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HomeMy WebLinkAboutWQ0002364_Final Permit_19960711State of North Carolina Department of Environment, Health and Natural Resources Division of Water Quality James B. Hunt, Jr., Governor Jonathan B. Howes, Secretary A. Preston Howard, Jr., P.E., Director July 11, 1996 Mr. Alton Baldree 650 Sim Dawson Road New Bern, NC 28560 Dear Mr. Baldree: A4 1:3EHNR Subject: Permit No. WQ0002364 Alton Baldree Residence Single Family Wastewater Spray Irrigation Facility Craven County In accordance with your application received April 16, 1996, we are forwarding herewith Permit No. WQ0002364, dated July 11, 1996, to Mr. Alton Baldree for the continued operation of the subject single family wastewater treatment and spray irrigation facilities. This permit shall be effective from the date of issuance until June 30, 2001, shall void Permit No. WQ0002364, issued April 8, 1993, 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, 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 permit shall be final and binding. If you need additional information concerning this matter, please contact Mr. Randy Kepler at (919) 733-5083 extension 544. Sincerely, c k�� A. Presto award, Jr., P.E. cc: Craven County Health Department Washington Regional Office, Water Quality Section Bob Cheek, Groundwater Section Training and Certification Unit Facilities Assessment Unit P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone (919) 733-5083 FAX(919)733-0719 An Equal' Opportunity Affirmative Action Employer 50% recycled/ 10% post -consumer paper NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION DEPARTMENT OF ENVIRONMENT, HEALTH AND NATURAL RESOURCES RALEIGH SINGLE FAMILY SPRAY IRRIGATION 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 Mr. Alton Baldree Craven County FOR THE continued operation of a 720 GPD spray irrigation wastewater treatment and disposal system consisting of two, 1,200 gallon septic tanks and a 1,000 gallon septic tank, a 1,200 gallon pump tank with a 20 gpm submersible pump and high water alarms, a 648 ft2 pressure sand filter, two, 1,200 gallon storage tanks, a 1,200 gallon pump tank with a 50 gpm submersible irrigation pump and high water alarms, a tablet chlorinator, and a 21,000 ft2 spray irrigation area with eight sprinklers to serve the Alton Baldree Residence, with no discharge of wastes to the surface waters, pursuant to the application received April 16, 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 June 30, 2001, shall void Permit No. WQ0002364 issued April 8, 1993, and shall be subject to the following specified conditions and limitations: I. PERFORMANCE STANDARDS 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 assimilate the wastewater, the Permittee shall take immediate corrective actions including those actions that may be required by the Division of Water Quality, such as the construction of additional or replacement wastewater treatment and disposal facilities. 2. 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. 3. The sand media of the pressure sand filter must comply with the Division's sand specifications. 4. 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. 5. Diversion or bypassing of the untreated wastewater from the treatment facilities is prohibited. 6. The following buffers shall be maintained: a) 400 feet between wetted area and any residence or places of public assembly 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 treatment/storage units and any wells, and g) 50 feet between treatment units and property lines. Some of the buffers specified above may not have been included in previous permits for this waste treatment and disposal system. These buffers are not intended to prohibit or prevent modifications, which are required by the Division, to improve performance of the existing treatment facility. These buffers do, however, apply to modifications of the treatment and disposal facilities which are for the purpose of increasing the flow that is tributary to the facility. These buffers do apply to any expansion or modification of the spray irrigation areas and apply in instances in which the sale of property would cause any of the buffers now complied with, for the treatment and disposal facilities, to be violated. The applicant is advised that any modifications to the existing facilities will require a permit modification. H. OPERATION AND MAINTENANCE REQUIREMENTS 1. The facilities shall be properly maintained and operated at all times. 2. In the event that Craven County, in conjunction with the Craven County Innovative and Alternative Demonstration Program, is no longer in responsible change of the operation and maintenance of the facility and 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 Permittee 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 I1, III, and IV facility at Ieast 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. 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. 5. Adequate measures shall be taken to prevent wastewater runoff from the spray field. 6. The application rate shall not exceed a loading of 0.035 GPD per square foot. 7. 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. 8. No type of wastewater other than that from the Alton Baldree Residence shall be sprayed onto the irrigation area. 9. In the event that the sprinkler heads fail to achieve the design diameter due to obstructions, the obstructions shall be removed or the sprinkler heads shall be raised and supported to such height that the design diameter is achieved. 10. No traffic or equipment shall be allowed on the disposal area except while installation occurs or while normal maintenance is being performed. 11. The spray irrigation field shall be fenced with at least a two strand wire fence. 