Stormwater Manual Update Background Documents

Background and Goals

The Stormwater Program began a process to update the Manual in 2009, but suspended the effort due to resource constraints. The stakeholder comments that we received during the 2009 process were carefully considered when we contracted with Stone Environmental in 2012 to evaluate the current state of stormwater management practice in four main areas of practice:

DRAFT Multi-Sector General Permit 3-9003 (MSGP) Public Notice

The draft Multi-Sector General Permit 3-9003 for Stormwater Discharges Associated with Industrial Activities (MSGP) has been placed on public notice. The draft MSGP covers stormwater discharges from all industrial activities with Standard Industrial Classification (SIC) codes listed in Table D of the permit. Typical industries regulated by the MSGP include: sawmills, manufacturing operations, mining operations, metal fabrication, auto salvage yards, transportation and warehousing, wastewater treatment plants, and textile mills.

Combined Sewer Overflow Rule

15 September 2016
As of the effective date of this Rule, this Rule supersedes the state of Vermont’s “Combined Sewer Overflow Control Policy,” dated June 1990.

Stormwater Management Rule

15 March 2011
(a) The Secretary is issuing this Rule to enhance and clarify the management of stormwater runoff to waters that are not stormwater-impaired waters. Stormwater management is necessary to reduce stream channel instability, pollution, sedimentation and local flooding, all of which have adverse impacts on the surface water and land resources of the State. Stormwater management is also necessary to protect groundwater. (b) This Rule: (1) Establishes a state permit program for post-construction management of regulated stormwater runoff to waters that are not stormwater-impaired waters; (2) Establishes permitting thresholds for discharges of regulated stormwater runoff that require a stormwater discharge permit; (3) Sets forth treatment standards designed to minimize the adverse impacts of regulated stormwater runoff; (4) Provides for the issuance of individual and general permits; (5) Specifies application requirements, including the contents of permit applications and public notification requirements; and (6) Amends the Vermont Stormwater Management Manual.

Stormwater Management Rule for Stormwater-Impaired Waters

06 January 2006
The Stormwater Management Rule for Stormwater-Impaired Waters establishes an interim and long-term permit program for discharges of regulated stormwater runoff to stormwater-impaired waters from new development, existing development, redevelopment and the expansion of impervious surfaces. The interim program provides for the issuance of individual stormwater permits while the Agency develops a long-term cleanup plan for each stormwater-impaired water, known as a Total Maximum Daily Load (TMDL) or Water Quality Remediation Plan (WQRP). After cleanup plans are developed, the Rule provides for the issuance of both general permits and individual permits to implement the plans. The Rule also provides for the permitting and implementation of offset projects and payment of stormwater impact fees to mitigate the impact of stormwater discharges to stormwater-impaired waters.


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