New Hampshire Code of Administrative Rules
Env - Department of Environmental Services
Subtitle Env-Wq - Water Quality and Quantity Programs
Chapter Env-Wq 1500 - ALTERATION OF TERRAIN
Part Env-Wq 1505 - REQUIREMENTS TO PROTECT WATER QUALITY DURING TERRAIN ALTERATION ACTIVITIES
Section Env-Wq 1505.02 - Required Construction Practices

(a) Perimeter controls shall be installed prior to earth moving operations;

(b) Stormwater treatment ponds and drainage swales shall be installed before rough grading the site;

(c) Runoff shall be directed to temporary practices until stormwater BMPs are stabilized;

(d) Basins, ditches and swales shall be stabilized prior to directing runoff to them; and

(e) Erosion control practices shall be inspected at least weekly and after every rain event of 0.5 inch or more, provided that the inspections shall be conducted by the environmental monitor if one is required pursuant to Env-Wq 1505.03(b).