WQ0012348_Final Permit_19961108

State of North Carolina
Department of Environment,
Health and Natural Resources J
•
Division of Water Quality &I
r �
James B. Hunt, Jr., Governor
Jonathan B. Howes, Secretary p C H N
A. Preston Howard, Jr., P.E., Director
November 8, 1996
Brian Harper, Owner
Sand Ridge Homes, Inc.
651 Bear Creek Road
Hubert, North Carolina 28539
Subject: Permit No. WQ0012348
Sand Ridge Homes, Inc. - Four Seasons
Wastewater Rotary Distributor Facilities
Onslow County
Dear Mr. Harper:
In accordance with clarification request received October 29, 1996, from John Wise with
Groundwater Management Associates, Inc., we are forwarding herewith Permit No. WQ0012348 as
amended, dated November 8, 1996, to Sand Ridge Homes, Inc. for the construction and operation of the
subject wastewater rotary distributor facilities. This permit is being amended to correctly identify the
wastewater treatment facility to be constructed. The "clarifiers" were inappropriately referred to as
"aeration basins" in the original permit.
Please be advised of Condition IV.1 which states, "Within ninety (90) days of permit issuance, the
permittee shall submit a copy of the signed and notarized easement for the adjacent property (depicted on
Attachment A), east of the disposal system and verification that the easement has been filed with the
Register of Deeds in Onslow County (as prescribed in 15A NCAC 2L .0107(f). The copies shall be sent
to the Groundwater Section, NC Division of Water Quality, Post Office Box 29578, Raleigh, North
Carolina 27626-0578." Failure to comply with this condition will subject the Pern-ittee to appropriate
enforcement actions and result in the Division initiating actions to void this permit.
This permit shall be effective from the date of issuance until August 31, 2001, shall void Permit
No. WQ00012348 issued September 30, 1996, and shall be subject to the conditions and limitations as
specified therein. PIease pay particular attention to the monitoring requirements in this permit. Failure to
establish an adequate system for collecting and maintaining the required operational information will result
in future compliance problems.
If any parts, requirements, or limitations contained in this permit are unacceptable, you have the
right to request an adjudicatory hearing upon written request within thirty (30) days following receipt of
this permit. 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, P.O. Drawer
27447, Raleigh, NC 27611-7447. Unless such demands are made this perrnit 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

If you need additional information concerning this matter, please contact Mr. Michael D. Allen at
[phone] extension 547.
Sincerely,
A. Presto award, Jr., P.E.
cc: Onslow County Health Department
Groundwater Management Associates, Inc.
Wilmington Regional Office, Water Quality Section
Wilmington Regional Office, Groundwater Section
Bob Cheek, Groundwater Section, Central Office
Training and Certification Unit
Facilities Assessment Unit

NORTH CAROLINA
ENVIRONMENTAL MANAGEMENT COMMISSION
DEPARTMENT OF ENVIRONMENT, HEALTH AND NATURAL RESOURCES
RALEIGH
HIGH RATE INFILTRATION SYSTEM PERMIT
In accordance with the provisions of Article 21 of Chapter 143, General Statutes of North Carolina as
amended, and other applicable Laws, Rules, and Regulations
PERMISSION IS HEREBY GRANTED TO
Sand Ridge Homes, Inc.
Onslow County
111f1timim
construction and operation of a 45,000 GPD wastewater rotary distribution facilities consisting of:
approximately 190 linear feet of 6-inch gravity sewer, an influent pump station with dual 400 GPM
pumps, stand-by generator, high water alarms, and approximately 50 linear feet of 6-inch force main, a
9,000 gallon flow equalization basin with dual 50 GPM pumps and a 25 CFM blower, a manually cleaned
bar screen, two (2) 22,500 gallon coarse bubble aeration basins, two (2) 3,750 gallon clarifiers, one (1)
6,750 gallon aerated sludge holding tank, two (2) 225 CFM blowers, two (2) 16 square foot internal
teritary filter beds, a tablet chlorinator with a 937 gallon chlorine contact chamber, a dosing tank with three
(3) sets of dual submersible effluent pumps (dual 100 GPM pumps and approximately 130 linear feet of 4-
inch force main to Rotary Distributor #1, dual 100 GPM pumps and approximately 720 linear feet of 4-
inch force main to Rotary Distributor #2, and dual 100 GPM pumps and approximately 1,480 linear feet of
4-inch force main to Rotary Distributor #3), three (3) 11,300 square foot rotary distributors (with 120 foot
diameters), continuous on-line monitoring and recording for flow, and a 65 kW stand-by generator with
automatic transfer switch; to serve
two hundred and eight (208) 1 and 2-bedroom homes grouped in fifty-two (52) quadruplexes, and a
poolhouse (with no kitchen facilities) in Four Seasons, with no discharge of wastes to the surface waters,
pursuant to the clarification request received October 29, 1996, and in conformity with the project plan,
specifications, and other supporting data subsequently filed and approved by the Department of
Environment, Health and Natural Resources and considered a part of this permit.
This permit shall be effective from the date of issuance until August 31, 2001, shall void Permit
No. WQ00012348 issued September 30, 1996, and shall be subject to the following specified conditions
and limitations:
I. PERFORMANCE STANDARDS
Upon completion of construction and prior to operation of this permitted facility, a
certification must be received from a professional engineer certifying that the permitted
facility has been installed in accordance with this permit, the approved plans and
specifications, and other supporting materials. Mail the Certification to the Water Quality
Permits and Engineering Unit, P.O. Box 29535, Raleigh, NC 27626-0535.

