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Consent

Brentwood City Commission Agenda

Meeting Date:	03/09/2020
Resolution 2020-21 - Authorizing an Agreement w/Civil & Environmental Consultants, Inc.for In-Stream Visual Assessments and Monitoring
Submitted by:	Mike Harris, Engineering
Department:	Engineering

Information

Subject

Resolution 2020-21 - Authorizing an Agreement with Civil & Environmental Consultants, Inc. for In-Stream Visual Assessments and Monitoring

Background

The Tennessee Department of Environment and Conservation (TDEC) publishes a list of streams in Tennessee that are considered impaired (now referred to as streams with unavailable parameters). The list is referred to as the 303d list. Streams can be considered impaired for many reasons, but in urbanized areas like Brentwood the impairment is primarily for siltation (sediment) and loss of aquatic habitat caused by development activities. Virtually all streams in urbanized areas are considered impaired.

Cities are required by TDEC to perform visual assessments of impaired streams in their communities to identify sources of impairment as well as to collect and test water samples from streams potentially impaired by activities within their jurisdictions. The primary purpose of these stream activities is to develop corrective actions to reduce or eliminate the impairment and to assess the effectiveness of the storm water program over time. Under Brentwood's storm water permit issued by TDEC, the City is required to assess all impaired streams over a five-year permit cycle. A map with highlighted stream segments that will be assessed over the current permit cycle is included in the attached proposal. Also attached is an example stream observation that serves to illustrate the types of conditions noted during the assessment.

The attached storm water monitoring proposal was developed by Civil & Environmental Consultants, Inc. (CEC) to ensure we complete all visual assessments and sampling within the required timeframe. Our first round of assessments began in 2011, with additional stream segments assessed each year. As noted in Section 3.0 of the proposal, this fiscal year (Permit Year 4) will include visual assessment of the Little Harpeth River. The cost to perform the required assessments and sampling is $19,170 and adequate funding is included in the Engineering Department's operating budget.

CEC has assisted Brentwood since the inception of the City's stream assessment program and is best suited to provide the required continuing professional services. The attached proposal includes additional details of the tasks to be performed.

Please direct any questions to Service Center Director Mike Harris.

Staff Recommendation

Staff recommends approval of the proposed agreement with Civil & Environmental Consultants, Inc.

Previous Commission Action

At the October 22, 2018 meeting the City Commission approved Resolution 2018-82 for monitoring performed in FY 19. The agreement before you here is for FY 20 or Year 4. Stream assessments are performed over a five-year cycle and the work is scheduled to equalize annual expenditures to the maximum extent practical.

Fiscal Impact

Amount :	$19,170
Source of Funds:	General Fud
Account Number:	110-43800-82645

Fiscal Impact:

Adequate funds are included in the Engineering Department's storm water budget for this work.

Attachments
Resolution 2020-21
Contract No. 2020-026
Map of Streams to be Assessed
Example Stream Observation
Signed Resolution & Contract