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HomeMy WebLinkAboutNC0045128_Correspondence_20090925NCDENR North Carolina Department of Environment and Natural Resources Beverly Eaves Perdue Governor James G. Merrill, Superintendent Alamance-Burlington School System 1712 Vaughn Road Burlington, North Carolina 27217 Dear Mr. Merrill: Division of Water Quality Coleen H. Sullins Director September 25, 2009 Dee Freeman Secretary Subject: Notification of Jordan Lake Nutrient Requirements NPDES Permits NC0031607, NC0045128, NC0045144, NC0045152, and NCO045161 Alamance-Burlington School System W WTPs Alamance County Governor Bev Perdue recently signed legislation to complete passage of rules for the Jordan Lake Nutrient Management Strategy. The Strategy includes a Wastewater Discharge rule (T15A NCAC 02B .0270) that applies to your wastewater treatment facility. Pursuant to Sub -Item (6)(d) of the rule, I am writing to notify you of the nutrient allocations assigned to your facility. This letter addresses only certain provisions of the Jordan Lake Wastewater Discharge rule. I encourage you to fandHarize yourself with the remainder of this rule. Nutrient Allocations. The Wastewater Discharge rule establishes the maximum loads of nitrogen and phosphorus that can be released from wastewater treatment facilities into the Jordan Lake watershed. The rule provides that these wasteload allocations are to be divided among the existing facilities in proportion to (with specific exceptions) their 2001 permitted flows. It also provides that facilities permitted to discharge 100,000 gpd or more are to receive nitrogen and phosphorus limits equivalent to their individual allocations. Your facility has been assigned nitrogen and phosphorus allocations. The allocations are expressed as annual mass loadings delivered to the lake. Due to foreseeable losses between the discharge point and the lake, they are also expressed as the equivalent discharge loads at the point of discharge. The delivered and the corresponding discharge allocations assigned to your facility are as follows: 1617 Mail Service Center, Ralegh, North Carolina 27699-1617 Location: 512 N. Salisbury St Raleigh, North Carolina 27604 Phone: 919-807.63001 FAX: 9IM07-64921 Customer Service:1-877-M-6748 Internet:w .ncwaterquality.org An Equal Opportunity 1 Affirmative Action Employer One NorthCarolina Natura!!r, r . ' A James G. Merrill, Superintendent Notification of Jordan Lake Nutrient Requirements September 25, 2009 NC0031607 - Western Alamance Middle School NCO031607 Delivered Allocation (lb/yr) Transport Factor (%) Discharge Allocation (lb/yr) Total Nitrogen 351 64 548 Total Phosphorus 53 58 91 2001 Permitted Flow: 0.0150 MGD NC0045128 - Sylvan Elementary School NCO045128 Delivered Allocation (lb/yr) Transport Factor (%} Discharge Allocation (lb/yr) Total Nitrogen 92 84 110 Total Phosphorus 14 76 18 2001 Permitted Flow: 0.0030 MGD NC0045144 - Western Alamance High School NCO045144 Delivered Allocation (lb/yr) Transport Factor (%) Discharge Allocation (lb/yr) Total Nitrogen 269 64 420 Total Phosphorus 41 58 70 2001 Permitted Flow: 0.0115 MGD NC0045152 - Jordan Elementary School NCO045152 Delivered Allocation (lb/yr) Transport Factor (%) Discharge Allocation (lb/yr) Total Nitrogen 230 84 274 Total Phosphorus-F 35 76 46 2001 Permitted Flow: 0.0075 MGD NCO045161- Altamahaw/Ossipee Elementary School NCO045161 Delivered Allocation (lb/yr) Transport Factor (%} Discharge Allocation (lb/yr) Total Nitrogen 254 58 438 Total Phosphorus 36 49 73 2001 Permitted Flow: 0.0120 MGD James G. Merrill, Superintendent Notification of Jordan Lake Nutrient Requirements September 25, 2009 Nutrient Limits. Your facility will not receive new nutrient limits at this time. However, any nutrient limits already in your NPDES permit will remain in effect. If the facilities permitted for less than 100,000 gpd, as a group, approach their allocations for nitrogen or phosphorus, the Division will consider whether nutrient limits are necessary to protect water quality at that time. In the event that nutrient limits become necessary, the limits would equal your facility's discharge allocations. Nutrient Trading. The rule provides that, when one utility connects to another, the allocations held by the closing facility are transferred to the remaining facility. The rule also provides for the trading of allocations among dischargers within each of the major Jordan subwatersheds. Be sure to consult with the Divisions NPDES staff before you consider selling allocation: transactions can have profound implications for your facility and its permit. If you have any questions regarding these allocations, please contact me at (919) 807-6402 or at mike. templeton@ncdenr.gov. cc: Winston-Salem Regional Office NDPES Files Central Files Sincerely, J� &i'L�J� Coleen H. Sullins 3