WQ0003941_Final Permit_19910319

State of North Carolina
Department of Environment, Health and Natural Resources
Division of Environmental Management
512 North Salisbury Street • Raleigh, North Carolina 27611
James G. Martin, Governor
William W. Cobey, Jr., Secretary
March 19, 1991
Mr. James P. Carolan, President of Westex Division
Lydall, Incorporated
Post Office Box 109
Hamptonville, North Carolina 27020
Dear Mr. Carolan:
George T. Everett, Ph.D.
Director
Subject; Permit No. WQ0003941
Lydall, Incorporated
Lagoon Dewatering
Spray Irrigation
Yadkin County
In accordance with your application received August 1, 1990, we, are forwarding herewith
Permit No. WQ0003941, dated March 19, 1990, to Lydall, Incorporated for the construction and
for the one time operation of a wastewater treatment and spray irrigation disposal facility for the
dewatering and abandonment of Lydall, Incorporated's lagoon.
This permit shall be effective from the date of issuance until March 31, 1992, and shall
void Permit No. WQ0000250 issued February 28, 1989, and shall be subject to the conditions and
limitations as specified therein. Please 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 to you,
you have the right to request an adjudicatory hearing upon written request within 30 days
following receipt of this permit. This request must be in the form of a written petition, conforming
to Chapter 150B of 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
permit shall be final and binding.
One set of approved plans and specifications is being forwarded to you. If you need
additional information concerning this matter,,pL-,ase contact Mr. Mark Hawes at 919/ 733-5083.
Y,
T. E
CC' Yadkin County Health Department
Winston-Salem Regional Office
Groundwater Section
Training and Certification Unit
Aquaterra, Inc.
Pollution Prevention Pays
P.O. Box 27687, Raleigh, North Carolina 27611-7687 Telephone [phone]
An Equal Opportunity Affirmative Action Employer

NORTH CAROLINA
ENVIRONMENTAL MANAGEMENT COMMISSION
DEPARTMENT OF ENVIRONMENT, HEALTH AND NATURAL RESOURCES
RALEIGH
SPRAY IRRIGATION 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
Lydall, Incorporated
Yadkin County
IEel M,ll:l�l
construction and and one time operation of a 63,218 gpd wastewater treatment and spray irrigation
disposal facility consisting of a 75 gpm influent pump, a 500 gallon flocculation tank with mixer,
an inclined plate clarifier with a clarification area of 160 sf and a plate angle of 55 degrees, a 10
gpm sludge return pump, a 1,500 gallon holding tank, an inline flow totalizer, a 300 gpm (25 hp)
irrigation pump, two sprinklers each with a spray diameter of 273 feet, and all the associated
piping, valves, and appurtenances to serve the lagoon dewatering and abandonment operation at
Lydall, Incorporated's Hamptonville facility with no discharge of wastes to the surface waters,
pursuant to the application received August 1, 1990 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 March 31, 1992, and shall
void Permit No. WQ0000250 issued February 28, 1989, and shall be subject to the following
specified conditions and limitations:
I. PERFORMANCE STANDARDS
1. 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. Mail the Certification to the Permits and Engineering Unit, P.O. Box
27687, Raleigh, NC 27611.
2. The Winston-Salem Regional Office, phone no. [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. The spray irrigation facilities shall be effectively maintained and operated at all times so
that there is no discharge to the surface waters, nor any contamination of ground waters
which will render them unsatisfactory for normal use. In the event that the facilities fail
to perform satisfactorily, including the creation of nuisance conditions or failure of the
irrigation area to adequately absorb the wastewater, the Permittee shall take such
immediate corrective action to correct the problem, including actions as may be required
by the Division of Environmental Management.

