Government Contract | Vermont
Developing Stormwater Design Examples with Specified Supporting Permit Application Materials

Bid Information


Bid Alert No: 00000515607

Bid Title: Developing Stormwater Design Examples with Specified Supporting Permit Application Materials

Agency Bid No. Title: Not Stated

Received Date: 03/18/2016

Close Date: 04/15/2016

Purchase Type: 5 months

Delivery Point: Not Stated, Vermont

Delivery Date: Not Stated

Specifications

DEC seeks proposals for a contractor to provide the necessary personnel, equipment, services,and facilities to generate representative stormwater design examples for three differentdevelopment scenarios to meet the applicable treatment standards using the forms, practices,and procedures specified in the draft Manual.The three different development scenarios are (1) a typical lower density residentialsubdivision project in a rural Vermont setting, (2) a typical high density residential project in a Page 2 of 11more developed/suburban Vermont setting, and (3) a typical commercial developmentproject. Development scenarios shall not be required to be actual locations or sites proposedfor development, but site conditions utilized in example development scenarios shall berepresentative of regional soils, slopes, expected water resources locations, and land cover.The contractor will be responsible for producing respective plan sheets, including detail plansheets for stormwater treatment practices (STPs), forms (schedule A) and correspondingnarrative, calculations, and modeling consistent for the three scenarios noted above withparticular emphasis on:1) Low density rural residential subdivision project Demonstrate compliance with alltreatment standards except the Extreme Flood Protection Standard and portray fullrunoff reduction in accordance with the Hydrologic Condition Method of the ChannelProtection Treatment Standard as specified in the draft Manual.2) High density suburban residential project Demonstrate compliance with all treatmentstandards except Extreme Flood Protection Standard and portray runoff reductionthrough partial Hydrologic Condition Method and partial Extended Detention Method asspecified in the draft Manual.3) Commercial development Demonstrate compliance with all treatment standards andportray runoff reduction through partial Hydrologic Condition Method and partialExtended Detention as specified in the draft Manual.The hypothetical on-site parameters to be reflected for each scenario and correspondingoutputs are as follows:Low density rural residential subdivision project1) New development2) Pre-development condition shall be woods in good condition3) Minimum impervious area of at least 2 acres4) Hydrologic Group B and C soils5) Design example must meet the Channel Protection Treatment Standard fully using theHydrologic Condition Method6) STPs selected for meeting standards shall at a minimum include: Simple Disconnection,Dry Swale, and Infiltration Basin and/or trenchHigh density suburban residential project1) New development2) Pre-development condition shall be woods/meadow in good condition3) Project shall include protected Class II wetland and 50 foot buffer width incorporatedinto design4) Minimum impervious area of at least 5 acres5) Hydrologic Group C and D soilsPage 3 of 116) Design example must meet the Channel Protection Treatment Standard through acombination of the Hydrologic Condition (minimum of 50%) and Extended DetentionMethods7) STPs selected for meeting standards shall at a minimum include: Simple Disconnection,Bioretention, Reforestation, and a Dry Pond with a gravel trench outlet.Commercial development1) Combination of new development and redevelopment2) Pre-development condition shall include existing impervious surfaces and meadow ingood condition3) Minimum impervious area of at least 10 acres4) Cannot be fully located on Hydrologic Group A soils5) Design example must meet the Channel Protection Treatment Standard through acombination of the Hydrologic Condition (minimum of 50%) and Extended DetentionMethods6) STPs selected for meeting standards shall at a minimum include: Disconnection to FilterStrips and Vegetated Buffers, Bioretention, and a Wet Pond with a gravel trench outlet.The selected contractor will be expected to produce specified outputs for each of the threedevelopment scenarios outlined above as draft outputs. DEC will review and provide commenton draft outputs and contractor will be expected to produce revised draft outputs. DEC willreview revised draft outputs and, in the event there are further changes warranted, may thenrequire final edits. Once outputs are deemed final, the contactor will be expected to providefinal outputs (in a suitable and mutually agreed upon electronic format) to DEC. DEC plans touse the final products in publically available guidance materials and in subsequent yetunscheduled trainings. The trainings will be organized and conducted by DEC at times andplaces to be determined. The selected contactor is not expected to participate in conductingthe trainings.Additional activities include: Create a project advisory committee, consisting of the contractor and DEC StormwaterProgram staff, who will meet at DEC offices in Montpelier on at least three (3) occasionsto discuss the project and provide comment on the contractors draft output products.Contractor will be expected to submit progress reports on a monthly basis to DEC concerningthe activities performed under this proposed contract. The progress report shall include thefollowing: A review of work performed, problems and issues encountered. Confirmation that the project is on schedule.Page 4 of 11Contractor will also prepare a final report at the end of project. The report must follow astandard format approved by the DEC. Contractor must include in the report the following: A summary of each development scenario; and, The plan sheets, including pre-development and post-development plan sheets, detailplan sheets for STPs, Notice of Intent (NOI), forms, calculations, modeling, and narrativefor each development scenario.No additional specifications were given.

Bid Related Documents

Download Solicitation Notice

Product Codes: 92508, 92550, 92518, 92670

Agency Information


Issuing Agency: State of Vermont - Department of Environmental Conservation

State: Vermont

Agency Type: State and Local

Contact: David Pasco

Phone: 802-490-6112

Email: david.pasco@state.vt.us

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