Municipal Rates and Utilities Committee

Municipal Rates and Utilities Committee Regular Meeting of September 28, 2023 Page 1 of 3 4.1 MINUTES The public may participate and provide public comments in person or via Zoom Meeting. Please be advised that when all Committee Members are attending the meeting in person, the teleconferencing option is provided as a courtesy to the public. If, for any reason, there are technical difficulties, the Municipal Rates and Utilities Committee meeting will continue in person, provided there is a quorum at the meeting. One tap mobile: +16699006833,,86993830361# US (San Jose) Dial by your location: +1 669 900 6833 US (San Jose) Meeting ID: 869 9383 0361 https://us06web.zoom.us/j/86993830361 Written comments that are received by 5:00 PM. on the Monday before the Municipal Rates and Utilities Committee meeting will be disseminated to the Commission and made available to the public for review on the city’s website. Please provide the agenda item number in the subject line of your email or letter. Public comments will no longer be read into the record. Comments must be sent to municipalrates@ci.rio-vista.ca.us. If you do not have access to a computer, please contact Krystine Ball at 707-374-6447, to make alternative arrangements to submit public comment.

Municipal Rates and Utilities Committee Regular Meeting of September 28, 2023 Page 2 of 3 RIO VISTA MUNICIPAL RATES AND UTILITIES COMMITTEE CHAIRMAN EDWIN OKAMURA VICE CHAIR CHRIS ARMBRUST RICK DOLK HECTOR DELAROSA MICHELLE STAHLMAN REGULAR MEETING BY TELECONFERENCE AND IN PERSON MINUTES THURSDAY, SEPTEMBER 28, 2023 6:00 pm CITY HALL COUNCIL CHAMBERS ONE MAIN STREET RIO VISTA, CALIFORNIA 94571 1. CALL TO ORDER – ROLL CALL – PLEDGE OF ALLEGIANCE PRESENT: Vice Chairman Chris Armbrust, Rick Dolk, Hector Delarosa and Michelle Stahlman ABSENT: Chairman Edwin Okamura Vice Chairman Chris Armbrust opened the meeting at 6:00 PM 2. PUBLIC COMMENT Public comment was not received. 3. DISCLOSURE OF EX PARTE COMMUNICATIONS Committee member Delarosa had a conversation with NBS prior to the meeting in regard to the slide show that was going to be presented. Vice Chair Armbrust had a conversation with Michelle about the website 4. ACTION ITEMS 4.1 Approve Minutes from August 24, 2023 Motion to approve was made by committee member Dolk and second by Committee member Stahlman and passed by the following roll call vote:

Municipal Rates and Utilities Committee Regular Meeting of September 28, 2023 Page 3 of 3 AYES: Vice Chairman Chris Armbrust, Rick Dolk, Hector Delarosa, and Michelle Stahlman NOES: None ABSENT: Chairman Edwin Okamura 5. DISCUSSION ITEMS 5.1 Wastewater Rate Study Draft Financial Plans 5.2 Water Rate Study Draft Cost of Service Analysis and Rate Design 5.3 EDU Balance Associated with Northwest Wastewater Plant 5.4 Storm Drain Rate Study Draft Cost of Service Analysis and Rate Design 5.5 Sub-committee update NBS gave a power point presentation on items 5.1, 5.2 and 5.4, slides are attached. Committee members asked questions and provided comments to both staff and NBS. 5.3 was moved to the next meeting Vice Chair Armbrust and Committee member Delarosa gave an update on the website and sub-committee for 5.5. Public comment was taken throughout the meeting for community input. 6. FUTURE AGENDA ITEMS Future meetings • October 26th meeting will be held on October 19 th • November 23 rd meeting will be held on • December 28 th meeting will be held on 7. ADJOURNMENT Vice Chair Armbrust adjourned the meeting at 9:20 PM ________________________________________________ Krystine Ball, Municipal Rates and Utilities Committee Clerk Krystine Ball

Municipal Rates and Utilities Committee Regular Meeting of September 28, 2023 Page 1 of 3 The public may participate and provide public comments in person or via Zoom Meeting. Please be advised that when all Committee Members are attending the meeting in person, the teleconferencing option is provided as a courtesy to the public. If, for any reason, there are technical difficulties, the Municipal Rates and Utilities Committee meeting will continue in person, provided there is a quorum at the meeting. One tap mobile: +16699006833,,86993830361# US (San Jose) Dial by your location: +1 669 900 6833 US (San Jose) Meeting ID: 869 9383 0361 https://us06web.zoom.us/j/86993830361 Written comments that are received by 5:00 PM. on the Monday before the Municipal Rates and Utilities Committee meeting will be disseminated to the Commission and made available to the public for review on the city’s website. Please provide the agenda item number in the subject line of your email or letter. Public comments will no longer be read into the record. Comments must be sent to municipalrates@ci.rio-vista.ca.us. If you do not have access to a computer, please contact Krystine Ball at 707-374-6447, to make alternative arrangements to submit public comment.