2. The Wilmington Regional Office, telephone number [phone], shall be notified at
least forty-eight (48) hours in advance of operation of the installed facilities so that an in -
place inspection can be made. Such notification to the regional supervisor shall be made
during the normal office hours from 8:00 a.m. until 5:00 p.m. on Monday through Friday,
excluding State Holidays.
3. In the event that the facilities fail to perform satisfactorily, including the creation of
nuisance conditions, the Pernnittee shall take immediate corrective actions, including those
actions that may be required by this Division, such as the construction of additional or
replacement wastewater treatment or disposal facilities.
4. This permit shall become voidable if the soils fail to adequately assimilate the wastes and
may be rescinded unless the facilities are installed, maintained, and operated in a manner
which will protect the assigned water quality standards of the surface waters and ground
waters. The ponding of wastewater on the surface of the distribution field when the dosing
cycle commences shall be considered as evidence of failure of the soils to adequately
assimilate the wastewater. Additionally, such failure shall be interpreted as a violation of
this permit condition.
5. The residuals generated from these treatment facilities must be disposed in accordance with
General Statute 143-215.1 and in a manner approved by the North Carolina Division of
Water Quality.
6. Adequate measures shall be taken to divert stormwater from the high rate infiltration area
and to prevent wastewater runoff.
7. Diversion or bypassing of the untreated wastewater from the treatment facilities is
prohibited.
8. The issuance of this permit shall not relieve the Permittee of the responsibility for damages
to surface or groundwaters resulting from the operation of this facility.
9. The following buffers shall be maintained:
a) 400 feet between high rate infiltration unit and any habitable residence or place of public
assembly under separate ownership or which is to be sold,
b) 200 feet between high rate infiltration unit and any private or public water supply
source and any streams classified as WS or B,
c) 200 feet from mean high water between high rate infiltration unit and any "SA" or "SB"
classified surface waters,
d) 200 feet from normal high water between high rate infiltration unit and any other
stream, canal, marsh, or coastal waters,
e) 200 feet from normal high water between high rate infiltration unit and any Class I or
Class I1 impounded reservoir used as a source of drinking water,
f) 200 feet between high rate infiltration unit and any other lake or impoundment,
g) 200 feet between high rate infiltration unit and any Drainage systems (ditches, drains,
surface water diversions, etc.) and from any groundwater lowering and surface
drainage ditches,
h) 100 feet between high rate infiltration unit and property lines,
i) 50 feet between treatment units and property lines, and
j) 50 feet between high rate infiltration unit and other treatment units and public right of
ways.
10. A usable green area shall be maintained for wastewater disposal. The green area shall have
the capability of accommodating the average daily flow of the facility being served without
exceeding the loading rates of the green area. A "green area", as defined in 15A NCAC 2H
.0404 (g)(7), is an area suitable for waste disposal, either in its natural state or which has
been modified by planting a vegetative cover of grasses or low growing shrubbery.
2

II . OPERATION AND MAINTENANCE. RECIUIREMENTS
l . The facilities shall be properly maintained and operated at all times.
2. Upon classification of the facility by the Certification Commission, the Permittee shall
employ a certified wastewater treatment plant operator to be in responsible charge (ORC) of
the wastewater treatment facilities. The operator must hold a certificate of the type and
grade at least equivalent to or greater than the classification assigned to the wastewater
treatment facilities by the Certification Commission. The Permi.ttee must also employ a
certified back-up operator of the appropriate type and grade to comply with the conditions
of Title 15A, Chapter 8A, .0202. The ORC of the facility must visit each Class I facility at
least weekly and each Class II, III, and IV facility at least daily, excluding weekends and
holidays, and must properly manage and document daily operation and maintenance of the
facility and must comply with all other conditions of Title 15A, Chapter 8A, .0202. Once
the facility is classified, the Pertnittee must submit a letter to the Certification Commission
which designates the operator in responsible charge within thirty days after the wastewater
treatment facilities are 50% complete.
The application rates for the high rate infiltration system shall not exceed 2.2 GPD/ft2.
4. The facilities shall be effectively maintained and operated as a non -discharge system to
prevent the discharge of any wastewater outside of the high rate infiltration disposal area,
which result from the operation of this facility.
No traffic or equipment shall be allowed on the disposal area except while installation
occurs or while normal maintenance is being performed.
6. The rotary distribution fields shall be raked twice weekly during the months April through
October and once a week during the months of November through March.
7. The screenings removed from the wastewater treatment plant shall be properly disposed in
a sanitary landfill or by other means which have been approved by this Division.
8. Vegetative growth must be kept out of the rotary distribution areas at all times. All
vegetation must be removed manually so that minimal disturbance will occur to the disposal.
area.
9. The application of chemicals to the distribution field(s) is expressly prohibited.
10. An automatically activated standby power source shall be on site and operational at all
times. If a generator is employed as an alternate power supply, it shall be tested weekly by
interrupting the primary power source.
11. The flow measurement device shall be calibrated annually by a representative of a firm
which is routinely engaged in the calibration of flow measurement devices. Records of this
calibration, including all information pertinent to the calibration, shall be available during
any inspection by Division staff.
12. Diffusers shall be cleaned as needed to ensure that adequate aeration is provided. Records
of this maintenance shall be maintained by the permittee.
13. The chlorine tablets used in the disinfection facility shall be of the kind and type specified in
the plans and specifications approved by the Division.

III. MONITORING AND REPORTING REQUIREMENTS
1.
2.
Any monitoring deemed necessary by the Division of Water Quality to insure surface and
ground water protection will be established and an acceptable sampling reporting schedule
shall be followed.
As an indicator of proper operation and maintenance, the facility shall produce an effluent
in compliance with the following limitations:
Parameter Monthly Averaaea Daily Maximumb
Flow 45,000 GPD
BOD5 (5-day, 20°C) 10 mg/1
NH3 as N 4 mg/1
TSS 20 mg/1
Fecal Coliform 14 per 100 ml 43 per 100 ml
a Monthly average shall be the arithmetic mean of all samples collected during the
reporting period.
b Daily maximum shall be the maximum value of all samples collected during the reporting
period.
The effluent from the subject facilities shall be monitored, by the Permittee, at the point
prior to discharge to the rotary distributors for the following parameters:
Parameter_
Sampling Point
Sampling Frequency
Type of Sampke
FIow
Influent or Effluent
Continuous
Recording
BOD5 (5-day, 20°C)
Effluent
*2/Month
Composite
NH3 as N
Effluent
*2/Month
Composite
TSS
Effluent
*2/Month
Composite
Fecal Coliform
Effluent of first pond
*2/Month
Grab
Settleable Matter
Effluent
Daily
Grab
Residual Chlorine
Effluent
Daily
Grab
NO3
Effluent
**Triannually
Grab
TDS
Effluent
* *Triannually
Grab
TOC
Effluent
* *Triannually
Grab
Chloride
Effluent
**Triannually
Grab
The effluent pH shall not be less than 6.0 standard units nor greater than 9.0 standard
units.
* 2/Month sampling frequency only during the months of April through October. During
the remainder of the year, these parameters shall be monitored monthly.
** Triannually sampling shall be conducted during March, July, and November.
If Groundwater sampling indicates or predicts problems with compliance with of the
Groundwater Standards, this permit will be modified to include additional and/or more
restrictive limitations. Z -
4

