NC0075353_Wasteload Allocation_19950105

State of North Carolina
Department of Environment,
Health and Natural Resources
Division of Environmental Management
James B. Hunt, Jr., Governor
Jonathan B. Howes, Secretary
Nann B. Guthrie, Regional Manager
Asheville Regional Office
A144Aof I
M;i
�EHNR
WATER QUALITY SECTION
January 5, 1995
Mr. Clifford Seagle
Rocky Pass Rest Home
Post Office Box 1055
Marion, North Carolina 28752
Subj ect :
Dear Mr. Seagle:
(�-j83D
,u. rvk,avq CV
Additional Effluent Limits
Rocky Pass Rest Home
Wastewater Treatment Facility
NPDES Permit No. NCO075353
McDowell County
Based upon the evaluation of your NPDES Permit application
for continued discharge of wastewater from Rocky Pass Rest Home,
the Technical Support Branch of the Division of Environmental
Management has determined that the addition of a fecal coliform
limit in the permit is necessary in order to protect water
quality in the receiving stream. The limit will be 200 colonies/
100 ml monthly average and 400 colonies/100 ml daily maximum.
Additionally, there will be the requirement for monitoring
for total residual chlorine in the effluent. If you do not have
effluent disinfection facilities available they should be
installed and ready for operation when the new permit becomes
effective.
If you have questions, please call me at 704/251-6208.
Sincerely,
Michael R. Parker
nvironmental Chemist
xc: Technical Services
Interchange Building, 59 Woodfin Place, Asheville, N.C. 28801 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 60% recycled/ 10% post -consumer paper

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Permit No.
iJIREr1ENTS FINAL
O EFFLUENT LIMITATIONS AND MONITORING REQ until expiration, the Perrnittee is authorized to disc
shall be limited and monitored it the permittee as specified below:
D ring the period beginning on the effective date of the permit and lasting
s h discharges,. I ements
u uc Re u r
outfall(s) serial number 00 Monit rtn Lp-
t �m��
Flow
BOD, 5 day, 20"
Total Suspended Residue
NH3 as N
Temperature
n� her mitatlons
M_ c�lv nvg-
0.010 NrI D
30.0 mg1l
30.0 m9/1
Measusemen — Tpe �g�,�L
FreauencY I or E
Dall` Instantaneous
Weekly Grab E
45.0 m9/1 Weekly
45.0 mg/l Meekly
Weekly
Weekly
* sample locations. E - Effluent, I - Influent
The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units and shall be monitored weekly
sample.
ng solids or visible foam in other than trace amounts.
There shall be no discharge of float'
NGor '153 53
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b?�-o8-30
l? e�e�✓e �
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Grab
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SYMBOLS 202G2
IS AVg1LABl.[ ON REQUEST

SOC PRIORITY PROJECT: Yes
IF YES, SOC NUMBER
No X
TO: PERMITS AND ENGINEERING UNIT
WATER QUALITY SECTION
ATTENTION: Charles Alvarez
DATE: August 25, 1994
NPDES STAFF REPORT AND RECOMMENDATION
COUNTY McDowell
PERMIT NUMBER NCO075353
PART I - GENERAL INFORMATION
1
1. Facility and Address: ROCKY PASS REST HOML
POST OFFICE BOX 1055
MARION NC 28752
2. Date of Investigation: January 13, 1994
3. Report Prepared By: Michael R. Parker
4. Persons Contacted and Telephone Number: Clifford Seagle
704-652-6657
5. Directions to Site: From the intersection of I-40 and Highway 226
south of Marion, travel south on Highway 226 approximately 2
miles. The facility is located on Highway 226 just beyond the
point where Highway 226 crosses North Muddy Creek.
6. Discharge Points), List for all discharge points:
Latitude: 350 38' 45" Longitude: 810 56' 24"
Attach a USGS map extract and indicate treatment facility site and
discharge point on map.