Municipal Rates and Utilities Committee Regular Meeting of September 28, 2023 Page 2 of 3 RIO VISTA MUNICIPAL RATES AND UTILITIES COMMITTEE CHAIRMAN EDWIN OKAMURA VICE CHAIR CHRIS ARMBRUST RICK DOLK HECTOR DELAROSA MICHELLE STAHLMAN REGULAR MEETING BY TELECONFERENCE AND IN PERSON AGENDA THURSDAY,SEPTEMBER 28, 2023 6:00 pm CITY HALL COUNCIL CHAMBERS ONE MAIN STREET RIO VISTA, CALIFORNIA 94571 1. CALL TO ORDER – ROLL CALL – PLEDGE OF ALLEGIANCE 2. PUBLIC COMMENT – See instructions at top of this agenda page 3. DISCLOSURE OF EX PARTE COMMUNICATIONS Municipal Rates and Utilities Committee Members should disclose any communications they have had on the agenda items at this time. 4. ACTION ITEMS 4.1 Approve Minutes from August 24, 2023 5. DISCUSSION ITEMS 5.1 Wastewater Rate Study Draft Financial Plans 5.2 Water Rate Study Draft Cost of Service Analysis and Rate Design 5.3 EDU Balance Associated with Northwest Wastewater Plant 5.4 Storm Drain Rate Study Draft Cost of Service Analysis and Rate Design 5.5 Sub-committee update 6. FUTURE AGENDA ITEMS 7. ADJOURNMENT

Municipal Rates and Utilities Committee Regular Meeting of September 28, 2023 Page 3 of 3 Disclosable public records related to an open session item on a meeting agenda distributed by the City of Rio Vista to the Rio Vista Municipal Rates and Utilities Committee are available on the city’s website & at City Hall for public review at 72 hours prior to a regular meeting and 24 hours prior to a special meeting or, in the event information is delivered to the Commission less than 72 or 24 hours prior to an open meeting, as soon as it is so delivered. To arrange for alternative agenda document format or to arrange aid or services to modify or accommodate persons with a disability to participate in a public meeting contact the Commission Clerk 48 hours in advance of the meeting date by calling (707) 374-6447. Pursuant to applicable laws and regulations, including without limitation, California Government Code Section 65009 and or California Public Resources Code Section 21177, if you wish to challenge in court any of the above decisions (including any action regarding planning, zoning and/or environmental decisions), you may be limited to raising only those issues you or someone else raised at the public hearing(s) described in this notice/agenda, or in written correspondence delivered to the City at, or prior to, the public hearing. CERTIFICATION OF POSTING – I, Krystine Ball, Municipal Rates and Utilities Committee Clerk, for the City of Rio Vista, declare that the foregoing agenda for the September 28, 2023, Regular Meeting of the Rio Vista Municipal Rates and Utilities Committee was posted and available for review on September 22, 2023, on the city’s website and at City Hall, One Main Street, Rio Vista, California, in accordance with Government Code §54954.2(a). ________________________________________________ Krystine Ball, Municipal Rates and Utilities Committee Clerk Krystine Ball

RESOLUTION NO. 2022-059 A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF RIO VISTA APPROVING REVISING THE NUMBER OF GALLONS AN EQUVILANT DWELLING UNIT REPRESENTS FROM 307 TO 250 GALLONS AND REAPPORTIONING THE EXISTING EDUS ASSOCIATED WITH FUNDING THE NORHTWEST WASTEWATER (NWWTP) TREATMENT PLANT WHEREAS, In September 2004, the City of Rio Vista approved Resolution No. 2004-83, establishing the funding agreement with Shea Homes, Inc., Shea Homes, LP (collectively referred to as "Shea"), Seecon Financial and Construction Co. ("Seecon"), the Esperson-Grimm Family Partnership ("Esperson"), and Marks-McCormack Associates, Ltd, Marbello, Inc., and Grizzly, Inc. ("Grizzly/McCormack") (collectively, the "Developers") to fund the construction of the Northwest Wastewater Treatment Plant; and WHEREAS, at that time, an Equivalent Dwelling Unit (EDU) was determined to represent 307 gallons (144 for active adult) of wastewater per home per day; and WHEREAS, in April through June of 2021, the City engineer reviewed wastewater flow data for the Trilogy and Liberty subdivisions; and WHEREAS, the data revealed the actual amount of wastewater used by the family homes in Liberty was approximately 250 gallons per day and the senior homes in Trilogy was approximately 70 gallons per day; and WHEREAS, the City Engineer recalculated the assigned EDUs based on this new flow data and the resultant reapportionment of EDUs became: Remaining unused Original EDU EDUs recalculated Apportionment based on EDU=250 Gallons/day Shea [Trilogy and Liberty] 1,860 0 Seecon 140 172 McCormack/Mah loch 150 61 Esperson [Lewis] 450 553 Liberty (Encore) 609 Brann (Encore) 123 City 657 785 Total EDUs 3,257 2,303 WHEREAS, the City Council hereby determines no further environmental review is required under the California Environmental Quality Act pursuant to State CEQA Guidelines section 15061(b)(3) as it can be seen with certainty that there is no possibility that this EDU readjustment will not have a significant effect on the environment. Resolution No. 2022-059 Page 1 of3 Item 5.3 Attachment

