PERMITTING AND USE INFORMATION FOR RECIRCULATING SAND FILTERS

Technology Name To be installed in designated nitrogen sensitive area Is flow design over 2000 gpd? DEP approval status DEP permit required DEP
Fee		 Send application and/or permits to
RECIRC SAND FILTERS NO YES or NO General None, unless Title 5 variance required; if so use BRP WP 59b if needed, BRP WP 59b= $200 BRP WP 59b to DEP Regional Office
  YES NO General None, unless Title 5 variance required; if so use BRP WP 59b if needed, BRP WP 59b= $200 BRP WP 59b to DEP Regional Office
  YES YES General BRP WP 57 $300 BOH approval and BRP WP 57 to DEP Regional Office
      Remedial None provided use is consistent with DEP approved conditions for remedial use. If Title 5 variance req. use BRP WP 59b    

 

Technology Name To be installed in designated nitrogen sensitive area? Is flow design over 2000 gpd? DEP approval status DEP Monitoring Requirements Nitrogen Credit in areas otherwise limited to 440 gpd/acre (systems < 2000 gpd only) Other Conditions/ Allowances for Use
RECIRC SAND FILTERS NO YES or NO General none not applicable must be under maintenance agreement with MA certified operator at all times
  YES YES or NO General quarterly for pH, BOD, TSS, TKN, NO3, NH3 no credit over 2000 gpd.less than 2000 gpd,
550 gpd/acre		 must be under maintenance agreement with MA certified operator at all times
  YES or NO   Remedial effluent quarterly for pH, BOD, TSS, TKN, NO3, NH3   must be under maintenance agreement as above. may be used in soils with perc 60-90 min/in at loading rate of 0.15 gpd/sf. 50% reduction in size of SAS or 2 ft reduction of req. groundwater separation or 2 ft reduction in req. depth of naturally occurring soil under SAS allowed.