U.S.G.S. Quad No. E11NW U.S.G.S. Quad Name MARION EAST, NC
7. Site size and expansion area consistent with application?
X Yes No If No, explain:
8. Topography (relationship to flood plain included): Terraced slope
of approximately 10-12 feet above flood plain.
Page 1

9. Location of nearest dwelling: Approximately 200 feet.
10. Receiving stream or affected surface waters: North Muddy Creek.
a. Classification: C
b. River Basin and Subbasin No.: CTB 030830
C. Describe receiving stream features and pertinent downstream
uses: Wildlife, recreation, agriculture.
PART II - DESCRIPTION OF DISCHARGE AND TREATMENT WORKS
1. a. Volume of wastewater to be permitted 0.01 MGD (Ultimate
Design Capacity)
b. What is the current permitted capacity of the Wastewater
Treatment facility? 0.01 mgd
C. Actual treatment capacity of the current facility (current
design capacity 0.01 mgd.
d. Date(s) and construction activities allowed by previous
Authorizations to Construct issued in the previous two years:
None
e. Please provide a description of existing or substantially
constructed wastewater treatment facilities: Extended
aeration package plant with sludge holding and effluent
disinfection.
f. Please provide a description of proposed wastewater treatment
facilities: NA
g. Possible toxic impacts to surface waters: None known or
expected.
h. Pretreatment Program (POTWs only):
in development approved
should be required not needed X
2. Residuals handling and utilization/disposal scheme: Removal by
pumper truck with ultimate disposal in a municipal WWTP.
a. If residuals are being land applied, please specify DEM
Permit Number
Residuals Contractor
Telephone Number
b. Residuals stabilization: PSRP PFRP OTHER
Page 2

c . Landf ill:
d. Other disposal/utilization scheme (Specify):
3. Treatment plant classification (attach completed rating sheet): II
4. SIC Codes (s) : 8059
Wastewater Code(s) of actual wastewater, not particular facilities
i.e., non -contact cooling water discharge from a metal plating
company would be 14, not 56.
Primary 11 Secondary
Main Treatment Unit Code: 06007
PART III - OTHER PERTINENT INFORMATION
1. Is this facility being constructed with Construction Grant Funds
or are any public monies involved. (municipals only)?
2. Special monitoring or limitations (including toxicity) requests:.
3. Important SOC, JOC, or Compliance Schedule dates: (Please
indicate) N/A
Date
Submission of Plans and Specifications
Begin Construction
Complete Construction
4. Alternative Analysis Evaluation: Has the facility evaluated all
of the non -discharge options available. Please provide regional
perspective for each option evaluated.
Spray Irrigation: Ts to surrounding homes.
Connection to Regional Sewer System: Approximately 1 mile and will
need pump station.
Subsurface: There is not sufficient property to install a ground
adsorption system.
Other disposal options:
5. Other Special Items:

PART IV - EVALUATION AND RECOMMENDATIONS
Mr. Clifford Seagel has requested renewal of NPDES Permit
No.NC00753535 for the operation of a 0.010 MGD extended aeration
wastewater treatment facility. Limits for fecal coliform should
be included in the permit; disinfection facilities are in place
and there should be no problem in complying with the permit
limits.
It is recommended that the permit be issued.
AV Y
Report Yreparer
nal Supervisor
Date

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RATING SCALE FOR CLASSIFICATION OF WATER POLLUTION CONTROL SYSTEMS
Name of Facility:�-
Owner or Contact Person: vox-.L �a
Mailing Address: f x —.S~ •G• 71-0,
County: /i%0oTelephone:
Present Classification: e-&-y-3 New Facility Existing Facility
NPDES Per. No. NC00 75"3 d -3 Nondisc. Per. No.WQ Health Dept.Per No.