NOW, THEREFORE, BE IT RESOLVED by the City Council of the City of Rio Vista that City Council of the City of Rio Vista does hereby approve the attached NWWTP EDU Analysis And finds the following entities have the listed EDUs remaining: Remaining unused EDUs recalculated based on EDU = 250 Gallons/day Shea [Trilogy and Liberty] 0 Seecon 172 McCormack/Mah loch 61 Esperson [Lewis] 553 Libe rty (Encore) 609 Bra nn (Encore) 123 City 785 Tot al EDUs 2,303 PASSED AND ADOPTED this 2 nd day of AUGUST 2022. I, PAM CARONONGAN, CITY CLERK OF THE CITY OF RIO VISTA, HEREBY CERTIFY the foregoing resolution was introduced and passed at a regular meeting of the Rio Vista City Council by the following roll call vote: AYES: Council Members Okamura, Stanish, Williams, VM Dolk and Mayor Kott NOES: None ABSENT: None ABSTAIN: None ATTEST: Pam Caronongan, C 1ty Clerk Resolution No. 2022 -0 59 Page 2 of 3

NWWWTP EDU Analysis Dai. of Analysis: 7/1/2021 Active Adult Market Rate Commertial I Ecuivl Tota l I I GPD Assumotions l Dcs l•n #of Units GPO Tota l # of Uni ts GPO Tota l # of Units GPO Total Units GPM Notes I AA kt Ra Mkt. Rate Loading as of Analysis Date Tri logy 3008 70 210,560 D 250 22 250 5,500 3,030 216,060 Agr?ed Commercial # =44 I 70 1250 1 307 libertv 100 70 7,000 220 250 SS,000 D 250 320 62,000 Future Commertial TSO I Totol 3108 217,560 220 SS,000 22 5,500 3,350 278,060 I GPO %of Curront Flow Analysis APR, MAY, JUNE 2021 Total Flow # Days Dally Row COIT"4"'rison Actual GPM Assumptions Assu~tion ConstMtlsm 23,ns.ooo 91 260,747 260,747 278,060 6.6% EDU Analysis Q(GPD) Tot GPO Notes EDUs Purtliased 1860 307 571,020 Active Adult Units -3008 70 1210,560 Mark~t Rate Units 0 250 Trilogy Commercial -22 250 (5,500 Transfe~ to UhMv -ass 307 1262,485 Rema lnln• 92,475 Mlct. Rate EDU IGPD 250 Total EDU Bala nce 370 Transfers to Ci ty of RV EDUs Purthascd 657 307 201,699 !Transferred to r<WWNTP I -1400 70 198,000 Remalnln• 103,699 City of Rio Vista Mkt. Rate EDU (GPO 250 Total EDU Ba la nce 415 !Transferred from Ori•. WNTP 415 307 127,405 Total EDU Balance ns -EDUs Purthascd 855 307 262,485 Active Adult Units -774 70 154, 180 libeny Marlcet Rate Units -220 250 155,0001 Commertlal -4 250 (1,000) (Enc«e ) Remainln• 152,305 Mlct. Rate EDU IGPD 250 Total EDU Bala nce 609 8raM EDIJs Purthased 100 307 30,700 Mlct. Rate EDU (GP01 250 (Enc01t) Total EDU Balance 123 Encon, Total Enc01t Total EDU Ba lance (Brann and libeny) 732 --EDUs Purchased 140 307 42,980 Sttno Mkt. Rate EDU (G PO 250 Tota l EDU Ba lance 1n -EDUs Purthased 450 307 138,150 Esperson Mlct. Rate EDU (GPO) 250 (l ewis) Tota l EDU Balance SS3 --EDUs Purthased so 307 15,350 100 transferred to BraM McCormack/Mahloch Mkt. Rate EDU (GPO) 250 Total EDU Balance 61 - Total EDU Ba lance 2.303 Re solut ion No. 2022-059 Page 3 of 3