ITEM:

INFORMATIONAL ITEM/STAFF REPORT

 

28.

MONTHLY WATER SUPPLY AND CALIFORNIA AMERICAN WATER PRODUCTION REPORT

 

Meeting Date:
September 21, 2020

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 28-A shows the water supply status for the Monterey Peninsula Water Resources System (MPWRS) as of September 1, 2020.  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 28-A is for Water Year (WY) 2020 and focuses on four 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 August 2020 totaled 0.00 inches and brings the cumulative rainfall total for WY 2020 to 17.57 inches, which is 83% of the long-term average through August.  Estimated unimpaired runoff through August totaled 380 acre-feet (AF) and brings the cumulative runoff total for WY 2020 to 45,958 AF, which is 68% of the long-term average through August.  Usable storage for the MRWPRS was 27,980 acre-feet, which is 93% of average through August, and equates to 84% 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 8,310 AF of water from the Carmel River in WY 2020.  Through August, using the CDO accounting method, Cal-Am has produced 6,607 AF from the Carmel River (including ASR capped at 600 AF, Table 13, and Mal Paso.)  In addition, under the Seaside Basin Decision, Cal-Am is allowed to produce 1,820 AF of water from the Coastal Subareas and 0 AF from the Laguna Seca Subarea of the Seaside Basin in WY 2020.  Through August, Cal-Am has produced 1,882 AF from the Seaside Groundwater Basin.  Through August, 917 AF of Carmel River Basin groundwater have been diverted for Seaside Basin injection; 430 AF have been recovered for customer use, and 218 AF have been diverted under Table 13 water rights.  Cal-Am has produced 8,799 AF for customer use from all sources through August.  Exhibit 28-C 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.  The 12-month moving average of production for customer service is 9,702 AF, which is below the rationing trigger of 10,130 AF for WY 2020.

 

EXHIBITS

28-A    Water Supply Status: September 1, 2020

28-B    Monthly Cal-Am Diversions from Carmel River and Seaside Groundwater Basins:  WY 2020

28-C    Monthly Cal-Am production by source: WY 2020

U:\staff\Boardpacket\2020\20200921\InformationalItems\28\Item-28.doc