3. Three (3) copies of all effluent monitoring data (as specified in condition II12) on Form
NDMR-1 shall be submitted on or before the last day of April, August, and December. All
information shall be submitted to the following address:
NC Division of Water Quality
Water Quality Section
Facility Assessment Unit
Post Office Box 29535
Raleigh, N.C. 27626-0535
4. A record shall be maintained of all residuals removed from this facility. The record shall
include the name of the hauler, the permit authorizing the disposal or a letter from a
municipality agreeing to accept the residuals, the date the residuals were hauled, and the
volume of residuals removed.
5. A maintenance log shall be maintained at this facility including, but not limited to, the
following items.
a. Daily sampling results including residual chlorine, settleable matter, and dissolved
oxygen in the aeration basin and at the clarifier weir;
b. Visual observations of the plant and plant site;
c. Record of preventative maintenance (changing of filters, adjusting belt tensions, alarm
testing, diffuser inspections and cleanings, etc.);
d . Date of calibration of flow measurement device;
e. Date and results of power interruption testing on alternate power supply; and
f. Dates fields were raked and arms inspected.
6. Noncompliance Notification:
The Permittee shall report by telephone to the Wilmington Regional Office, telephone
number [phone], as soon as possible, but in no case more than 24 hours or on the
next working day following the occurrence or first knowledge of the occurrence of any of
the following:
a. Any occurrence at the wastewater treatment facility which results in the treatment of
significant amounts of wastes which are abnormal in quantity or characteristic, such as
the dumping of the contents of a basin or tank, the known passage of a slug of
hazardous substance through the facility, or any other unusual circumstances;
b. Any process unit failure, due to known or unknown reasons, that renders the facility
incapable of adequate wastewater treatment, such as mechanical or electrical failures of
pumps, aerators, compressors, etc.;
c. Any failure of a pumping station, sewer line, or treatment facility resulting in a by-pass
of all or any portion of the influent to such station or facility; or
d . Any time that self -monitoring information indicates that the facility is not in compliance
with its permit limitations.
Persons reporting such occurrences by telephone shall also file a written report in letter
form within five (5) days following first knowledge of the occurrence. This report must
outline the actions taken or proposed to be taken to ensure that the problem does not recur.

I V . GROUNDWATER REQUIREMENTS
1. Within ninety (90) days of permit issuance, the permittee shall submit a copy of the signed
and notarized easement for the adjacent property (depicted on Attachment A), east of the
disposal system and verification that the easement has been Bled with the Register of Deeds
in Onslow County (as prescribed in 15A NCAC 2L .0107(f). The copies shall be sent to
the Groundwater Section, NC Division of Water Quality, Post Office Box 29578, Raleigh,
North Carolina 27626-0578,
2. Prior to beginning waste disposal operations, one (1) monitor well designated as MW-6,
shall be installed to monitor groundwater quality. The monitor well shall be constructed
such that the water level in the well is never above or below the screened (open) portion of
the well at any time during the year. The general location and name for each well is marked
on Attachment A. The monitoring well shall be constructed in accordance with this permit,
and approved by the Wilmington Regional Office.
3. The Wilmington Regional Office, telephone number [phone], shall be notified at
least forty-eight (48) hours prior to the construction of any monitoring well so that an
inspection can be made of the monitoring well location. Such notification to the regional
groundwater supervisor shall be made during the normal office hours from 8:00 a.m. until
5.00 p.m. on Monday through Friday, excluding state holidays.
4. Within sixty (60) days of completion of all monitoring wells, the permittee shall submit two
original copies of a scaled topographic map (scale no greater than V:100') signed and
sealed by a professional engineer or a state licensed land surveyor that indicates all of the
following information:
a. the location and 'identity of each monitoring well,
b. the location of the waste disposal system,
c. the location of all property boundaries,
d . the Iatitude and longitude of the established horizontal control monument,
e, the relative elevation of the top of the well casing (which shall be known as the
"measuring point"), and
f, the depth of water below the measuring point at the time the measuring point is
established.
The survey shall be conducted using approved practices outlined in North Carolina General
Statutes Chapter 99C and the North Carolina Administrative Code Title 21, Chapter 56.
The surveyor shall establish a horizontal control monument on the property of the waste
disposal system and determine the latitude and longitude of this horizontal control
monument to a horizontal positional accuracy of +/- 10 feet. All other features listed in a.
through e. above shall be surveyed relative to this horizontal control monument. The
positional accuracy of features listed in a. through e. above shall have a ratio of precision
not to exceed an error of closure of 1 foot per 10,000 feet of perimeter of the survey. Any
features located by the radial method will be located from a minimum of two points.
Horizontal control monument shall be installed in such a manner and made of such
materials that the monument will not be destroyed due to activities that may take place on
the property. The map shall also be surveyed using the North American Datum of 1983
coordinate system and shall indicate the datum on the map. All bearings or azimuths shall
be based on either the true or NAD 83 grid meridian. If a Global Positioning System
(GPS) is used to determine the latitude and longitude of the horizontal control monument, a
GPS receiver that has the capability to perform differential GPS shall be used and all data
collected by the GPS receiver will be differentially corrected.
The maps and any supporting documentation shall be sent to the Groundwater Section,
N.C. Division of Water Quality P.O. Box 29578 Raleigh, N.C. 27626-0578.
0

