Statutes, codes, and regulations
New Hampshire Administrative Code
Title Env - Department of Environmental ServicesSubtitle Env-Wq - Water Quality and Quantity ProgramsChapter Env-Wq 1500 - ALTERATION OF TERRAIN
Part Env-Wq 1508 - PERMANENT METHODS FOR PROTECTING WATER QUALITY
Section Env-Wq 1508.06 - Bioretention System with Internal Storage Reservoir

N.H. Admin. Code § Env-Wq 1508.06

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Current through Register No. 45, November 7, 2024
Section Env-Wq 1508.06 - Bioretention System with Internal Storage Reservoir

If a bioretention system with an internal storage reservoir is used, the system shall be designed in accordance with the "UNHSC Standard Detail, Bioretention ISR Stormwater System", February 2020, available as noted in Appendix B, with the additional requirement that if a forebay is used for pretreatment of stormwater, it shall be designed to completely drain within 72 hours.

N.H. Admin. Code § Env-Wq 1508.06

(See Revision Note #1 at chapter heading for Env-Wq 1500) #9343, eff 1-1-09; (See Revision Note #2 at chapter heading for Env-Wq 1500) amd by #9817-A, eff 12-1-10

Amended by Volume XXXVII Number 32, Filed August 10, 2017, Proposed by #12342, Effective 8/15/2017, Expires 8/15/2027.
Amended by Number 41, Filed October 12, 2023, Proposed by #13758, Effective 9/28/2023, Expires 9/28/2033 (see Revision Note #4 at chapter heading for Env-Wq 1500).