NC0050661_Permit Modification_19970815

NPDES DOCUMENT SCANNING COVER SHEET
Permit:
NC0050661
Macclesfield WWTP
NPDES
Document Type:
Permit Issuance
Wasteload Allocation
Authorization to Construct (AtC)
Permit Modification
Complete File - Historical
Engineering Alternatives (EAA)
Owner Name Change
Instream Assessment (67b)
Speculative Limits
Environmental Assessment (EA)
Document Date:
August 15, 1997
Thies document ios printed on renege paper - ignore any
content on the reireree wide

State of North Carolina
Department of Environment,
Health and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Wayne McDevitt, Secretary
A. Preston Howard, Jr., P.E., Director
Mr. William Dilda
P.O. 185
Macclesfield, North Carolina 27852
Dear Mr. Dilda:
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August 15, 1997
Subject: Modification to NPDES
Permit No. NC0050661
Town of Macclesfield WWTP
Edgecombe County
On January 30, 1995, the Division of Water Quality issued NPDES Permit No.
NC0050661 to Town of Macclesfield. Based on a review of this permit file by the Raleigh
Regional Office, the Division is hereby forwarding the following modification to the subject
permit. This permit modification is issued to delete chronic toxicity testing from the effluent
page and Part III Conditions page. Please insert the enclosed effluent pages and Part III
Conditions page and discard the old effluent pages and Part III Conditions page. This permit
modification becomes effective immediately.
All other terms and conditions in the original permit remain unchanged and in full
effect. These modifications are issued pursuant to the requirements of North Carolina General
Statute 143-215.1 and the Memorandum of Agreement between North Carolina and the U. S.
Environmental Protection Agency dated December 6, 1983.
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
in the form of a written petition, conforming to Chapter 150B of the North Carolina General
Statutes, and filed with the Office of Administrative Hearings, Post Office Drawer 11666,
Raleigh, North Carolina 27604. Unless such demand is made, this decision shall be final and
binding.
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post -consumer paper

Mr. William Dilda
Page Two
August 15, 1997
If you have any questions concerning this permit, please contact Mr. Mack Wiggins at
telephone number 919/733-5083, Extension 542.
Sincerely,
reston Howard, 1., P.E.
cc: Central Files
Raleigh Regional Office / Water Quality Section
Permits and Engineering Unit
Facility Assessment Unit

A. ( ). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS SUMMER (April 1 - October 31) Permit No. NC0050661
During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is authorized to discharge from
outfall(s) serial number 001. Such discharges shall be limited and monitored by the permittee as specified below:
Effluent Characteristics Discharge Limitations Monitoring
Measurement
Monthly Avg.
Flow 0.175 MGD
BOD, 5 day, 20°C" 6.0 mg/I
Total Suspended Residue" 30.0 mg/I
NH3 as N 2.0 mg/I
Dissolved Oxygen
Fecal Coliform (geometric mean) 200 /100 ml
Total Residual Chlorine
Temperature
Total Nitrogen (NO2 + NO3 + TKN)
Total Phosphorus
Conductivity
Weekly Avg. Daily Max
9.0 mg/I
45.0 mgil
400 /100 ml
Frequency
Continuous
Weekly
Weekly
Weekly
Weekly
Weekly
2/Week
Weekly
Quarterly
Quarterly
Requirements
Sample*Sample
Type Location
Recording 1 or E
Composite E, l
Composite E, 1
Composite E
Grab E, U, D
Grab E, U, D
Grab E
Grab U,D
Composite E
Composite E
Grab U, D 'Ci
Sample locations: E - Effluent, I - Influent, U - Upstream at least 100 feet, D - Downstream at least 300 feet. Upstream and downstream
samples shall be grab samples.
** The monthly average effluent BOD5 and Total Suspended Residue concentrations shall not exceed 15 % of the respective influent value
(85% removal).
** The daily average dissolved oxygen effluent concentration shall not be less than 6.0 mg/1.
The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units and shall be monitored daily at the effluent by grab sample.
There shall be no discharge of floating solids or visible foam in other than trace amounts.
CONTINUED... .

A. ( ). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS SUMMER (April 1 - October 31) Permit No. NC0050661
During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is authorized to discharge from
outfall(s) serial number 001. (Continued)
Effluent Characteristics
Temperature
Discharge Limitations
Units (specify)
Monthly Avg. Weekly Avg.
Daily Max
Monitoring
Measurement
Frequency
Daily
Requirements
Sample
Type
Grab
*Sample
Location
E

A. O. EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS WINTER (November 1 - March 31) Permit No. NC0050661
During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is authorized to discharge from
outfall(s) serial number 001. Such discharges shall be limited and monitored by the permittee as specified below:
Effluent Characteristics Discharge Limitations Monitoring
Measurement
Monthly Avg.
Flow 0.175 M
BOD, 5 day, 20°C" 8.0 mg/I
Total Suspended Residue" 30.0 mg/I
NH3 as N 3.0 mg/1
Dissolved Oxygen "'
Fecal Coliform (geometric mean) 200 /100 ml
Total Residual Chlorine
Temperature
Total Nitrogen (NO2 + NO3 + TKN)
Total Phosphorus
Conductivity
Weekly Avg.
12.0 mg/I
45.0 mg/I
400 /100 ml
Daily Max
Frequency
Continuous
Weekly
Weekly
Weekly
Weekly
Weekly
2/Week
Weekly
Quarterly
Quarterly
Requirements
Sample *Sample
Type Location
Recording I or E
Composite E, I
Composite E, I
Composite E
Grab E, U, D
Grab E. U, D
Grab E
Grab U,D
Composite E
Composite E
Grab U, D)C
* Sample locations: E - Effluent, I - Influent, U - Upstream at least 100 feet, D - Downstream at least 300 feet. Upstream and downstream
samples shall be grab samples.
** The monthly average effluent BOD5 and Total Suspended Residue concentrations shall not exceed 15 % of the respective influent value
(856, removal).
*** The daily average dissolved oxygen effluent concentration shall not be less than 6.0 mg/1.
The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units and shall be monitored daily at the effluent by grab sample.
There shall be no discharge of floating solids or visible foam in other than trace amounts.
CONTINUED... .

A. (). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS WINTER (November 1 - March 31) Permit No. NC0050661
During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is authorized to discharge from
outfall(s) serial number 001. (Continued)
Effluent Characteristics
Temperature
Discharge Limitations
Units (specify)
Monthly Avg. Weekly Avg.
Daily Max
Monitoring
Measurement
Frequency
Daily
Requirements
Sample
Type
Grab
*Sample
Location
E

Part III Permit No. NC0050661
F. Nutrient Condition for Permits Without Phosphorus Limits
This permit may be modified, or revoked and reissued to include an effluent limitation on nutrients
for this discharge depending upon the following:
1. The findings of a study by the Division of Water Quality determine nutrient control is
necessary.
2. Local actions do not successfully reduce the nutrient loading on the receiving waters.
3. The onset Of problem conditions in the receiving waters.