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File #: K-1516-85 AMD #2    Version: 2 Name: On-call modeling assistance with APAI
Type: Contract Status: Passed
File created: 1/15/2020 In control: City Council
On agenda: 1/28/2020 Final action: 1/28/2020
Title: AMENDMENT NO. TWO TO CONTRACT K-1516-85: BY AND BETWEEN THE NORMAN UTILITIES AUTHORITY AND ALAN PLUMMER ASSOCIATES, INC., INCREASING THE CONTRACT AMOUNT BY $50,000 FOR A REVISED CONTRACT AMOUNT OF $305,000 TO PROVIDE WATER MODELING ASSISTANCE ON AN ON-CALL BASIS IN ASSOCIATION WITH THE FYE15 WATER WELLS AND SUPPLY LINES PROJECT.
Attachments: 1. City Council Staff Report, 2. K-1516-85 Water Model Amendment 2 Contract signed, 3. APAI Modeling Contract K-1516-85, 4. APAI Amendment 2 PO#273753
Title
AMENDMENT NO. TWO TO CONTRACT K-1516-85: BY AND BETWEEN THE NORMAN UTILITIES AUTHORITY AND ALAN PLUMMER ASSOCIATES, INC., INCREASING THE CONTRACT AMOUNT BY $50,000 FOR A REVISED CONTRACT AMOUNT OF $305,000 TO PROVIDE WATER MODELING ASSISTANCE ON AN ON-CALL BASIS IN ASSOCIATION WITH THE FYE15 WATER WELLS AND SUPPLY LINES PROJECT.

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BACKGROUND: In March 2012, the Norman Utilities Authority (NUA) approved Contract K-1112-124 with Carollo Engineers, Inc. for preparation of the 2060 Strategic Water Supply Plan (the 2060 SWSP). The plan update was needed because the NUA was unable to supply sufficient potable water to meet peak demands during summer months and was concerned about probable regulatory changes affecting both our surface water and groundwater supplies.

The goal of the 2060 SWSP is to strengthen our knowledge of potential short and long-term water supply source(s) for our community and begin implementation of a robust, water supply solution acceptable to the customers of the Norman Water Utility. The 2060 SWSP Ad-Hoc Committee was appointed to ensure open and two-way dialogue with the community, to ensure the suggestions of the public are addressed, and to be able to communicate the objectives and conclusions of the 2060 SWSP to the public.

Eight meetings were held with the 2060 SWSP Ad-hoc Committee and six public meetings were held for public participation and input. Fourteen different portfolios were developed, investigated and evaluated at these meetings. Each portfolio was developed to provide an annual average supply of 29 million gallons per day (MGD) in 2060 and a peak daily supply of 55.4 MGD in 2060. Ultimately, Resolution R-1314-146 was approved by the NUA on June 24, 2014 recommending Portfolio 14 for implementation; this portfolio included the following recommendations:

1. Continued use of Lake Thunderbird as a raw water supply source with treatment at an improved water treatment facility at the existing site (but with the curre...

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