Rated by: /0K 14e- Al--. Telephone: Date,,'
Date, ,'
Reviewed by: Health Dept. Telephone:
Regional Office Telephone: boy- ge7-G zog-
Central Office Telephone:
ORC:
Check Classification(s):
Wastewater Classification:
Grade: Telephone:
Subsurface Spray Irrigation _ Land Application
(Circle One) I III IV Total Points: 27
SUBSURFACE CLASSIFICATION
(check all units that apply)
1. septic tanks
2. pump tanks
3. _siphon or pump -dosing systems
4. sand filters
5. grease trap/interceptor
6. ___oil/water separators
7. _ gravity subsurface treatment and disposal:
8. pressure subsurface treatment and disposal:
SPRAY IRRIGATKA CLASSIFICATION
(check
all units that apply)
1.
preliminary treatment (definition no. 32 )
2.
lagoons
3.
septic tanks
4.
pump tanks
5.
pumps
6.
sand filters
7.__grease
trapfinterceptor
8.
oil/water separators
9.
disinfection
10.
chemical addition for nutrient/algae control
11.
spray Irrigation of wastewater
In addition to the above classifications, pretreatment of wastewater In excess of these components shall
be rated using the point rating system and will require an operator with an appropriate dual certification.
LAND APPLICATION/RESIDUALS CLASSIFICATION (Applies only to permit holder)
1. Land application of biosolids, residuals or contaminated soils on a designated site.
WASTEWATER TREATMENT FACILITY CLASSIFICATION
The following systems shall be assigned a Class I classification, unless the flow is of a significant quantity or the technology is unusually
complex, to require consideration by the Commission on a case -by -case basis: (Check if Appropriate)
consisting only of physical separation. pumps and disr-nl'
2. Septic TanWSand Fitter Systems consisting only of septic tanks, dosing apparatus, puniN�>.swnd litters,
and direct discharge;
3. Lagoon Systems consisting only of preliminary treatment, lagoons, pumps, disinfection, necessary chemical treatment for
algae or nutrient control, and direct discharge;
4. Closed -loop Recycle Systems;
5. Groundwater Remediation Systems consisting only of oil/water separators, pumps, air -stripping, carbon adsorption, disinfection
and disposal;
6. Aquaculture operations with discharge to surface waters;
7. Water Plant sludge handling and back -wash water treatment;
8. Seafood processing consisting of screening and disposal.
9. Single-family discharging systems, with the exception of Aerobic Treatment Units, will be classified if permitted after July 1,
1993 or if upon inspection by the Division, it is found that the system is not being adequately operated or maintained. Such
systems will be notified of the classification or reclassification by the Commission, in writing.

The following scale is used for rating wastewater treatment facilities: (circle appropriate points)
REM POINTS
(1) Industrial Pretreatment Units or Industrial Pretreatment Program (see definition No. 33)...................................................4
(2) DESIGN FLOW OF PLANT iN gpd [not applicable to non -contaminated cooling waters,
sludge handling facilities for
water purification plants, totally closed cycle systems(see definhlon No..11). and'f_acilhies consisting only of hem
(4)(d) or Items , and (11)(d)J
20,00....
20.001 - 50.000........................................................................... ..........................
... 12
50.001 - 100.000..................................................................................................................................3
100.001 - 250.000..............................................................................................................................A
250.001 - 500.000................................................................................................................................5
500,001 - 1.000.000.............................................:.................................................................................8
1.000.001 - 2.000.000........................................................................................................ ...............10
2.0013.001 (and up) rate 1polnt additional for each 200.000_gpd capacity, up to a maximum of .................30
Design Flow (gpd)
(3) PRELIMINARY UNITSIPROCESSES (see definition No.32)
(a) Bar Screens.........................................................................................................................................