12. The Permittee is responsible for the operation and maintenance of the entire treatment and disposal system including, but not limited to, the following items: a. The septic tanks and recirculation tank shall be checked annually and pumped out as needed. b. The disinfection system shall be checked every week for proper operation. c. The storage, pump, and alarm systems shall be inspected weekly. The scum layer shall be removed at the same interval as the septic tank is cleaned out. d. The pressure which regulates the sand filter dosing shall be inspected monthly and adjusted, as necessary. e. The spray system shall be inspected weekly to make certain of the sprayers proper operation, that the vegetative growth allows a proper spray pattern, that the soil is assimilating the disposed treated wastewater with no surface runoff, and that no objectionable odors are being generated. III. GROUNDWATER REQUIREMENTS 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). 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. 2. Upon a determination by Division that the facility operation has or will contravene groundwater standards at or beyond the compliance boundary, the permittee will cease use of this facility immediately upon receipt of notice of such contravention. 3. Any groundwater quality monitoring as deemed necessary by the Division of Water Quality shall be provided. IV. MONITORING AND REPORTING REQUIREMENTS 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. 2. The Permittee shall maintain records of all maintenance performed on the system and irrigation area, as required in Condition II 12 for a minimum of five years. This information shall be provided to the Division of Water Quality upon request. 3. Noncompliance Notification: The Permittee shall report by telephone to the Washington Regional Office, telephone number 919-946-6481, 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 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, spray heads, etc.; or b. Any failure of a pumping station 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. 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. IV. INSPECTIONS Adequate inspection, maintenance, and cleaning shall be provided by the Permittee or Craven County, in conjunction with the Craven County Innovative and Alternative Demonstration Program, or the certified wastewater treatment operator to insure proper operation of the subject facilities. 2. 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. 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. Upon the availability of a municipal or regional sewerage collection system, the subject wastewater treatment facilities shall be abandoned and all wastewater discharged into the municipal or regional sewerage system. 4 5. Failure to abide by the conditions and limitations contained in this permit may subject the Permittec 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). 6. 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. 7. This permit may be revoked if the Permittee fails to abide by the conditions of the "Operation and Maintenance Agreement" previously signed by the Pemlittee. The spray irrigation field shall be fenced with a least a two strand wire fence. 9. A set of approved plans and specifications for the subject project must be retained by the Permittee for the life of the project. 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. 11. This permit shall become voidable unless an agreement between the Permittee and Craven County, in conjunction with the Craven County Innovative and Alternative Demonstration Program, or a certified wastewater treatment operator is in full force and effect for the operation and maintenance of this wastewater treatment and spray irrigation disposal facility. Permit issued this the Eleventh day of July, 1996 NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION A. Preston 10ward, Jr., P.EJ Director Division of Whter Quality By Authority of the Environmental Management Commission Permit Number WQ0002364 OPERATION AND MAINTENANCE AGREEMENT FOR THE DIVISION OF ENVIRONMENTAL MANAGEMENT Name: N1r, Alton Baldree Address: 650 Sim Dawson Road City: New Bern State: NC ZIP: 28560 Single Family Residence Wastewater Treatment System Final Disposal by Spray Irrigation Permit No. WQ0002364 Craven County I agree to operate and maintain the wastewater treatment system as follows: The Permittee is responFihle for the oper-ai- }n and 3nalntenance of the entire treatment and disposal system including, but not limited to, the following items: a. The septic tank shall be checked every six (6) months and pumped out as required. b. The tablet chlorinator shall be checked every week until the actual usage rate is established and thence on a monthly basis. Tablets shall be added so as to provide proper chlorination. c. The storage system, pump system, and alarm system shall be inspected monthly. The scum layer shall be removed at the same interval as the septic tank is cleaned out. d. The spray system shall be inspected monthly to make certain of the sprayers prct-ar operation, that the vegetative growth allows proper spray patterns, that the soil is absorbing the disposed treated wastewater with no surface runoff, and that no objectionable odors are being generated. 2. Failure of the Permittee to properly operate this system is subject to a penalty up to $10,000 per day. 3. Failure to meet permit conditions or violation of the State's surface or -groundwater regulations will require cessation of occupancy of the residence. I understand that failure to comply with these conditions along with the permit conditions may result in voiding the permit - Signature: ���`� Date: Notary Seal Notary Signature: ?� C �' Date: i RATING SCALE FOR CLASSIFICATION OF WATER POLLUTION CONTROL SYSTEMS Name of Facility. r' (4( e 5ars�=''rrr, Owner or Contact Person: fiLla2n=r ' Mailing Address: o Sn�. s em'' � 'r>t- C- '2;rt 1 County: e.re"Ie .- T e I e p h o n '7 - Present Classification: New Facility Existing Facility NPDES Per. o, NCOO Nondisc. Per. No.WQ L%2 6`/1 Health Dept.Per No. Rated by: __ Y'),"('-- ----Telephone: VIr'FY6 6 4l fl Date: —94]* Reviewed by: Health Dept. Telephone: Regional Office Telephone: Central Office Telephone: ORC: 'e. Grade: Telephone: Check Classification(s): Subsurface S ra Irri aticn �+` Land Application Wastewater Classification: (Circle One) 1 11 III IV Total Points:A�— It IFF.101 z 1 I\IltaIl: if'a9 IA.► ��af����+ M*451-j 110i q III-IIIINI I 1 Mi 1; f ZAlay IN91 E 09i G INN MAI tiwa % a"'V �► O 2 1L ice\:\ ti 12ej MV -9A 7 ►A&% \: �� 2II :.!