Minimum Design Criteria (MDC) Team 08/25/2014 Triangle J COG, Durham Attendees Team Members Others Eban Bean Brian Lipscomb Bradley Bennett Annette Lucas Julie Ventaloro, NC DEMLR Jonathan Bivens Mike MacIntyre Andrew Anderson, NC State Tim Clinkscales Todd Miller Tracy Davis Cameron Moore Boyd Devane Tom Murray Hunter Freeman Robert Patterson Mike Gallant Derek Pielech Joe Hinton Peter Raabe Marc Houle Larry Ragland Ron Horvath JD Solomon Bill Hunt Virginia Spillman Linda Lewis Toby Vinson Rob Weintraub Infiltration Basins continued Group Discussion – Item 13 Runoff volume per inlet device – Tim Don’t think this should be a requirement. If have riprap apron, this wouldn’t matter. – Robert P Any inlet should have properly-sized energy dissipator. – Annette Term sized” may need to be tweaked per guidance from RRC attorneys. – “properly Marc Most muni’s have design standard could say must be designed to local standards, – – methodology. Annette Might be awkward for state manual to refer to local standards. – Marc What does it say in our sediment erosion control manual? – Todd Could we say that it shall be designed to prevent erosion at discharge point? – Annette How about this: to the infiltration system shall be designed to prevent erosion at the – “Inlets discharge point.” JD Is #13 needed at all? – Annette Is it an MDC? – Andrew Sounds like first one would satisfy criteria for MDC. – JD We’re not shortening the document; some of it is creeping back in as legacy. – Brian L We may already have this covered in general MDC portion. – Todd Is this a common problem in the field? – Mike M Yes, but it’s easily correctable. Often not a problem of design, but of construction. – Annette I’m not sure if we’ve addressed it in our general MDCs for all devices I’m not seeing it. Some – –
Minimum Design Criteria (MDC) Team 08/25/2014 Triangle J COG, Durham Attendees Team Members Others Eban Bean Bradley Bennett Jonathan Bivens Tim Clinkscales Tracy Davis Boyd Devane Hunter Freeman Mike Gallant Joe Hinton Marc Houle Ron Horvath Bill Hunt Linda Lewis Brian Lipscomb Annette Lucas Mike MacIntyre Todd Miller Cameron Moore Tom Murray Robert Patterson Derek Pielech Peter Raabe Larry Ragland JD Solomon Virginia Spillman Toby Vinson Rob Weintraub Julie Ventaloro, NC DEMLR Andrew Anderson, NC State Infiltration Basins continued – Group Discussion Item 13 – Runoff volume per inlet device Tim – Don’t think this should be a requirement. If have riprap apron, this wouldn’t matter. Robert P – Any inlet should have properly-sized energy dissipator. Annette – Term “properly sized” may need to be tweaked per guidance from RRC attorneys. Marc – Most muni’s have design standard – could say must be designed to local standards, methodology. Annette – Might be awkward for state manual to refer to local standards. Marc – What does it say in our sediment erosion control manual? Todd – Could we say that it shall be designed to prevent erosion at discharge point? Annette – How about this: “Inlets to the infiltration system shall be designed to prevent erosion at the discharge point.” JD – Is #13 needed at all? Annette – Is it an MDC? Andrew – Sounds like first one would satisfy criteria for MDC. JD – We’re not shortening the document; some of it is creeping back in as legacy. Brian L – We may already have this covered in general MDC portion. Todd – Is this a common problem in the field? Mike M – Yes, but it’s easily correctable. Often not a problem of design, but of construction. Annette – I’m not sure if we’ve addressed it in our general MDCs for all devices – I’m not seeing it. Some