or
(b) Mechanical Screens. Static Screens or Comminuting Devices..........................................................................2
(c) Grit Removal..............................................................................................................................................1
or
(d) Mechanical or Aerated Grit Removal.............................................................................................................2
(e } Flow Measuring Device................................................................................................................................1
or
(f ) Instrumented Flow Measurement................................................................................................................2
(g) Preaeratlon............................................................................................................................................... 2
(h) Influent Flow Equalization........................................................................................................................2
(i} Grease or Oil Separators �Gravity.................................................................................................................2
Mechanical...............................................................................................................................................3
DissolvedAir Fknatfon................................................................................................................................8
(�) Prechlorination.........................................................................................................................................5
(4) PRIMARY TREATMENT UNiTSIPROCESSES
(a) Septic Tank (see definition No. 43)...........................................................................................................2
(b) Imhoff Tank..............................................................................................................................................5
(c) Primary Claritlers..........................................................................................................................................5
(d) Settling Ponds or Settling Tanks for Inorganic Non -toxic Materials (sludge handling facilities for water
purification plants. sand, gravel. stone, and other mining operations except recreational activities such as gem
orgold mining)........................................................................................................................................2
(5) SECONDARY TREATMENT UNi WRGCESSES
(a) Carbonaceous Stage
(i) Aeration -High Purity Oxygen System...........................................................................
Diffused Air System. �
... .................................................................. 1
Mechanical Air System (fixed. floating or rotor).....................................r..........................8
SeparateSludge Reaeration...:........................................................................................3
(il) Trickling Filter
HighRate.......................................................................................................................7
StandardRate................................................................................................................5
PackedTower............ ......................... .............................................................5
Biological Aerated Finer or Aerated Biological Filter............................................................10
(iv) Aerated Lagoons.....................................................................................................10
(v) Rotating Biological Contactors....................................................................................10
(vi) Sand Filters -intermittent biological..................................................................................2
Recirculatingbiological.....................................................................................................3
(vil) Stabilization Lagoons.................................................................................................
(viii) Clarffisr..................................... .......................................................:...................
(ix) Single stage system for combined carbonaceous removal of BOD and nitrogenous removal by
nitrification (see definition No. 12)(Points for this hem have to be in addition to hems
(5)(a)(i) through (5)(a)(viii).
utilizing the extended aeration process (see definition No.3a)..........................................2
utilizing other than the extended aeration process............................................................8
(x) Nutrient additions to enhance BOD removal......................................................................5
(xi) Biological Culture ('Super Bugs')addition........................................................................5
(b) Nitrogenous Stage
(I) Aeration - High Purity Oxygen System.............................................................................20
DiffusedAir System.................................................................................................10
Mechanical Air System (fixed, floating or rotor)..................................................................8
SeparateSludge Reaeratlon.............................................................................................3
(II) Trickling Filter -High Rate...................................................................................................7
StandardRate...............................................................................................................5
PackedTower.................................................................................................................5
Biological Aerated Fitter or Aerated Biological Finer.............................................................10
(Iv) Rotating Biological Contactors.................................................................................10
(v) Sand Finer - Intermittent biological..................................................................................2
Recirculatingbiological....................................................................................................3
(vi) Clarifier.........................................................................................................................5
(6) TERTIARY OR ADVANCED TREATMENT UNITVPROCESSES
(a) Activated Carbon Beds -
whhoutcarbon regeneration...................................................................................................5
with carbon regeneration.......................................................................................................15
(b) Powdered or Granular Activated Carbon Feed -
withoutcarbon regeneration.................................................................................................5
.vhh carbon regeneration.....................................................................................................15
(c) Air stripping..............................................................................................................................................6
(d) Derthrification Process..............................................................................................................................10
(s) Electrodialysis............................................................................................................................................5
(t) Foam Separation.......................................................................................................................................5
(g) Ion Exchange............................................................................................................................................5
(h) Land Application of Treated Effluent (see definition No. 22b) (not applicable for sand. gravel. stone
and other similar mining operations) by high rate Infiltration..........................................................................4
(i) Microscreens..............................................................................................................................................5
(�) Phosphorous Removal by Biological Processes (See definition No. 26)........................................................20
(k) Polishing Ponds - without aeration..............._............................................................................................2
withaeration.................................................................................................................5

(1)
Post Aeration - cascade..............................................................................................................................0
c
diffused or mechanical........................................................................................................2
'
(m)
Reverse Osmosis ................
