EXHIBIT 31-B
Monthly California American Water Diversions from the Carmel River and Seaside Groundwater Basins: Water Year 2010
(All Values in Acre-Feet)
Revised 
Water   Reported Production By Source    Total Production by Systems   Target Production by Systems Monthly Year-to-Date
Year Carmel River Seaside Groundwater Basin Main Laguna Seca Main Laguna Seca MPWRS MPWRS MPWRS MPWRS Diffference
2010   Basin   Coastal Laguna Seca   System Subsystems   System Subsystems Target Reported Target Reported AF %
14,789 14,476 % Diff crb.1 crb.2 ytd scs ytd main ytd
Oct-09 803 250 39 1,053 39 1,272 24 1,296 1,092 1,296 1,092 204 15.74% Oct-08 1,343 1,314 0.0216 893 874 874 440 440 1,314 1,314 1,272
Nov-09 628 335 36 963 36 1,003 16 1,019 999 2,315 2,091 224 9.68% Nov-08 1,059 1,036 0.0217 659 645 1,518 390 831 1,035 2,349 2,275
Dec-09 524 304 26 828 26 923 13 936 854 3,251 2,945 306 9.41% Dec-08 975 954 0.0215 625 612 2,130 342 1,173 954 3,303 3,198
Jan-10 746 31 23 777 23 895 11 906 800 4,157 3,745 412 9.91% Jan-09 945 925 0.0212 945 925 3,055 0 1,173 925 4,228 4,093
Feb-10 720 0 19 720 19 818 10 828 739 4,985 4,484 501 10.05% Feb-09 864 845 0.0220 864 845 3,900 0 1,173 845 5,073 4,911
Mar-10 844 0 25 844 25 940 14 954 869 5,939 5,353 586 9.87% Mar-09 992 971 0.0212 993 972 4,872 0 1,173 972 6,045 5,851
Apr-10 803 49 26 852 26 1,042 17 1,059 878 6,998 6,231 767 10.96% Apr-09 1,100 1,077 0.0209 850 832 5,704 245 1,418 1,077 7,122 6,893
May-10 0 0 6,998 6,231 767 10.96% May-09 1,390 1,361 0.0209 1,090 1,067 6,771 294 1,712 1,361 8,483 6,893
Jun-10 0 0 6,998 6,231 767 10.96% Jun-09 1,483 1,452 0.0209 983 962 7,734 490 2,201 1,452 9,935 6,893
Jul-10 0 0 6,998 6,231 767 10.96% Jul-09 1,597 1,563 0.0213 1,002 981 8,715 582 2,783 1,563 11,498 6,893
Aug-10 0 Aug-09 1,591 1,558 0.0207 1,285 10,000 273 3,056 1,558 13,056 6,893
Sep-10 0 Sep-09 1,450 1,420 0.0207 1,285 11,285 135 3,191 1,420 14,476 6,893
Total    5,068   969 194   6,037 194   6,893 105
Running Difference 14,789 14,476 0.0212 8,904 11,285 3,191 14,476
Source: California American Water 6,998 6,231 767  
Text Box: Notes: 1. Under SWRCB Cease and Desist Order No. WR 2009-0060, Cal-Am is limited to no more than 10,429 acre-feet (AF) of diversions from the Carmel River Basin in Water Year (WY) 2010. 2. Under the Seaside Basin Adjudication Decision, Cal-Am is limited to 3,583 AF of diversions from the Coastal Subareas and 246 AF of diversions from the Laguna Seca Subarea of the Seaside Groundwater Basin for a total diversion limit of 3,829 AF in WY 2010, as modified by the Seaside Basin Watermaster in December 2009. 3. Carmel River diversions are reduced for diversions that are injected into the Seaside Groundwater Basin as part of the Phase 1 ASR Project. Similarly, Seaside Basin diversions are reduced for diversions made to recover water from the Seaside Basin as part of the Phase 1 ASR Project. 4. For WY 2010 through April, 900 AF of water have been diverted from the Carmel River Basin for injection into the Seaside Groundwater Basin and 0 AF of stored water have been recovered from the Seaside Basin as part of the Phase 1 ASR Project. Note that the amount of water diverted for injection is based on the MPWMD meter readings at the Phase 1 ASR site.
Percent Diff
11.0%
    
.