Manilow detailed the SAP, which includes long-term projects designed to mitigate flooding and enhance water quality. Among the advanced technologies employed are closed-circuit television cameras for real-time monitoring and preemptive maintenance of stormwater pipes. This approach aims to preempt catastrophic infrastructure failures, particularly in aging underground systems. The use of various pipe materials, such as aluminized and galvanized steel, was discussed, with attention drawn to the rapid joint failures resulting from chemical reactions between different materials.

A significant part of the discussion centered on the recent drainage improvement project at the Ross Property, which historically contributed to upstream flooding. The city acquired this property to implement innovative repair methods, such as slip lining, minimizing disturbance to surrounding areas while rehabilitating pipes.

The committee also addressed the importance of obtaining permits for any digging projects to prevent accidental damages to stormwater pipes, as illustrated by an incident where a resident inadvertently damaged a pipe while installing a fence. This highlighted the critical role of public awareness and the necessity of calling 811 to locate utilities before digging.

In addition to the SAP, the meeting covered the mandatory compliance with the National Pollutant Discharge Elimination System (NPDES) MS4 permit, regulated by the Department of Environmental Protection. This permit requires extensive maintenance and design guidelines to avoid fines or consent orders. The annual report includes data on televised and cleaned pipes and the quantities of pollutants extracted.

The discussion further explored the types of pipe materials used, noting the historical use of vitrified clay pipes (VCP) and the decision to line existing VCP rather than replace them to avoid traffic disruptions. The degradation of pipes and the formation of voids under asphalt were also addressed, with clarifications provided on the differences between voids caused by failing pipes and true geological sinkholes.

Attention was given to the city’s in-house maintenance team, managing about 90% of pipe repairs and replacements. Despite the small team size, recent hiring has bolstered their capacity to address infrastructure issues. The representative highlighted proactive measures, such as televising and cleaning pipes as the first step in maintenance, and detailed the slip lining process as a cost-effective method for renewing pipes without extensive excavation.

The committee also discussed the regulatory environment, noting the cumbersome permitting processes involving multiple agencies. Concerns were raised about the adequacy of existing stormwater management systems and building codes, with the representative acknowledging that older developments may not meet current standards, posing challenges for future infrastructure upgrades.

The conversation included the implications of recent weather patterns. This necessitates a balanced approach to flood prevention and water quality management, particularly in light of regulatory requirements from agencies focused on downstream impacts.

Regarding specific projects, the Gross Avenue corridor drainage improvement project was highlighted as a significant effort to manage flooding and improve water quality before water reaches the Anclote River. This project involves constructing a trunk line for stormwater collection and storage.

The meeting also addressed the broader context of sustainability, with discussions on urban forestry and environmental management. The tree canopy inventory has been completed, with plans to integrate it into comprehensive and sustainability plans from 2024 to 2027. The net-zero canopy loss policy and invasive species management were emphasized as crucial for maintaining environmental health, particularly in flood-prone areas like Riverside.

The committee acknowledged external pressures, such as actions from utility companies and insurance requirements, contributing to tree loss. Efforts to balance tree removal with replacement were discussed, with historical advocacy efforts recognized.

Furthermore, the committee is drafting a climate action plan with goals of reducing greenhouse gas emissions by 30% by 2030 and 80% by 2050, utilizing baseline data from 2019. The city’s participation in Duke Energy’s Clean Energy Connection Program and an upcoming energy audit of city facilities were mentioned as steps toward achieving net-zero energy use by 2050.