5 . Within thirty (30) days of completion of all well construction activities, a certification must
be received from a professional engineer certifying that the monitoring wells are located and
constructed in accordance with the Well Construction Standards (15A NCAC 2C) and this
permit. This certification should be submitted with copies of the Well Completion Form
(GW-1) for each well. Mail this certification and the associated GW-1 forms to the Permits
and Compliance Unit, Groundwater Section, P.O. Box 29578, Raleigh, NC, 27626-0578.
6. For the initial sampling of the well as specified elsewhere in the permit, the permittee shall
submit a copy of the GW-1 Form (Well Completion Form) with the Compliance
Monitoring Form (GW-59) for that well. Compliance Monitoring Forms that do not
include copies of the GW-1 form will be returned to the permittee without being processed.
Failure to submit these forms as required by this permit may result in the initiation of
enforcement activities pursuant to NC General Statutes 143-215.6.
7. All wells that are constructed for purposes of groundwater monitoring shall be constructed
in accordance with 15A NCAC 2C .0108 (Standards of Construction for Wells Other than
Water Supply) and any other state and local laws and regulations pertaining to well
construction.
8. The monitor wells must have identification plates and locks securing the wells against
unauthorized access and use in accordance with 15A NCAC 2C .0108.
9. The new monitor well, MW-6, and the existing monitor well, MW-1, shall be sampled
initially after construction and thereafter every May and November for the following
parameters:
NO3 Chloride
Ammonia Nitrogen TDS
TOC Water Level
pH Fecal Colifonns
Volatile Organic Compounds - In November only by Method 6230D below
Method 6230D (Capillary - Column), "Standard Methods For The Examination of
Water and Wastewater", 17th ed., 1989
The measurement of water levels must be made prior to sampling fof the remaining
parameters. The depth to water in each well shall be measured from the surveyed point on
the top of the casing.
The measuring points (top of well casing) of all monitoring wells shall be surveyed to
provide the relative elevation of the measuring point for each monitoring well.
If TOC concentrations greater than 10 mg/1 are detected in any downgradient monitoring
well, additional sampling and analysis must be conducted to identify the individual
constituents comprising this TOC concentration. If the TOC concentration as measured in
the background monitor well exceeds 10 mg/l, this concentration will be taken to represent
the naturally occurring TOC concentration. Any exceedances of this naturally occurring
TOC concentration in the downgradient wells shall be subject to the additional sampling
and analysis as described above.

If any volatile organic compounds are detected by Method 6230D, then the Wilmington
Regional Office Groundwater Supervisor, telephone number [phone], must be
contacted immediately for further instructions regarding any additional follow-up analyses
required. The results of all initial and follow-up analyses must be submitted
simultaneously.
The results of the sampling and analysis must be received on Form GW-59 (Groundwater
Quality Monitoring: Compliance Report Form) by the Groundwater Section, Permits and
Compliance Unit, P.O. Box 29578 Raleigh, N.C. 27626-0578 on or before the last
working day of the month following the sampling month.
10. The COMPLIANCE BOUNDARY for the disposal system is specified by regulations in
15A NCAC 2L, Groundwater Classifications and Standards. The Compliance Boundary is
for the disposal system constructed after December 31, 1983 is established at either (1) 250
feet from the waste disposal area, or (2) 50 feet within the property boundary, whichever is
closest to the waste disposal area. An exceedance of Groundwater Quality Standards at or
beyond the Compliance Boundary is subject to immediate remediation action in addition to
the penalty provisions applicable under General Statute 143-215.6A(a)(1). Exception: The
proposed easement east of the rotga distributors depicted on Attachment A is an
extended Compliance Boundary be and 250 feet from the edge of the rotga distributor
fields).
In accordance with 15A NCAC 2L, a REVIEW BOUNDARY is established around the
disposal systems midway between the Compliance Boundary and the perimeter of the
waste disposal area. Any exceedance of standards at the Review Boundary shall require
remediation action on the part of the permittee.
11. Any additional groundwater quality monitoring, as deemed necessary by the Division, shall
be provided.
V . INSPECTIONS
1. Adequate inspection, maintenance, and cleaning shall be provided by the Permittee to
insure proper operation of the subject facilities.
2. The Permittee or his designee shall inspect the wastewater treatment and disposal facilities
to prevent malfunctions and deterioration, operator errors and discharges which may cause
or lead to the release of wastes to the environment, a threat to human health, or a nuisance.
The Permittee shall maintain an inspection log or summary including at least the date and
time of inspection, observations made, and any maintenance, repairs, or corrective actions
taken by the Permittee. This log of inspections shall be maintained by the Permittee for a
period of three years from the date of the inspection and shall be made available to the
Division of Water Quality or other permitting authority, upon request.
3. Any duly authorized officer, employee, or representative of the Division of Water Quality
may, upon presentation of credentials, enter and inspect any property, premises or place on
or related to the disposal site or facility at any reasonable time for the purpose of
determining compliance with this permit, may inspect or copy any records that must be
maintained under the terms and conditions of this permit, and may obtain , samples of
groundwater, surface water, or leachate.
V I. GENERAL CONDITIONS
1. This permit shall become voidable unless the facilities are constructed in accordance with
the conditions of this permit, the approved plans and specifications, and other supporting
data.

2. This permit is effective only with respect to the nature and volume of wastes described in
the application and other supporting data.
3. This permit is not transferable. In the event there is a desire for the facilities to change
ownership, or there is a name change of the Permittee, a formal permit request must be
submitted to the Division of Water Quality accompanied by an application fee,
documentation from the parties involved, and other supporting materials as may be
appropriate. The approval of this request will be considered on its merits and may or may
not be approved.
4. The subject wastewater treatment and disposal facilities shall be connected to an operational
publicly owned wastewater collection system within 180 days of its availability to the
subject facilities, if the subject wastewater treatment or disposal facilities are in
noncompliance with the terms and conditions of this non -discharge permit or the governing
statutes or regulations. Prior to the initiation of these connection activities, appropriate
approval must be received from this Division.
5. The annual administering and compliance fee must be paid by the Permittee within thirty
(30) days after being billed by the Division. Failure to pay the fee accordingly may cause
the Division to initiate action to revoke this permit as -specified by 15A NCAC 2H .0205
(c)(4).
6. Failure to abide by the conditions and limitations contained in this permit may subject the
Permittee to an enforcement action by the Division of Water Quality in accordance with
North Carolina General Statute 143-215.6(a) to 143-215.6(c).
7. The issuance of this permit does not preclude the Permittee from complying with any and
all statutes, rules, regulations, or ordinances which may be imposed by other government
agencies (local, state, and federal) which have jurisdiction.
8. A set of approved plans and specifications for the subject project must be retained by the
Permittee for the life of this project.
9. The Operational Agreement between the Permittee and the Environmental Management
Commission is incorporated herein by reference and is a condition of this Permit:
Noncompliance with the terms of the Operational Agreement shall subject the Permittee to
all sanctions provided by North Carolina General Statute 143-215.6(a) to 143-215.6(c) for
violation of or failure to act in accordance with the terms and conditions of this Permit.
10. The Permittee, at least six (6) months prior to the expiration of this permit, shall request its
extension. Upon receipt of the request, the Commission will review the adequacy of the
facilities described therein, and if warranted, will extend the permit for such period of time
and under such conditions and limitations as it may deem appropriate.
Permit issued this the eighth day of November, 1996
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
�L L1.
A. Preston Ho ard, Jr., P.E.,' Director
Division of WaVer Quality /-/I
By Authority of the Environmental Management Commission
Permit Number WQO012348