4. The issuance of this pep
fit shall not relieve the Permittee of the responsibility for
damages to surface or groundwaters resulting from the operation of this facility.
5. The sludge generated from these treatment facilities must be disposed of in accordance
with General Statute 143-215.1 and in a manner approved by the North Carolina
Division of Environmental Management.
6. Diversion or bypassing of the untreated wastewater from the treatment facilities is
prohibited.
7. The following buffers shall be maintained:
a) 400 feet between wetted area and any residence under separate ownership,
b) 150 feet between wetted area and property lines,
c) 100 feet between wetted area and wells,
d) 100 feet between wetted area and drainageways or surface water bodies,
e) 50 feet between wetted area and public right of ways,
f) 100 feet between wastewater treatment units and wells,
g) 50 feet between wastewater treatment units and property lines.
11. OPERATION AND MAINTENANCE REQ111REMENT
1. The facilities shall be properly maintained and operated at all times
2. Upon classification of the facility by the Certification Commission, the Perrnittee shall
employ a certified wastewater treatment plant operator to be in responsible charge of the
wastewater treatment facilities. The operator must hold a certificate of the type and grade
at least equivalent to the classification assigned to the wastewater treatment facilities by
the Certification Commission. Once the facility is classified, the Permittee 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.
3. A suitable vegetative cover shall be maintained.
4. Irrigation shall not be performed during inclement weather or when the ground is in a
condition that will cause runoff. No spray irrigation of wastewater shall be undertaken
for a period of 24 hours following a 1/2 inch rainfall event.
5. Adequate measures shall be taken to prevent wastewater runoff from the spray field.
6. The facilities shall be effectively maintained and operated as a non -discharge system to
prevent the discharge of any wastewater resulting from the operation of this facility.
7. The application rate shall not exceed: a) 0.54 gpd/sf and b) 0.25 in/hr.
8. The Permittee shall allow at least 48 hours between the beginning of spray events (i.e.
wastewater shall be sprayed every other day).
9. No type of wastewater other than that from the lagoon dewatering operation at Lydall,
Incorporated's Hamptonville facility shall be sprayed onto the irrigation area.
10. No traffic or equipment shall be allowed on the disposal area except while installation
occurs or while normal maintenance is being performed.
11. Public access to the land application sites shall be controlled during active site use. Such
controls may include the posting of signs showing the activities being conducted at each
site.
2

12. If the soils fail to adequately absorb the wastewater spraW, ,upon this site, including
creation of runoff conditions or any signs of groundwater breakout, the Winston-Salem
Regional Office may immediately reduce the wastewater application rates by verbal or
written notice to Lydall, Incorporated.
III. MONITORING AND REPORTINQ REQUIREMENTS
Any monitoring (including groundwater, surface water, soil or plant tissue
analyses) deemed necessary by the Division of Environmental Management to
insure surface and ground water protection will be established and an acceptable
sampling reporting schedule shall be followed.
2. Adequate records shall be maintained by the Permittee tracking the amount of wastewater
disposed. These records shall include, but are not necessarily limited to the following
information:
a) date of irrigation,
b) volume of wastewater irrigated,
c) length of time fields are irrigated,
d) continuous weekly, monthly, and year-to-date hydraulic (inches/acre) loadings
for each field,
e) weather conditions, and
f) maintenance of cover crops.
3. The effluent from the subject facilities shall be monitored by the Permittee at the point
prior to irrigation every month for the following parameters:
Parameter
TSS
pH
Volatile Organic Compounds - (by Method I or Method 2 below)
Method 1: Method 6230D ( Capillary - Column), "Standard Methods for the
Examination of Water and Wastewater", 17th edition, 1989
Method 2: Method 502.2 " Methods for the Determination of Organic Compounds in
Drinking Water", United States Environmental Protection Agency -
600/4-88/039
4. Three copies of all operation and disposal records (as specified in condition III 2) and
all effluent monitoring data (as specified in condition 1113) and any other data as may be
required shall be submitted on or before the last day of the following month to the
following address:
NC Division of Environmental Management
Water Quality Section
Facility Assessment Unit
PO Box 27687
Raleigh, NC 27611-7687
5.Noncompliance Notification:
The Permittee shall report by telephone to the Winston-Salem Regional Office,
telephone no. [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:
J

