NC0089168_Short Fact Sheet_20241119

FACT SHEET — Public Hearing— November 19, 2024
Martin Marietta Materials, Inc. /Vanceboro Quarry /NPDES Permit # NCO089168
NC DEQ Division of Water Resources
Martin Marietta Materials, Inc.requested renewal of the permit for its Vanceboro Quarry. The extracted mineral is
crushed limestone for use in the construction industry.
Public comments.
Mail to: Attn: Derek Denard,NPDES Wastewater Permitting,Attn: MMM Vanceboro Quarry Permit, 1617 Mail
Service Center,Raleigh,NC,27699-1617 and post-marked no later than November 20, 2024.
Public comments may also be submitted by email to:publiccommentsDW&kdeq.nc.gov
Please include `MMM Vanceboro Quarry Permit"in the email subject line. Comments will be accepted via email
through November 20,2024, 5 p.m.
Facility& Water Body Information
Facility Address: Off Welbourn Road near Vanceboro in Beaufort County
Permitted Flow: 6.0 million gallons per day(MGD from Outfall 001, 6.0 MGD from Outfall 002/
12.0 MGD total
Waste Stream: Mine pit dewatering of groundwater and comingled stormwater
Treatment Units: 2 pit clarification ponds (-50 million gallons each)
Outfall Locations: 001: 35.34750 N, -77.0003°W: https://maps.app.goo. U�gSBBTdf4UKg6A
002: 35.3442°N, -77.0036°W: https://maps.app.goo.gl/bEMpk8uD lg ubCj3k6
Receiving Stream: Unnamed Tributary to Blounts Creek
Stream Classification: Class C; Swamp (SW),Nutrient Sensitive Waters(NSW)
River Basin: Tar-Pamlico
Effluent Monitoring&Limits or Settleable Solids [0.1 ml/L Monthly,0.2 ml/L Daily],pH [5.5 <pH<8.5 (su)],
the Following Parameters: Suspended Solids,Iron, Turbidity [instream not to exceed 50 NTU],Nitrogen,
Phosphorus, and a Pollutant Scan(within 1 year after discharge begins).
Instream Monitoring for: Turbidity,pH, Salinity,Temperature,Benthic Monitoring.
Special Permit Conditions& Electronic reporting, a pumping operation&monitoring plan,best management
Requirements Include the practices for mining, a prohibition of chemical treatment for the discharge,benthic
Following: monitoring details and pollutant scan details.
The permit issued on July 24,2013, and the decision was affirmed by the North Carolina Supreme Court in September
2023.
The draft wastewater permit,technical fact sheet,and related documents are available online at:
https://deg.nc.gov/public-notices-hearings and in Laserfiche
https://edocs.deq.nc.gov/WaterResources/Browse.aspx?id=3176735&dbid=0&repo=WaterResources