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File #: 22-819    Version: 1
Type: Report Status: Agenda Ready
File created: 7/21/2022 In control: PARKS, ARTS, & COMMUNITY SERVICES COMMISSION
On agenda: 7/28/2022 Final action:
Title: REVIEW OF PROPOSED IMPROVEMENTS TO THE TEWINKLE LAKE SYSTEM
Attachments: 1. REPORT: Review of Proposed Improvements to The Tewinkle Lake System, 2. 1. PACE Assessment Report & Recommendations
TITLE:
title
REVIEW OF PROPOSED IMPROVEMENTS TO THE TEWINKLE LAKE SYSTEM
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DEPARTMENT: PUBLIC WORKS DEPARTMENT/MAINTENANCE SERVICES DIVISION
PRESENTED BY: ROBERT RYAN, MAINTENANCE SERVICES MANAGER
CONTACT INFORMATION: ROBERT RYAN, MAINTENANCE SERVICES MANAGER, (714) 327-7499

RECOMMENDATION:
recommendation
Receive community input and provide recommendations to staff regarding the proposed improvements to the TeWinkle Lake system.
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BACKGROUND:
TeWinkle Park is a 49-acre park dedicated in 1965 in honor of the first mayor of the City of Costa Mesa, Charles TeWinkle. The TeWinkle Park Lakes are artificial water features consisting of two (2) lakes, two (2) ponds, an intermediate pond, five (5) streams, nearly two (2) acres of water surface, and approximately 3,250 feet of shoreline. A partial renovation of the lakes was undertaken in 2004. Over the past several years, water leakage has developed in the two primary lakes, resulting in significant water loss as well as undermining of the lake bed and surrounding soil areas.
The intermediate pond, along with the dual streams were not constructed during the prior renovation and lack waterproofing. In addition, staff has observed excess water percolation and infiltration losses into the soil below and around the lakes. Pumps, the gravel bed biological filter, as well as the aeration systems, have been non-functioning and are in need of repair. The water quality of the lakes have also been compromised due to excess nutrient input.
At their regularily scheduled meeting on December 7, 2021, the City Council approved an agreement between the City and Pacific Advanced Civil Engineering (PACE). PACE will be responsible for performing the engineering design evaluation of the lake systems, and producing a set of working plans, specifications and estimates that will address existing deficiencies. In addition to improving the functionality and operational efficiency of the lake system, the project also se...

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