Permit No. WQ0012348
November 8, 1996
ENGINEER'S CERTIFICATION
I, , as a duly registered Professional Engineer in the State of North
Carolina., having been authorized to observe (periodically, weekly, full time) the construction of the
project,
Project Name
Location
for the
Permittee hereby state that, to the best of my abilities, due care and diligence was used in the observation
of the construction such that the construction was observed to be built within substantial compliance and
intent of this permit, the approved plans and specifications, and other supporting materials.
Signature
Date
Registration No.
10

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STATE OF NORTH CAROLL A
COUNTY OF on s l ow Permit No.
AMEEMENT
This AGREEMENT made pursuant to G.S. 143-215.1 (dl) and entered into this
24th
day of
_A -prig. , 19 96, by and between the North Carolina Environmental: Management
Commission, an agency of the State of North Carolina, hereinafter known as the COMMISSION; and
Sand Ridge Homes, Inc. , a corparation/general partnership registered/hcensed to do
business in the State of North Carolina, hereinafter known as the DEVELOPER.
WITNESSETH:
1. The DEVELOPER is the owner of the certain lands lying in ansiow County, upon
which it is erecting and will erect dwelling units and other improvements, said development to be known as
Four Seasons a lanned adult retirement community) (hereinafter the Development)_
2. Tire DEVELOPER desires, to construct a wastewater collection system with pumps, wastewater tmatffiitnt'_
works and/or disposa] facilities (hereinafter Disposal System) to provide sanitary sewage disposal to serve .
the Development on said. lands.
3. The DEVELOPER has applied to the COMMISSION for the issuance of a permit pursuant to G.S. 1435
215.1 to construct, maintain, and operate the Disposal System.
4. The DEVELOPER has created or shall create unit ownership in said dwellings units, other improvemei&
and lands through filing of a Declaration of Unit Ownership (hereinafter Declaration), pursuant to Charter 5+
47C of the North Carolina General Statutes.
The DEVELOPER has caused to be formed or will cause to be formed at the time of filing of the Declaration
the Four Seasons Horeowners Association (hereinafter
Association) a non-profit corporation organized and existing under and by the virtue of the laws of the State
of North Carolina, for the purpose, among others, of handling the property, affairs and business of the
Development; of operating, maintaining, re -constructing and repairing the common elements of the lands
and improvements subject to unit ownership, including the Disposal System; and of collecting dues and
assessments to provide funds for such operation, maintenance, re -construction and repair.
6. The COMMISSION desires to assure that the Disposal System of the Development is properly constructed,
maintained and operated in accordance with law and permit provisions in order to protect the quality of the
waters of the State and the public interest therein..
NOW, THEREFORE, in consideration of the promises and the benefits to be derived by each of the parties
hereto, the COMMISSION and DEVELOPER do hereby mutually agree as follows:
The DEVELOPER shall construct the Disposal System in accordance with the permit and plans and
specifications hereafter issued and approved by the COMMISSION; and shall therc-after properly operate
and maintain such systems and facilities in accordance with applicable permit provisions and law.
The DEVELOPER shall not transfer ownership and/or control of the Disposal System to the Association
until construction has been completed in accordance with the permit and approved plans, and the staff of the
Division of Environmental Management has inspected and approved of the facilities. In order to change the
name of the permit holder, the DEVELOPER roust request that the permit be reissued to the Association,
re The quest roust include a copy of the Association Bylaws and Declaration.
The DEVELOPER sha?1 not transfer, convey, assign or otherwise relinquish or release its .Lsponsibility for
the operation and maintenance of ins Disposal System until a permit has been reissued to the DEVELOPER's
successor.
I,400 cc -;ems of this document were prir,-e4 at 3 cost of 540.46, or 50.029 per copy.

4. Tate DEVELOPER shall provide in the Declaration and Association Bylaws that the Disposal system and
appurtenances thereto are part of the common elements and shall thereafter be properly maintained and
operated in conformity with law and the provisions of the permit for construction, operation, repair, and
maintenance of the system and facilities, The Declaration and Bylaws shall identify the entire wastewater
treatment, collection and disposal system as a common element which will receive the highest priority for
expenditures by the Association except for Federal, State and local taxes, and insurance.
5. The DEVELOPER shall provide in the Declaration and Association Bylaws that the Disposal. System will be
maintained out of the common expenses. In order to assure that there shall be funds readily available to
repair, maintain or construct the Disposal System, beyond the routine operation and maintenance expenses,
the Declaration and Association Bylaws shall provide that a fund be created out of the common expenses.
Such fund shall be separate from the routine maintenance allocated for the facility and shall be part of the
yearly budget-
b. In the event the common expense allocation and separate fund are not adequate for the construction, repair,
and maintenance of the Disposal System, the Declaration and Association Bylaws shall provide for special
assessments to cover such necessary costs. There shall be no limit on the amount of such assessments, and
the Declaration and Bylaws shall provide that such special assessments can be made as necessary at any
time.
7. - If a wastewater collection system and wastewater treatment and/or disposal facility provided by any city,
town, village, county, water and sewer authorities, or other unit of government shall hereinafter become
available to serve the Development, the DEVELOPER shall take such action as is necessary to cause the
existing and future wastewater of the Devtlopment to be accepted and discharged into said governmental
system; and shall convey or transfer as much of the Disposal System, and such necessary easements as the
governmental unit may require as condition of accepting the Development's wastewater.
Recogni=' g that it would be contrary to the public interest and to the public health, safety and welfare for
the Association to enter into voluntary dissolution without having made adequate provision for the continued
proper maintenance, repair and operation of its Disposal System, the DEVELOPER shall provide in the
Association Bylaws that the Association shall not enter into voluntary dissolution without first having
transferred its said system and facilities to some person, corporation or other entity acceptable to and
approved by the CONMSSION by the issuance of a permit.
9. The agreements set forth m' numbered paragraphs 1, 2, 3, 4, 5, 6, 7, and 8 above shall be conditions of any
permit issued by the CO1'YMSSION to the DEVELOPER for the construction, maintenance, repair and
operation of the Disposal System.
10. A copy of this agreement shall be filed at the Register of Deeds in the Counry(ies) where the Declaration is
filed and in the offices of the Secretary of State of North Carolina with the Arr_icles of Incorporation of the
Association.
IN VJ NESS WHEREOF, this agrttment was executed in duplicate originals by the duly authorized
repres-entative of the parties hereto on the day and year written as indicated by each of the parties named below:
FOR THE ENVIRONTMENTAL
MANAGEMENT COM?VIISSION
A. Preston How d, Jr., P.E., irector
Di,,ision of En nmental Management
(DatE)
�G' V
r c
01
o
Sane_ Ridge Eames, Inc.
Name of Developer/Company
'�rvan C. uaroer
Print Name and Title
Vice -?resident
(Date)
4-J-y6