•:a :►A .i: IL ►Ili �.: lad► ► :G .'�. uJ iiL+•u :1 i. SUBSURFACE CtASSiFICATK)N (check all units that apply) i. septic tanks 2. pump tanks 3. siphon or pump -dosing systems 4. sand filters 5. grease trap/interceptor 6. oillwater separators 7. gravity subsurface treatment and disposal: 8. pressure subsurface treatment and disposal: SPRAY IRRIGATION CLASSIFtCAT10N (check all units that apply) 1. preliminary treatment (definition no. 32 ) 2. lagoons 3. { septic tanks 4. pump tanks 5. pumps 6.L,-� sand filters 7, grease trap/interceptor 8. oil/water separators 9, disinfection ID, chemical addition for nutrient/algae control 11. e/spray irrigation of wastewater In addition to the above classifications, pretreatment of wastewater In excess of these components shell 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, ;Inles5 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 ii Appropriate) 1. OiUwater Separator Systems consisting only of physical separation, pumps and disposal; 2. Septic Tank/Sand Fitter Systems consisting only of septic tanks, dosing apparatus, pumps,sand filters, disinfection 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 oillwater separators, pumps, air -stripping, cartoon adsorption, disinfection and disposJ, 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 U permitted after July 1, 1993 or U 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) ITEM POINTS ( 1 } Industrial Pretreatmort Units or Industrial Pretreatment Program (see definition No. 33) ...................................................4 (2) DESIGN FLOW OF PLANT IN gpd [not appilcable to non -contaminated cooling waters, sludge handling facilities [or water purification plants, totally closed cycle systems(sae definition No. 11), and fac€fides consisting only of Item (4)(d) or Ilems (4)(d) and (11)(d)) 0 - 20,000 .......................... .......... .............. ............................................ .............. ....................................t 20,001 - 50.000......................................................................................................................................2 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 2,000,001 (and up) rate 1 point additional for each 200,000 gpd capacity up to a maximum of .................30 Design Flow (gpd) (3) PRELIMINARY UNITS/PROCESSES (sae definition No.32) (a) Bar Screens...............................................................................................................................................1 or (b) Mechanical Screens, Static Screens or Comminuting Devices...........................................................................2 (c) Grit Removal ..............................................................................................................................................1 or (d) Mechanical or Aerated" Removal.............................................................................................................2 (e) Flow Measuring Device................................................................................................................................1 or (i) Instrumented Flow Measurement.................................................................................................................2 (g) Preaeration................................................................................................................................................2 (h) Influent Flow Equalization..........................................................................................................................2 (i) Grease or Oil Separators - Gravity.................................................................................................................2 Mechanical.................................................................................................................................................3 Dissolved Air Flotation................................................................................................................................e (�) Prechlorination.........................................................................................................................................5 (4) PRIMARY TREATMENT UgITS/PROCESSES (a) Septic Tank (see definition No. 43)- .......................................................................................................... 2 (b) Imhoff Tank...............................................................................................................................................5 (c) Primary Clarfflers..........................................................................................................................................5 (d) Settling Ponds or Settling Tanks for Inorganic Non-toxlc Materials (sludge handling facilities for water purification plants, sand, gravel, stone. and other mining operations except recreational activitias such as gem or gold mining).......................................................................................................................... 2 i (5) SECONDARYTREATMENT NWROCESSES (a) carbonaceous Stage (i) Aeration -High Purity Oxygen System...............................................................................20 DrffusedAir System.......................................................................................................10 Mechanical Air System (fixed, floating of rotor).................................................................5 SeparateSludge Reaeration ............................................................................................. 