| 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 |
| AMPHIDROME PROCESS | YES or NO no nitrogen credit assigned to date |
YES or NO | Piloting | BOH approval with transmittal form to DEP. If Title 5 variance required use BRP WP 59b. | if neeeded, BRP WP 59b= $200 | BOH approval, plans and manufacturers transmital form to DEP Boston. BRP WP 59b to DEP Regional Office |
| 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 |
| AMPHIDROME
PROCESS |
YES or NO
no nitrogen credit assigned to date |
YES or NO | Piloting | influent and effluent monthly 1st year, quarterly thereafter for pH, BOD, TSS, TKN, NO3, NH3, fecal coliform | seeking approval for:
660 gpd/acre residential use, 550 gpd/acre non-residential use for new construction; remedial use-2 BR on 10,000 sf. lot may expand to 3BR; 2 BR on 15,000 sf may expand to 4 BR; 3BR on 15,000 sf. may expand to 4 BR. |
seeking approval for:
reduced soil absorption system and increased loading rates: application rate (gpd/sf) perc rate (min/in) <5 5-10 10-20 leaching pits 3.0 2.5 1.5 leaching chambers 3.0 2.5 1.5 leaching trenches 2.5 1.5 1.0 must be under maintenance agreement with MA certified operator at all times |