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 sludge digester; 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 render the facility
incapable of adequate wastewater treatment such as mechanical or electrical failures
of pumps, aerators, compressors, etc.
Any failure of a pumping station, sewer line, or treatment facility resulting in a
by-pass directly to receiving waters without treatment of all or any portion of the
influent to such station or facility.
d. Any time that self-monitoring information indicates that the facility has gone out of
compliance with its permit limitations.
Persons reporting such occurrences by telephone shall also file a written report in letter
form within 15 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.
IV. GROUNDWATERREUUIREMENTS
Prior to beginning waste disposal operations, two (2) monitor wells (indicated as
MW -16 and MW -17 in the application package) shall be installed to monitor
groundwater quality. The well(s) 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. However, the exact location and construction details for these wells
shall be approved by the Winston-Salem Regional Office, from which a well
construction permit must be obtained.
2. The monitor wells must be sampled initially after construction (and prior to waste
disposal operations) and thereafter every month for the following parameters:
TOC
pH ( 6.5-8.5 standard units)
Water Level
Total Suspended Solids
bis (2-Ethylhexal) phthalate (EPA Method 606)
Di-n-butylpthalate (EPA Method 606)
Volatile Organic Compounds - (by Method 1 or Method 2 below)
Method 1: Method 6230D ( Capillary - Column), "Standard Methods for
the Examination of Water and Wastewater", 17th edition, 1989
Method 2: Method 502.2 " Methods for the Determination of Organic
Compounds in Drinking Water", United States Environmental
Protection Agency - 600/4-88/039
The measurement of water level must be made prior to sampling for the remaining
parameters.
The measuring points (top of well casing) of all monitoring wells shall be
surveyed relative to mean sea level (M.S.L.). The depth of the water in each well
shall be measured from the surveyed point on the top of the casing. The water level
elevations shall then be determined relative to mean sea level (M.S.L.).
0

The numbers in parentheses represent the maximum allowable concentrations in
groundwater for the various analytical parameters, as specified in 15 NCAC 2L
[Groundwater Classifications and Standards]. Unless otherwise noted, the
concentrations are given in parts per million.
If TOC concentrations greater than 10 mg/l 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/1, 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, or the equivalent
method 502.2, then EPA methods 604 and 611 must also be run to detect other
organic compounds which may be present. The results of all analysis specified in
the monitoring requirements, including 604 and 611 if required, must be submitted
simultaneously.
The results of the sampling and analysis shall be sent to the N.C. Division of
Environmental Management on Form GW -59 (Compliance Monitoring Report
Form) every month following the sampling month.
3. The Compliance Boundaa, delineated on the attached site map, for the disposal
system is specified by regulations in 15 NCAC 2L, Classifications and Water
Quality Standards applicable to the groundwater of North Carolina. An exceedance
of Groundwater Quality Standards beyond the Compliance Boundary is subject to
penalty provisions applicable under General Statute 143-215.6(1)a. The sale of
property, by the Permittee, which is within or contiguous to the disposal system site
may alter location of the Compliance Boundary.
For facilities permitted on or after December 30, 1983, the Compliance Boundary is
established at the lesser of 250 feet from the spray irrigation field, or 50 feet within
the property boundary.
If the title to any property which may affect the location of the Compliance Boundary
is changed, the permittee shall notify the Division Director within 14 days. The
Director shall then establish a modified Compliance Boundary which will be done as
a modification to the Permit.
The REVIEW BOUNDARY, delineated on the attached site map, for the disposal
system is specified by regulations in 15 NCAC 2L, Groundwater Classifications
and Standards. A REVIEW BOUNDARY is established around disposal systems
midway between the Compliance Boundary and the perimeter of the waste disposal
area. When the concentration of any substance equals or exceeds the maximum
allowable concentration of that substance at the REVIEW BOUNDARY, as
determined by monitoring, the permittee shall either (i) demonstrate, through
predictive calculations or modeling, that natural site conditions, facility design and
operational controls will prevent a violation of standards at the Compliance
Boundary; or, (ii) submit a plan for the alteration of existing site conditions, facility
design or operational controls that will prevent a violation of standards at the
Compliance Boundary, and implement that plan upon its approval by the Director.
4. Any additional groundwater quality monitoring, as deemed necessary by the
Division, shall be provided.
5