(n)
Sand or Mixed -Media Filters - low rate........................................................................................................
highrate....................................................................5
(o)
Treatment processes for removal of metal or cyanide........................................................................i 5
5
(p)
treatment processes for removal of toxic materials other than metal or cyanide ..........................................1
(7)
Sl) OGETR Sludge
(aDigestion Tank - Heated (anaerobic)..............................................................................................10
Aerobic..........................................................................................................................................5
Unheated(anaerobic)................................................................................. ....3
(b)
Sludge Stabilization (chemical or thermal)...................................................................................................
2
(c)
Sludge Drying Beds - Gravity.......................................................................................................................
VacuumAssisted.....................................................................................................................................5
(d)
Sludge Eluldation.....................................................................................................................................
(e)
Sludge Conditioner (chemical or thermal)...................................................................................................5
(t)
(g)
Sludge Thickener (gravity).....................................................................................................• ................
Dissolved Air Flotation Unit [not applicable to a unit rated as (3)(1)).......................................... .... ... .2
(h)
Sludge Gas Utilization (includingas storage) ............••• •"
(I)
Sludge Holding Tank - Aerated...............................................................................................................
(J)
Non -aerated ..........................................................................................................................................:10
Sludge Incinerator (not Including activated carbon regeneration)..............................................10
(k)
Vacuum Filter, Centrifuge. or Filter Press or other similar dewatering devices ...................................................
(8)
RESIDUALS UTILIZATIOWDISPOSAL (including Incinerated ash)
(a)
(b)
Lagoons...............................................................................-..................................................................2
Land Application (surface and subsurface) (see definition 22a)
or landfill operator who holds the land application permit
by contracting to a land application operator
(c)
orlandfill permit.........................................................................................................5
Dedicated Landfill(burlal) by the permittee of the wastewater treatment facility ..........................................
(9)
DISINFECTICN
Chlorination
(a)
......................................................................................................................
(b)
Dechlodnation.............................................................................................................................................................
(c)
Ozone.............................................................................................................................
(10)
(d) Radiation..................................................................................................................................................5
CHEMICAL ADDITION SYSTEM(S) ( see definhion No. 9) (not applicable to chemical additions rated as hem (3)(1).
(5)(a)(xf).
(6)(a). (6)(b). (7)(b). (7)(o). (9a), (9)(b) or (9)(c) 5 points each:
Ust....................................................................................................................................5
.
(11)
..................................................................................................................................5
MiSC6IANEOUS UNITWPROCESSES�
(a) Holding Ponds, Holding Tanks or Settling Ponds for Organic or Toxic Materials including wastes from mining
operations containing nitrogen or phosphorus compounds In amounts significantly greater than is common
.
(b)
fordomestic wastewater............................................................................... .........................
Effluent Flow Equalization (not applicable to storage basins which are inherent In land application systems).....2
(c)
Stage Discharge (not applicable to storage basins Inhererd in land application systems)..................................5
(d)
Pumps .....................................................................................................................................................3
(e)
Stand-Power Supply ....evic..........................................................................................................
Thermal Pollution Control Device
Thermal
(f)
...........................................................................................
.......
TOTAL POINTS ............................. .......... ..
C 4,SSIFiCATiON
Class1...........................................................................................................5-25 Points
Class11.........................................................................................................26-50 Points
Classia........................................................................................................ 51-65 Points
ClassIV...............................................................................................,,,,,,,, 66.Up Points
----------------------------------------------------
Facilities having a rating of one through four points. Inclusive, do not require a certified operator.
Facilities having an activated sludge process wig be assigned a minimum classification of Class II.
Facilities having treatment processes for the removal of metal or cyanide will be assigned a minimum classification of Class 11.
Facilities having treatment processes for the biological removal of phosphorus will be assigned a minimum classification of Class III.
MU DEFINITIONS
The following definitions shall apply throughout this Subchapter.
