basin Decision, Cal-Am is allowed to produce 1,474 AF of water from the Coastal Subareas and 0 AF from the Laguna Seca Subarea of the Seaside Basin in WY 2023.  Through September, Cal-Am has produced 1,571 AF from the Seaside Groundwater Basin.  Through September, 1,656 AF of Carmel River Basin groundwater have been diverted for Seaside Basin injection; 806 AF have been recovered for customer use, 511 AF have been diverted under Table 13 water rights, and 3,548 AF of Pure Water Monterey recovered.  Cal-Am has produced 9,118 AF for customer use from all sources through September.  Exhibit 18-B shows production by source.  Some of the values in this report may be revised in the future as Cal-Am finalizes their production values and monitoring data.  

 

EXHIBITS

18-A    Water Supply Status: October 1, 2023

18-B    Monthly Cal-Am production by source: WY 2023

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