V. INCTJONS
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 keep 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 upon request to the Division of Environmental Management or other permitting
authority.
3. Any duly authorized officer, employee, or representative of the Division of
Environmental Management may, upon presentation of credentials, enter and inspect
any property, premises or place on or related to the disposal site and facility at any
reasonable time for the purpose of determining compliance with this permit; may inspect
or copy any records that must be kept under the terms and conditions of this permit; or
may obtain samples of groundwater, surface water, or leachate.
V1. QENERAL CONDITIONS
1. This permit shall become voidable unless the facilities are constructed in accordance with
the conditions of this permit, the approved plans, specifications, and other supporting
data.
2. This permit is effective only with respect to the nature a --rd 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 Environmental Management 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. Failure to abide by the conditions and limitations contained in this permit may subject the
Perrnittee to an enforcement action by the Division of Environmental Management in
accordance with North Carolina General Statute 143-215.6.
5. 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.
Prior to any transfer of this land, a notice shall be given to the new owner that gives full
details of the materials applied at this site.
7. A set of approved plans and specifications for the subject project must be retained by the
.Permittee for the life of the project.
The annual administering and compliance fee must be paid by the Permittee within thirty
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 15 NCAC 2H .0205
(c)(4).
0

9. Upon completion of the dewatering of the lagoon, the Winston-Salem Regional Water
Quality Supervisor shall be contacted at [phone] so that a inspection can be made
of the lagoon and a determination made as to the final disposal of the sludge.
10. Upon removal of the lagoon sludge from the lagoon, the Winston-Salem Regional Water
Quality Supervisor shall be contacted at [phone] so that a final abandonment
inspection can be made of the facility.
11. Written approval must be received from the Winston-Salem Regional Supervisor for the
final disposal of the lagoon sludge.
Permit issued this the 19th day of March, 1991
RTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
George T. Evere , Dire r
Division of Envi anagement
By Authority of the Environmental Management Commission
Permit No. WQ0003941
7

Permit No. WQ0003941
-March 19, 1991
Engineer's Certification
1, , 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, p for the
Project Name Location
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 the approved plans and specifications.
Signature Registration No.
Date
A

I

N ISCELLANECUS UNITS CONTINUED)
POINTS
(c) holding Pond for Effluent Flow Equalization and/or.
Stage Discharge
(d) Effluent Pumps 5
(e) !n -Plant Pumps (including air lifts},. . . .
(f) Stand -By Power Supply . . , . . . . .
(g) Thermal POIIUtIon Control QzvicC , , . . . .
{h) Trea[nrn3
t Processes for Ren]oval of Metal or Cyanide and
other Toxic Materials . , . . . . , , . , 30
Total Points
S
CLASSIFICATION
lass . . . . . . . . . . . . . . 5 - 25 Points
ss 1! . . . . . . . . 26 - 50 Points
Clss; I"! . 51 - 65 Points
Cla:s
JY . . . . . . . . . . . . . . . GG - Up Paint-
Faciii tics ha vi rig a rating or anc through fuvr points, fnc1 us ive,
da nuL requIrc a certified operator. Classification or all other
f�Cillties requires a Comparable grade operator in responsible char9c.
North Carolina
Division of Envirorrrr:ntal Management
Checklist of Facility Components
To be Used In Oetermin9 Facility Classification
All information wil} be printed:
Naine of Plant L`?Dg 1
County
Odncr or contact Pr.r-son
NO ) Ing Address r � f� ,-rC1'1yILLE 7phQo._
Street or P.O. Dox No. cwn cm, City Zi
p
Permit Number Informacion Construction 5t4tus
dPDE5 Permit t"o. -- Pl^ase Check:
Date Issued Exlst$ng Facility
Upgraded Par.iIIty
SLutr: PeruilL No, ��j � Ncti+ Fa elllty
fr Upgraded or Nc+ Facility, I;SYc:
Date Issued Hqa k 501 ComPlction Oatc
�{ 100.' Completion Oatc n O
Rated by �Ar�l( Regional offfcc C'�(rr(1� pate 12- ML q t
Operator in Responsible Charge
Gradc _
Design Flow of Plant in GPD Z j'
Plant Class �_�
ITEM
P01NT5
{1)
(2)
PRETREATMENT UNITS (sec definition Ifo. 04)
DESIGN
2
FLOH OF PLANT IN GPO {not applicable to �]on -
contaminated cooling waters and non -discharging systems
0 -- 20 , 000 . . _ . . .
. . . . .
20,DD1 -- 501000 . . . . . . . . .2
. . .
1
. .
50,001 -- 100,000 . .
' . . . . . .
3
. . . . . '
100,001 -- 250,000 . . . . . . . .
. . . . .
250.001 -- 500,000 . . . .
. . . . . . . . . . .
500,001 -- 1,000,000 .
1,000,001 -- 2,000,000 . . . . . . . • ' ' '
5
8
2,000,001 and u ' ' ' ' ' • • 10
( p) - rate 1 point additional for each 200,000''
GPD capacl y up to a
}q�
(3)
rnaxlmm of .
Design Flow (GPO): (p 3] Z1
PRELIMINARY OMIT$(5
30
, i
cc de nit on No. 3
(a) "'Fluent Pwrsp;
On, IIWd ng air Ifrt)
(!o} bar
Screen ; . . . . . . . . . .
or '
I
(t:) tdr.r.hanlral .i r. rr'n+':, ;I,a ,i ; ".,; 1'I'1'!i: lll pl n+l
l I!I' col: rIIIll
s
��
(dJ crri C Nrniwva}r . . . . . . . . .
C I{.0 .
�
(e) Mechanical or Aerated GrIt Removal
(f) Flow Measuring Device or . . .
(9) lrnstrumentcd Flow llrasuremcnt
.Live
�]