(1) Activated Carbon Beds. A physical/chemical method for reducing soluble organic material from wastewater effluent; The column -type beds used In this
method will have a flow rate varying from two to eight gallons per minute per square foot and may be either upflow or downflow carbon beds. Carbon may or
may not be regenerated on the wastewater trea*. -+nrc :;cant si!9:
(2) Aerated Lagoons. A basin in which all solids are maintained in susin .,it>- . � �y Nnich biological oxidation or organic matter is reduced through artificially
accelerated transfer of oxygen on a flow -through basis;
(3) Aeration. A process of bringing about Intlmate contact between air or high purity oxygen In a liquid by spraying, agitation or diffusion;(3a) Extended
Aeration. An activated sludge process utilizing a minimum hydraulic detention time of 18 hours.
(4) Agriculturally managed she. Any she on which a crop Is produced, managed, and harvested (Crop includes grasses, grains. trees, etc.);
(5) Air Stripping. A process by which the ammonium Ion Is first converted to dissolved ammonia (pH adjustment) with the ammonia then released to the
atmosphere by physical means; or other similar processes which remove petroleum products such as benzene, toluene, and xylene;
(6) Carbon Regeneratlon. The regeneration of exhausted carbon by the use of a fumace to provide extremely high temperatures which volatilize and oxidize the
absorbed Impurities;
(7) Carbonaceous Stage. A stage of wastewater treatment designed to achieve 'secondary' effluent limits;
liquids of different
(8) Centrifuge. A mechanical device In which centrifugal force Is used to separate solids from liquids or to separate rent densi;ias;
(9) Chemical Addition Systems- The addition of chemlcal(s) to wastewater at an application point for purposes of Improving solids removal pH adjustment,
alkalinity control, etc.; the capability to experiment with different chemicals and different application points to achieve a specific result will be considered one
system; the capability to add chemical(s) to dual units will be rated as one system; capability to add a chemical at a different application points for different
purposes will result In the systems being rated as separate systems;
(10) Chemical Sludge Conditioning. The addition of a chemical compound such as lime, ferric chloride, or a polymer to wet sludge to coalesce the mass prior to
its application to a dewatering device;
(11) Closed Cycle Systems. Use of holding ponds or holding tanks for containment of wastewater containing inorganic, non -toxic materials from sand. gravel,
crushed stone or other similar operations. Such systems shall carry a maximum of two points regardless of pumping facilities or any other appurtenances;
(12) Combined Removal of Carbonaceous BOD and Nitrogenous Removal by Nitrification- A single stage system required to achieve permit effluent limits on BOD
and ammonia nitrogen within the same biological reactor,
(13) Dechlodnatlon. The partial or complete reduction of residual chlorine in a liquid by any chemical or physical process;
(14) Denitrificatlon Process. The conversion of nhrate-nhrogen to nitrogen gas;

(15) Electrodialysis. Process for removing Ionized sags from water through the use of Ion -selective Ion -exchange membranes;
(16) Filter Press. A process operated mechanically for partially dewatering sludge;
(17) Foam Separation. The planned frothing of wastewater or wastewater effluent as a means of removing excessive amounts of detergent materials through
the Introduction of air In the form of fine. bubbles; also called foam fractionation;
(18) Grit Removal. The process of removing grk and other heavy mineral matter from wastewater;
(19) Imhoff Tank A deep two story wastewater tank consisting of an upper sedimentation chamber and a lower sludge digestion chamber.
