NC0086193_Permit (Modification)_20011031

NPDES DOCU BENT ! CANNINO COVER SHEET
NPDES Permit:
NC0086193
Maplecrest WTP
Document Type:
Permit Issuance
Wasteload Allocation
Authorization to Construct (AtC)
L
Permit Modification
Complete File - Historical
Engineering Alternatives (EAA)
Staff Report
Instream Assessment (67b)
Speculative Limits
Environmental Assessment (EA)
Permit
History
Document Date:
October 31, 2001
This document is printed on reuiae paper - igiwre any
content on the re'w erIae aide

Awn
r- NCDENR
Mr. Jerry H. Tweed
Heater Utilities, Inc.
P.O. Box 4889
Cary, North Carolina
Dear Mr. Tweed:
27519
Michael F. Easley
Governor
William G. Ross, Jr., Secretary
North Carolina Department of Environment and Natural Resources
Gregory J. Thorpe, Ph.D., Acting Director
Division of Water Quality
October 31, 2001
Subject: NPDES Permit Modifications
Permit NC0069035/Southgate WTP
Permit NC0084468/Keltic Meadows WTP
Permit NC0086142/Oakley Park WTP
Permit NC0086193/Maplecrest WTP
Personnel in the NC DENR Mooresville Regional Office have reviewed the subject permits and discovered a
common typographical error in them. The Effluent Limits and Monitoring Requirements page in each permit
mistakenly lists units of measure for Settleable Solids as milligrams per liter (mg/L). Accordingly, the Division has
modified the subject permit as follows:
> The Effluent Limits and Monitoring Requirements page for each permit has been corrected. The Settleable
Solids limits are now correctly expressed in milliliters per liter (ml/L).
Please find enclosed the revised effluent pages, which should be inserted into your permits. The old pages may
then be discarded. All other terms and conditions contained in the original permits remain unchanged and in full
effect. This permit modification is issued under the requirements of North Carolina General Statutes 143-215.1 and
the Memorandum of Agreement between North Carolina and the U.S. Environmental Protection Agency.
If any parts, measurement frequencies or sampling requirements contained in this permit modification are
unacceptable to you, you have the right to an adjudicatory hearing upon written request within thirty (30) days
following receipt of this letter. This request must be a written petition conforming to Chapter 150B of the North
Carolina General Statutes, filed with the Office of Administrative Hearings (6714 Mail Service Center, Raleigh, North
Carolina 27699-6714). Unless such demand is made, this decision shall be final and binding.
If you have any questions concerning this permit modification, please contact Charles Weaver of the NPDES
Unit at [phone], extension 511.
FoN
cc: Central Files
Mooresville Regional Office, Water Quality Section
Point Source Compliance Enforcement Unit
NPDES Unit
Sincerely,
1L1//v
�,�
regory J. Thorpe, Ph.D.
1617 Mail Service Center, Raleigh, North Carolina 27699-1617 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer Visrr us ON THE INTERNET @ http://h2o.enr.state.nc.usINPDES

Permit NC0086193
A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS — FINAL
During the period beginning on the effective date of this permit and lasting until expiration, the Permittee is
authorized to discharge from outfalls 001 and 002. Such discharges shall be limited and monitored by the
Permittee as specified below:
EFFLUENT
CHARACTERISTICS
LIMITS
MONITORING REQUIREMENTS
Monthly
Average
Daily
Maximum
Measurement
Frequency
Sample Type
Sample Location1
Flow
Quarterly
Estimate
Effluent
Total Suspended Solids
30.0 mglL
45.0 mg/L
Quarterly
Grab
Effluent
Settleable Solids
0.1 mUL
0.2 mUL
Quarterly
Grab
Effluent
Turbidity2
Quarterly
Grab
Upstream & Downstream
Iron
Quarterly
Grab
Effluent
Footnotes:
1. Upstream = immediately upstream of outfall 001. Downstream = at least 100 feet downstream from outfalls
001 & 002.
2. The discharge from this facility shall not cause turbidity in the receiving stream to exceed 50 NTU. If the
instream turbidity exceeds 50 NTU due to natural background conditions, the discharge cannot cause
turbidity to increase in the receiving stream.
There shall be no discharge of floating solids or visible foam in other than trace amounts.

Neater Uuhties' WTP's
Subject: Heater Utilities' WTP's
Date: Wed, 24 Oct 2001 11:51:12 -0400
From: Richard Bridgeman <[e-mail]>
Organization: NC DENR - Mooresville Regional Office
To: Charles Weaver <[e-mail]>
Keltic Meadows (NC0084468), Maplecrest (NC0086193), Oakley Park
(NC0086142), and Southgate (NC0069035) were recently reissued. Fox Run
(NC0072061) has not yet been reissued. The permits indicate that the
Settleable Solids limits are 0.1 mg/L and 0.2 mg/L (gravimetric).
Shouldn't the limits be volumetric (i.e., 0.1 ml/L and 0.2 ml/L)? The
permittee is still conducting volumetric tests.
Richard Bridgeman - [e-mail]
Environmental Chemist II
North Carolina Dept. of Environment & Natural Resources
Div. of Water Quality
919 N. Main St.
Mooresville, NC 28115
Ph: [phone] Fax: [phone]
1 of 1 10/30/2001 10:24AM

•—•..-.../"!
/
A \
.
N' Town of Ramseur —Water Treatment Pl- nt
= !_
72,
117.-Zr,
/
,If
/1
dolph Co nty
Disc rge o Sandy Creek
Class aters
Map:
c. 450
) 1