(4)
(5)
(6)
ITEM
PO I HTS
(h)
Preaeration or Equalization . . . . . . . . .
1
{S)
Grca;c or. Oil Separators -- fray ity . . . . . .
2
Land Application {Sr.r delini(ion Iia. Z3h) . . .
mechanicaI . . . . . . .
3
Aerated . . . . . . .
5
(j)
Chemical Conditioning . . . . . . . . . . . . . .
1')
PRIMARY
TREATMEHT Unl TS
(I:)
( a )
S.apLlc T,,nr (;Ce dcrinition No. 44}
Z
(b)
Imhoff Tank . . . . . . . . . . . . . . . .
3
(c)
Primary Ciarifiers (fncluding sludge air lifts) . .
5
(d)
Settling Ponds or Settling Tanks for Inorganic Non -
(in)
I'ost Acro Lfoll - [J yr.a Se . . . . . .
Toxic Materials Involving a 0ischharge to the Surface
Waters (sand, gravel, stone, and other mining operations
5
except recreat,onal activities such as gem or gold
Pre -Package Unit for Rcrm val of 0i1 and Grease
30
nining) . . . . . . . . . . . . . . . . . . . ..
10
SECONDARY TREAT4ENT UNITS
5
(a)
Carbonaceous Stage.
Sand or Mixed -Media Filters -- Lax Rate . . . . . .
2
(i) Aeration - Hlgh Purity Oxygen Sys ten, , . . .
20
High Rate
Diffused Air System . . .
10
SLUDGE
liechan,ic,a' Air Systwn (fixed, rloaLing or rotor)
a
Separate Grudge Reaeration
3
_0
(ii} Trickling Fflter - Iligh Ratc . . . . .
7
Aerobic . . . . . . . .
Standard Rate . . . . . .
I'a i, l,rd Inwrr -
I
(ili} Aerated LLguons . . . .
10
10
(Iv) Rata Ling dlologlcal Con UC Lors (biodisc).
l0
51udge Drying fleck . . . . . . . . . . . . . . .
(v) Sand Filters (Intermlttent hi0109ieai}
2
(vi SlalriIfZa:fon Lagoon'-
(vll� Clarfftcr (including ,ludtie air Ilfls}.
5
(b}
Ilitr;genous Stege
(f)
Sludge III icl,encr . . . . . . . . . . . .
(i} Aeration Illgh Puri Ly Oxygen Sys Lem. . . . .
20
g)
Olffu;cd Air Systems. . . - -
10
HcchanicaI Air System {fined, floating, or I-ot060
Sludge. Iluldirnq La rrl: -- Acratcd . . . . . . -
5
Separate Sludge Reaeration . . . . . . . .
3
Nor- aerated
{SS) Trickling I'll ter - high' Rate . . . . . . . .
7
{1}
Standard Rate . . . . . .
5
Packcd Tower. . .
5
.(iil)
Rotating Biological Contactors (biodisc)
10
vaeuurM1 FIILer. Ccntr;fugc or Filler Cress
(Iv) Sand F1ILer (intermittent biological). . ...
2
SLUDGE DISPOSAL (including incinerated ash)
(v) Clarlfler (including slvdgc air lifts) . . .
5
TERTIARY OR ADVANCEO TREATMEHT UNITS
Lagoons . . . . . . . . .
(a)
Activated Carbon Beds - without Carbon regeneration
5
Land AlypllcaLinn (:ur'filcc and ;ub:urrdcc) (,cc def.
With Carbon regeneration-
15
(b)
Powdered or Granular Activated Carbon Feed - Without
10
Carbon regeneration
5
5
With Carbon regeneration.
15
(c)
t rponia Stripping . . . . . . . . . . . . . . .