(20) Instrumented Flow Measurement. A device which Indicates and records rate of flow;
(21) Ion Exchange. A chemical process In which Ions from two differerd molecules are exchanged;
(22) land application:
(a) Sludge Disposal. A final sludge disposal method by which wet sludge may. be applied to land either by spraying on the surface or by subsurface Injection
(I.e.. chisel plow); [not applicable for types of sludge described In (11) of this Rule];
(b) Treated Effluent. The process of spraying treated wastewater onto a land area or other methods of application of wastewater onto a land area as a
means of final disposal or treatment;
(23) Microscreem A low speed, continuously back -washed, rotating drum filter operating under gravity conditions as a polishing method for removing
suspended solids from effluent;
(24) Nitrification Process. The biochemical conversion of unoxidized nitrogen (ammonia and organic nitrogen) to oxidized nitrogen (usually nitrate);
(25) Nitrogenous Stage. A separate stage of wastewater treatment designed for the specific purpose of converting ammonia nitrogen to nitrate nitrogen;
(26) Phosphate Removal. Biological. The removal of phosphorus from wastewater by an oxidanoxic process designed to enhance luxury uptake of phosphorus
by the microorganisms;
(27) Polishing Pond. A holding pond following secondary treatment with sufflclerd detention time to allow settling of finely suspended solids;
(28) Post Aeration. Aeration following conventional secondary treatment units to Increase effluent D.O. or for any other purpose;
(29) Post Aeration. (Cascade) A polishing method by which dissolved oxygen Is added to the effluent by a nonmechanical. gravity means of flowing down a
series of steps or weirs; The flow occurring across the steps or weirs moves In a fairly thin layer and the operation of the cascade requires no operator
adjustment; thus. zero points are assigned even though this Is an essential step to meeting the limits of the discharge permit;
(30) Powdered to Granular Activated Carbon Feed. A biophysical cerbon process that utilizes biological activity and organic absorption by using powdered or
granular activated carbon; Virgin or regenerated carbon Is food controlled Into the system;
(31) Preaeration. A tank constructed to provide aeration prior to primary treatment;
(32) Preliminary Units. Unit operations In the treatment process. such as screening and comminution. that prepare the liquor for subsequent major operations;
(33) Industrial Pretreatment.
(a) Pre-treatment Unit, Industrial. The conditioning of a waste at its source before discharge, to remove or to neutralize substances injurious to sewers and
treatment processes or to effect a partial reduction In load on the treatment process which Is operated by the same governing body as the wastewater
treatment plant being rated;
b) Pre-treatment Program. Industrial - must be -a State or EPA required program to receive points on the rating sheet;
(34) Primary Clarifiers. The first settling tanks through which wastewater Is passed in a treatment works for the purpose of removing settleable and suspended
solids and BOD which Is associated with the solids;
(35) Pumps. All Influent. effluent and In -plant pumps;
(36) Radiation. Disinfection or sterilization process utilizing devices emitting ultraviolet or gamma rays;
(37) Reverse Osmosis. A treatment process in which a heavy contaminated liquid Is pressurized through a membrane forming nearly pure liquid free from
suspended solids;
(38) Rotating Biological Contractors. A fixed biological growth process In which wastewater flows through tanks In which a series of partially submerged circular
surfaces are rotated;
(39) Sand Filters:
(a) Intermittent Biological. Filtration of effluent following septic tanks. lagoons. or some other treatment process In which further blodecomposblon is
expected to produce desired effluents; Hydraulic loading rates on these fibers are computed In gpd/ac and have a resulting low gpm/sf (less than one);
b) Recirculating biological - the same type of sand fiber as defined In Subparagraph (39) (a) of this Rule with the added capability to recycle effluent back
through the sand fiber,
(40) Sand or Mixed -Media Fibers. A polishing process by which effluent limbs are achieved through a further reduction of suspended solids;
(a) low rate — gravity. hydraulically loaded fiber with loading rates In the one to three gpm/sf range;
(b) high rate — a pressure, hydraulically loaded fiber with loading rates In the five gpm/sf range; At arty rate, the loading rate will exceed three gprrVst;
(41) Secondary Clarifiers. A tank which follows the biological unit of treatment plant and which has the purpose of removing sludges associated with the
biological treatment units;
(42) Separate Sludge Reaeration. A part of the contact stabilization process where the activated sludge Is transferred to a tank and aerated before returning it