RATING SCALE FOR CLASSIFICATION OF WATER POLLUTION CONTROL SYSTEMS
'tme of Facility: ' SZ27 zt-s Z' L� � Z
owner or Contact Person: r4l N 63Lgli�1R _
Mailing Address: � I �E1i r` ty - - c i2 �-o2: ,\
County: 5_r��,., rs�l' Telephone:
Present Classification: New Facility � Existing Facility
NPDES Per. No, NCoo Nondisc. Per, No.WQ Health Dept.Per No.
Rated by: Telephone: Date:
Reviewed by: _ _t=� Health Dept. Telephone:
Regional Office Telephone,
Central Office Telephone:
ORC:
Check Class ification(s): Subsurface
Wastewater Classification: (Circle One) I
Grade:
_ SprJy Irrigation
it %III € IV
Telephone:
Land Application
Total Points:-`i
*_ • . ttr., :�., r.r u.:er. • ► 1<r .. r� i•..
�r�� • b - •� �s • s � • � �s sue; • - �
• l ► � . • . ems... • '� i. s.►
SUBSUPFACE GL 4—';SF)CAT10N
(deck all units that apply)
1. septic tanks
pump tanks
siphon or pump -dosing systems
sand filters
5. grease traptinferceptcr
6. oillwater separators
7. gravity subsurface iraatment and disposal:
8, pressure subsurface treatment and disposal:
SPRAY iRF?GkTIONCLASS FrCATON
(check all units that appfy)
1.
preliminary treatment (defin+ icn no. 32 }
2.
lagoons
3.
septic tanks
4,
pump tanks
5.
pumps
6.
sand filters
7.
grease trapAnterceptor
8.
oillwater separators
9.
disinfection
10.
chemical addition for nutrientlalgae control
11.
spray irrigaticn of wastewater
In addition to the above classificatlons, pretreatment of wastewater In excess of these components shrli
be rated using the point rating system and will require an operator with an appropriate dual certification,
LAND AFPLICA710hL'RESiDUALS CLASSIFICATION (Applies only to permit holdef)
1. Land application of biosolids, residuals or contaminated soils on a designated 0.e.
WAS i et'lA i ERTRFATM2, i•ACILITYCLAS&FICATK)N
The following systems shall be assigned a Class I ciassitication, ntt lags the flow is of a sgrificant quaniny or the technology is unusually
complex, to require consideration by the Commission on a case -by -case basis: (Check if Appropriate)
1. OiVwater Separafer Systems consisting only of physical separation, pumps and disposal;
2. Septic Tank/Sand Filter systems consisting only of septic tanks, dosing appa•--us, pumps,sand fitters, disinfeciicn
and direct dis&orge:
3. Lacoon Systems consisting only of preliminary treatment, lagoens, pumps, disinfedicn, necessary chemical treatment for
algae or nutrient control, and direct discharge;
4. Closed -loop Recyce Syslers;
5. Groundwater Remecialicn Systems consisting only of oil/water separators, pumps, air -stripping, carbon adsorFticn, disinfection
and dispo :J;
Aqu;acufture ooeralicns with discharge to surface waters;
7. Water Plant slur;ge handiinc and back -wash water treatment;
a. Seafood procesz:nc consisting of screening and disposal.
4. Single-faniiy dis4 aging systems, wtih the exception of Aercbic Treatment Units, will be c'assilied 4 permitted after July 1,
1553 or 4 upon i nspedion by the Division, it is found that the system is not tieing adequately operated or mainlamed- Such
sys'.ems will be nc;"ied of the cla3sific3lien or reclassification by the Commiss cn, in writing,