10
(d)
Chtmical Additions . . . . . . . . . . .
5
(e)
Denllrtflcation Process (separate process). . . .
10
(f)
E'.ectroditlysis . . . . . . . . . . • . • • • • .
5
(g)
Foam Separation . . . . . . . . . . . . . . . . .
5
(h)
Ion Exchange. -
5
ITEM
POIHTS
(i)
Land Application {Sr.r delini(ion Iia. Z3h) . . .
Q
(nut afopI;cable far r:u'.iIILicS under i0(,}) . .
(j}
MIcroscreens . . . . . . . . . . . . . . . . . .
5
(I:)
Phosphorus Removal . . . . . . . . . . . . . . . .
20
{1)
Polishing ponds- without aeration , . .
2
WI Us oeration . . . . . . . .
5
(in)
I'ost Acro Lfoll - [J yr.a Se . . . . . .
U
Diffused or licchanica1
5
(n)
Pre -Package Unit for Rcrm val of 0i1 and Grease
30
(o)
Reverse Osmosis . . . . . . . . . . . . .
5
(p)
Sand or Mixed -Media Filters -- Lax Rate . . . . . .
2
High Rate
5
(7)
SLUDGE
TREATMENT
(a)
51udge Digestion Tani: - Pleated . . . . . . . . . .
_0
Aerobic . . . . . . . .
5
Unheated . . . . . .
I
(b)
Sludge Stabilization {chemical or thermal) . .
10
(c)
51udge Drying fleck . . . . . . . . . . . . . . .
2
Sludge CI ii LrIaLlofl
�tf)
e)
51udge Conditioner (chemlcal or UiCnnaI
5
(f)
Sludge III icl,encr . . . . . . . . . . . .
2
g)
Sludgc Gas UtiIi>a[ion (ineludinq gas atoragcl
2
Ip}
Sludge. Iluldirnq La rrl: -- Acratcd . . . . . . -
5
Nor- aerated
{1}
Sludge Incinerator- {not including d eluded tar-Uon
rcgencrallon} . . . . -
!0
{j}
vaeuurM1 FIILer. Ccntr;fugc or Filler Cress
1J
{O)
SLUDGE DISPOSAL (including incinerated ash)
( a )
Lagoons . . . . . . . . .
2
(h)
Land AlypllcaLinn (:ur'filcc and ;ub:urrdcc) (,cc def.
Z7a }
10
{c)
Landfilled (burial) . . . . . . . . . . . . . . .
5
{g}
DISiNFECTIOV
(a)
Pre . . . . . .
h)
In tornx:dlalc . . . . . . . . . . .
7
(c}
Post . . . . . . . . . . . . . . . . . .
J
(d)
Oechlorination. . . . . . . . . . . . . . .
S
(e)
Chlorine or ozone Generation . . . . . . . . . .
5
(f)
Radiation . . . . . . . . . . . . . . . . . . .
3
(10)
MISCELLANEOUS UNITS
(a)
"Holding Ponds or Ild.lding Tanks for Inorganlc, Non - toxic
Materials With no Discharge to the Surface Haters
Z'
.(Sludge handling facilities far Water purificaLion
plants, sand, gravel, crushed stone and other simlIdr
operations --sec definition Ho. ]0)
(b)
holding Ponds or Ilo]Oing Tanks for Organic or Toxlc
Materials kith no Discharge to the surface Waters
4
(Any pump, valve, or other mechanical control sub!ect
to failure creating a potential for bypass or discharge
from the holding ponds or tanks Will necessitate a
minimum classification of Class I requiring a certified
operator).