to the contact basin;
(43) Septic Tank A single -story settling tank In which settled sludge Is In contact with the wastewater flowing through the tank; shall not be applicable for
septic tank systems serving single family residences having capacity of 2,000 gallons or less which discharge to a nitrification field;
(44) Sludge Digestion. The process by which organic or volatile matter and sludge Is gasified, liquefied. mineralized or converted into more stable organic matter
through the activity of hiving organisms. which Includes aerated holding tanks;
(45) Sludge Drying Beds. An area comprising natural or artificial layers of porous materials upon which digested sewage sludge Is dried by drainage and
evaporation;
(46) Sludge Elutriation. A process of sludge conditioning In which certain constituents are removed by successive washings with fresh water or plard effluent;
(47) Sludge Gas ih€Hzatiom The process of using sewage gas for the purpose of heating buildings. driving engines, etc.;
(48) Sludge Holding Tank (Aerated and Nonaerated). A tank utilized for small wastewater treatment plants not containing a digester In which sludge may be
kept fresh. and supernatant withdrawn prior to a drying method (i.e. sludge drying beds); This may be done by adding a small amount of air simply to keep the
sludge fresh, but not necessarily an amount that would be required to achieve stabilization of organic matter. A nonaerated tank would simply be used to
decant sludge prior to dewatenng and would not allow long periods (several days of detention) without resulting odor problems;
(49) Sludge Incinerators. A furnace designed to bum sludge and to remove all moisture and combustible materials and reduce the sludge to a sterile ash;
(50) Sludge Stabilization (Chemical or Thermal). A process to make treated sludge less odorous and putrescible, and to reduce the pathogenic organism
content; This may be done by pH adjustment. chlorine dosing, or by heat treatment;
(51) Sludge Thickener. A type of sedimentation tank In which the sludge Is permitted to settle and thicken through agitation and gravity;
(52) Stabilization Lagoon. A type of oxidation lagoon In which biological oxidation of organic matter is effected by natural transfer of oxygen to the water from
air (not a polishing pond);
(53) Siand-By Power Supply. On site or portable electrical generating equipment;
(54) Static Screens. A stationary screen designed to remove solids, including non -biodegradable particulate (floatable solids, sus{.)unu pa solids and BOD
reduction) from municipal and industrial wastewater treatment systems;
(55) Tertiary Treatment. A stage of treatment following secondary which Is primarily for the purpose of effluent polishing; A settling lagoon or sand or coal fiber
might be employed for this purpose;
(56) Thermal Pollution Control Device. A device providing for the transfer of heat from a fluid flowing In tubes to another fluid outside the tubes, or vice versa;
or other means of regulating liquid temperatures;
(57) Thermal Sludge Conditioner. A conditioning process by which heat Is added for a protracted period of time to Improve the dewaterabliby of sludge by the
solubilizing and hydraulizing of the smaller and more highly hydrated sludge particles;
(58) Toxic Materials. Those wastes or combinations of wastes. Including disease -causing agents which after discharge and upon exposure. Ingestion, inhalation
or assimilation into any organism, either directly from the environment or indirectly by ingestion through food chains. will cause death, disease. behavioral
abnormalities. cancer. genetic mutations. physiological malfunctions (including malfunctions In reproduction) or physical deformations, in such organisms or their
offspring; Toxic materials Include. by way of Illustration and not limitation: lead. cadmium. chromlum, mercury. vanadium. arsenic, zinc, onho-rdtro-cNorobenzene
(ONCE), polychlorinated blphenyls (PCBs) and dichlorodiphenyl trichloroethane (DDT); and any other materials that have or may hereafter be determined to have
toxic properties;
(59) Trickling Fiber. A biological treatment unit consisting of a material such as broken stone or rock over which wastewater is distributed; A high rate trickling
fiber Is one which operated at between 10 and 30 mgd per acre. A low rate trickling fiber Is one which is designed to operate at one to four mgd per acre;
(60) Trickling Fiber (Packed Tower). A plug flow type of operation In which wastewater flows down through successive layers of media or filtrate material; Organic
material is removed continually by the active biological fixed growth In each successive layer. This method may produce 'secondary' quality effluent. or may be
adapted to produce a r9tritled effluent;
(61) Vacuum Fiber. Centrifuges. or Fiber Presses. Devices which are designed to remove excess water from either digested or undigested sludge prior to disposal
or further treatment.