., +
The following scale is used for rating wastewater treatment facilities: (circle appropriate points)
ITEM POINTS
( 1) Industrial
Preireatmerx Units or industrial Pretreatment Program (see definition No, 33)........................ _......................... 4
(2) DESIGN
FLOW OF PLANT IN gpd (rat applicable to non•contamnaled cooling waters, sludge handling facilities for
water purification plants, totally closed cycle sysiams(ses delinilfon No. 11), and facilities consisting only of Item
(4)(d) or
Items (4)(d) and (11)(d)]
0 - 20.000........................................................ .................................. ......... ................................. .............
20,001 - 50,000.......................................... ........................................................................................... �
50,001 - 100,000 ....................................................................................................................................3
100.001 • 250.000......................................................................_............................I.....................4
250,001 500.000........................................................................_._........................•_.....5
500.001 1,000,000 ...................................................................................................... _a
1.000,001 - 2,000,000...................................................-.............._......._...._......................................_...10
2,000.001 (and up) rate t .rd additional for each 200.000 gpd capacity up to a maximum of ... .............30
Design Flog (gpd) 'lam
(3) PRELIMINARY UNFSrPROCESSES (see ninon No.32)
(a) Bar Scratim ........................... ................_.................................................................................................
a
(b)
Mechanical Screens, Static Screens or Comminuting Devices....... .............. ._........................ ................ 2
(c)
Grit RarrcNal.............................................................................................................................. ...,..........-.1
or
(d)
Mechanical or Aerated Grit Removai................. ................................................................. ___ .................. _2
(e)
Flow Measuring Devlcs...................................................................................._...........................................1
(1)
or
Instrumented Flow Measurement.............................................................................................................
(2)
Pteaerallon................................................................................................•..........................................
{ h }
Influent Flow Equaiizal$on................................................................................................................. 2�
(i)
Grease or Oil Soparalors - Gravity,.. ... ..... _..-..... ................................ _._..........•............_...................._...2
Mechanical..........................................................................................................................................3
Dissolved Air Flotailon ........ .......................................................................................................................8
O)
Prechlorination............................................... ........................................ _................... ............................
(4) PRIMARYTRFATMB•IT WfTSrPROCE.SSES
(a)
Septic Tank (see definition No. 43)..... ............ ...............•----,.................................................................2
(b)
Imhoff Tank, ............. ...... ....................... . .......... . ........................................................................... . ... _5
(c)
Primary Clarifiers .................................... ...._.................................................................................................
(d)
Sonling Ponds or Settling Tanks for Inorganic Nontoxic Materials (sludge handling facilhies for water
purllicatfon plaror, nand, gravel, stone, and other mining operations except rarrew"I activities such as gem
orgold mining)........................................................................................................................................2
(5) SECONDARYTREATME19 NITSir RIXE55ES
(a)
Carbonaceous Stage
(i) Aeration -High Purity Oxygen System .......... ..._. ......... ........................ .................
Diffu&ad Air Symem....._.. ............................................... ...... ......... ......._. ....... 10
Mechanical Air System (fixed, floating or rotor)_..._..._—.... ......_..-_......__._.. ..
Separate Sludge Reaerallon............................................................................................3
(it) Trlckling Filter
HighRate ................................................... .-............. ..................... ........................... 7
StandardRate........... .» ..... ..... ........... .............. .......................
Packed'Tower ................ ............. I ...... _........ _.. ._............ I............................5
Biological Aerated Fisher or Aerated Biological F"r __._ _ _ _ _.1 0
(iv) Aerated Lagoons....-----........ - —�,_......................... ........... •.......... ... 10
(v) Rotating Biological ConiaCors ................ ....10
(vi) Sand Filters -Intermittent biological.._... .... ........................................ .... 2
Recirculating biological... —.............__......... ..... ..................................... ..... .3
'
(vit) Stabilization lagoons ...... .......................... _...... __,......... ....................................
(viii) Clarifier ................. ........ -......... ........ .... ................. ................... ...................... ....5
(ix) Single stage system for combined carbonaceous removal of BOD and nitrogenous removal by
nitrification (sae definition No. 12)(Po'snts for this item have to be in addition to items
(5)(a)(1) through (5)(a)(viii),
ttilizing the extended aeratlon process (sea definition No.3a)........................................02
utilizing other than the axtended aeration process ..... ... _....................................... —...a
(x) Nutrient additions to enhance ROD removal ..... ... _.........................................................5
(xf) Biological Culture ('Super Bugs')addilion............................................................. .........5
(b)
Nitrogenous Stage
(1) Aerallon - High Purity Oxygen System................_._..._.................................. 0
Ditfu&ad Air System ........ ---.-.....................................................................................1 0
Mechanical Air System (raed, floating or rotor)_..._..._.__..._...__..__......._.»_..._......_...8
Separate Sludge Rsaeraiion........................ -...................................................................
(11) Trickling Filter -High Flats ............... ....................»........._.................._................................7
StandardRate .............. ---......... ............... -............................. _........... .......................
PackedTower .......... —•—•--...................................... ............................._................5
(iii) Biological Aerated Fit er or Aerated Biological Filter...... ».... ...,..— ---------------- 1 0
(Iv) RDtWIng Biological Conta"ors....................................... ............................................ 10
(v) Sand Filter - Inisrminera biological_.................................................................................2
Recirculatingbiological._.................................................................._..__......_.............2
(v1) C,atier...................... ..... —_.......................................... ».......................... ..__...._._.........5
(6) i F_R7 ARY 0RADvANCEDTREA7M6 1 4 iLNITS?ROCESSES
(a)
Arvaled Carbon Beds -
whhoul carbon regeneration...............
with carbon regeneraifan..... ................ ................... _.` ........ -..................._..._.......__.........15
(b)
Powdered or Granular Act?vated Carbon Feed-
•aiiheut carbon regeneralien.................................................................................................5
withcarycn regeneration .. .... .............. ................... _............................... I ............................ 1 5
(c)
Air stripping ....................... _....................... —.......................... ........................... ....... .....5
(d)
Deni;rifiu!;on Process ................
(e)
Electrodialysis............................................. ............ ....... ........ ................. ....5
if)
Foam Separation ....................................... ....................... ................................................ ..........................
(g)
tor, Exc'"ange... .................. ........................ —..................
{ h)
Land Application of T reaied E"Juary (see delirWon No. 22b) (not a ;;ii=ble for sand, grave;, stone
and other similar mining operations) by high rate Infillraticn-............................... __ ........... ... ...... .... .... d
(i)
Microscreens... ........................................... --....................... .................................................................... S
( I }
P:xspt rous Removal by Blologicai Processes (See deflnlsicn No. 25i........................................................20
Pciishing Ponds -
(k)
withovl aeration..._., ...... _...............2

(1)
Post Aeration • cascade ............................................. ........................................... .................................... -0
'
c€!lased or mechanical .................
(ml
Reverse Osmosis— ................................................................................,..........................--.................5
(n)
Sand or Affixed-Madia Filters - low vete....................................... .................. .... ............... ..........................
highrate....................................................................
(o)
Treatment processes for removal of metal or cyanide...................................................................................1
5
(p)
treatment processes for removal of toxic materials other than metal or cyanide ..... ............ .................. ..... 1 5
(7)
SLLW
F TREATMFN7
(a)
Sludge Digestion Tank - Heated (anaerobic) ........................ -................. ........ ................... ........... ............
.
Aerobic1.................................. I .................................................... ..........................................
Unheated(anati=oc)...................................... .............. ...,....................................................................._
.
b
SludgeStabilization chemical or thermal ............................................... .........................5J
(c)
Sludge Drying Beds - Gravity......................................................................................................................2
Vacuum Assisted......................................................................................................................................5
(d }
Sludge Eluiriailon ............................ ...................................................................................5
(a)
Sludge Conditioner (chemical or thermal}..................................................................... ...............................5
(f )
Sludge Thickener (gravity).........................................................................................................................5
(g)
Dissolved Air Fora;ion Unit (not applicable to a unit rated as(3)(i)}......... ....................... ...........................
-8
h
Sludge Gas Utilization (JncWding gas storage) ....................................................................2
(1)
Sludge Holding Tank - Aerated....................... ..... ......................................................................................5
.
Nor} ae rat e,d ............-.................................................................I
(J}
Sludge Incinerator (not Including activated carbon regeneration)........................................-........................10
(k)
Vacuum Filter, Centrifuge, or Filler Press or other similar dewatering devices.._..................._........................1
0
(a)
RESIDUALS LITILIZATION/DISPOSAL (including incirteraied ash)
(a)
Lagoons...................................................................................................................................................2
(b)
Land Application (surface and subsurface) (see definition 22a)
by contracting to a land application operator or landfill operator who holds the land application permit
orlandfPi parmrt.............................. ................. ....................................................__.........--.........._........
(c)
Dedicated Landfill(burial) by the parmittee of the wastewater treatment faciliy..._...... ......._.......-................. 5
(9)
D1:Sr4=—G
(a)
iZN
Chlorinalion........................................................................------..........................----...............................6
(b)
Dechlorinauon.......................
(c)
Ozone ...................................... ..................... ................................................................... .......................
(d)
Radiation...............................................................................................................................................5
(10)
CHEWCAL
ADDITION SYSTc'.9(S) ( see defirthlon No. 2) (rot appiicabte to chemical addMorn rated as Item (3)a),
(6)(a), (6)(b), (71(b). (7)(e), (9a), (9)(b) or (9)(c) 5 points each:
List....
.... .............................................................................. ..................... I........................
..........I ................................................................................................_.....................
5
...........................................................................................................-......................
....................................... ............ ................................................................. I..................
(11)
hJISCI�LF�\e0C:5 U4:.S•?FgC�Sc.3
(a)
Hol6ng Ponds, Hoiding Tanks or Settling Ponds for Or;aric or Toxic Materials ir;: udng wastes from mining
operations conlzinin g nitrogen or phosphorus ccmpount-s In amounts signilicar.,fy greater than 1s common
fordomestic wastewater........................................................................................................................<
(b}
Effluent Flow Ecua!�za on (not applicable to storage hasins which are inherent In land application sysiems).._.2
(c)
Stage Discharge (net arplicable to storage basins inherer: in land application systams).._ ..._.__�__
(d }
PUMPS................................................................................................ ......�... — .. _...... .............
(a)
Stand -By Power Sup ly.................................................................................... .............. ................
_
:Y
(t)
The.. —a€ Poll'_ ion Ccmrol Device- ...................... ..................................... ............. ».»........................
TOTAL POINTS......................................................... ...........
CLAw1FiCAMN
Cta_s€.......................................... .................. ............................ ».._.. ». ..5-25 Points
Class Il.........................................................................................................26.50 Points
CIRMi➢....................................................................................I.............I..51-65 Points
C—MIV.................................. ............. .................. ......... .............. I ......... ..... 66•Up Points
------------------------------------------------------
FaclNes having a r;i, g of one through four points, Inclusive, do not require a centfied operator.
Facilities having an a=iv ed sludge process will be assignad a minimum ciassifiralion of Class 11.
Facilities having treatment processes for the removal of metal or cyanide will be zssigned a minimum classification of Class if.
Iarilhies having Ireaimem processes for the bioicgical removal of phosphorus will be assigned a minimum ciasslficalien of Class "I,
.0C104 DEriNTICNS
The loilowing defineicns shelf apply throughout INs 5_"chaaler.
(1) Aclvated Carbon Beds. A physica€'chemical melhcd ;or reducing soluble crcanic material lrsm wastewater effluent; The cclvrr type bads used In this
method will have a flow rate varying from two to a=rhl ga.:cr•s per minute per square fool. and may be ehher upflow or downflow ca.•tcn beds. Carbon may or
may not be regenerated on the wastewater treatment p ant Ohio;
(2) Aerated Lagoons. A basin in which all solids are na:n;wined in suspension and by which t ioiogical oxidation or organic matter Is reduced through artificially
ar~elerated transfer of oxygen on a liow-through basis;
(3) Aerallon. A process of bringing about Imlmate mrr= berween air or high purity oxygen in a ('.quid by rpmying, agitation or &"uslon;(3a) Extended
Aeration- An activated sludge process utilizing a minimum hydraulic detention lime of 18 hc;rs.
(4) AgricuhuraVy managed site. Any Oita on which a c..= is produced, managed, and harves:ac (Crop lncludee gasses, grains, trees, etc-);
(5) Air Strpping. A process by which the arnmonium, ici is first coiweried to dissolved ammonia {pH ad;umment) w-tn the ammonia then released to Ifte
wmcs-ohera by physical means; cr other similar processes which remove pelror6um snaduc:s su=h as benzene, toluene, and xylene;
(6) Carbon Regensradcri. The reGeneratlon of exhaus:ad- cerpon by the use of a lumace to provide extramety high ',ampermures whlch vota;157.G and oxidize the
,�sorbed Impurities;
%} Cartonaceous Stage. A st;'^a of wastewater lraaima,^.I designed to ach;eve 'sacandary' e"!ueni limits;
} Cart rluge. A mec-.a.,ical cevica In which car 'u;al ::: a is used to sepz ale solids imm ,i .'; or to se a;-Ve fc,: s of ditherer[ dens :as;
d} Chem;cal Add"ton Systems- The ad,Ifcn at c:iem€=:Is} to wastewater at an arpllrar,c^ coo, for purposes ct Imcroving OCIIds rernovat, pH adjus;meat,
a€ka!inity control, ear_ ;he Q],Dahilhy to experiment wr„t C.'.'ererc chemicals and cf`tlerern aopiica::cn points to acveve a =Kfiic resuh will be considered one
system; the cat abilrry to add chemica:(s) la dual ur.".s vi:: be rated as one system; rcpahililf to add a chemlczil at a d':srom 2pp1c;cjon points far dillarenl
purposes will result in the uyzems baing rated as seaara:e sys ams;
(10) Cheri:cal 5ludga Cond don n5. The ax n of a c:,srn:d.31 compound such as lime, fame cn•Icride, or a poly.-,.er to wet s'-ud9e ,o coalesce the mass prior to
its applicet:on to a dewatering device;
(11) C:osed Cycis Systems. Use of holding pcncs or hc:-, -V, larks for containment of wastewatef containing incrrar:c, non-lcx€c rrsteda;s from sand, gravel,
cr'Jshed or other Similar oparr:,onO. Suc,1 eyS!rrr,s S`ai! [err= a maximum of hvo pGir:. � ra;ar-iess of pt.;rnpire 'a..,.;gas :r any a:r`ef 1')puj10f'anC0e;
(12) Combined Removal 01 CartcrQcnous p,^C artc r.;er+c:s Fier -,lava[ by Wr5c Lien- A Oise sage syslerrr rez, =c c a_-ave ;v.^" e7luerx 1«^ri s on ECD