3 (i€} Trickling Filter HighRate.......................................................................................................................7 StandardRate...............................................................................................................5 PackedTower. .... --- ................................................................................................. —5 {ill) Biological Aerated Filter or Aerated Biological Filter ............................................................1 0 (IV) Aerated Lagoons..........................................................................................................1 D (v) Rotating Biological Contactors......................................................................................10 (vi) Sand Fillers -intermittent biological..................................................................................2 Recirculatingbiological.....................................................................................................3 (vil} Stabilization Lagoons.....................................................................................................5 (vial) CL-Uller..........................................................................................................................5 (Ix) Single stage system for combined carbonaceous removal of BOD and nitrogenous removal by nitrification (see deffnftion No. 12)(Points for this item have to be in addition to items (5)(a)(1) through (5)(a)(viii), utilizing the extended aeration process (see detinftion N0.3a)...........................................2 utilizing other than the extended aeration process............................................................8 (x) Nutrferg additions to enhance BOD removal......................................................................5 (xl) Biological Culture ('Super Bugs')addhion........... ............ ................................. -............... 5 (b) Nlirogenous Stage (i) Aeration - High Purity Oxygen System-- ....... .............................................. 20 Diffused Air System.......................................................................................................1 0 Mechanical Air System (fixed, floating or rotor)..................................................................8 SeparateSludge Reaorallon.............................................................................................3 (li) Trickling Filter -Nigh Rate... ....................................................................... . ....................... 7 Standard Rate................................................................................................................5 PackedTower.................................................................................................................5 {i€1} Slologlcal Aerated Fitter or Aerated Biological FlNer.............................................................1 0 {Iv) Rotating Slological Contactors ......................................................................................10 (v) Sand Rher - Intermittent blological...................................................................................2 Recirculatingbiologlcal........... ............. ............ .............................................................--.3 (vi) Cfaffiier.........................................................................................................................5 (6) TERTIARY OR ADVANCED TREATMENT UNITS+PROCESSES (a) Activated Carbon Beds - without carbon rageneratlon..........................................................:........................................5 withcarbon reganeralion.......................................................................................................15 (b) Powdered or Granular Activated Carbon Feed- 'Mthout carbon regeneration... .... ......................................................................................... Z withcarbon regeneration.....................................................................................................15 (c) Air stripping ................ ................................................................................ ................. ......... ..-.... ............5 (d) Denftrtflcation Process.....................................................................................................................-.,......1 0 (e) Electrodlalysls............................ ...................................................................---.........................................5 . (f ) Foam Separation.......................................................................................................................................5 (g) ton 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 infiltratlon..........................................................................4 (i) Microscreens.............................................................................................................................................5 (1) Phosphorous Removal by Bloioglcal Processes (See definition No, 26).........................................................20 (k) Pollshing Ponds - without aeration............................................................................................................2 withaeration ............................... ........................................................................ .......... .5 (15) dlectrodlalysls. Process for removing ionized safts from water through the use of Ion -selective Ion -exchange membranes; (16) Niter Press. A process operated mechanically lar 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 grit 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 different 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) Microscreen. A low speed, continuously back -washed, rotating drum fitter operating under gravity conditions as a polishing method for removing suspended solids from eflluerd; (24) Nildllcatfon Process. The biochemical conversion of unoxidized nitrogen (ammonia and organic nitrogen) to oxidized nitrogen (usualiy nitrate); (25) Nitrogenous Stage. A separate stage of wastewater treatment designed for the specific purpose of convening ammonia nitrogen to nitrate nitrogen; (26) Phosphate Removal, Biological- The removal of phosphorus from wastewater by an oxicianoxic process designed to enhance luxury uptake of phosphorus by the microorganisms; (27) Polishing Pond. A holding pond following secondary treatment with sufficient detention time to allow settling of finely suspended solids; (28) Post Aeration. Aeration following conventional secondary treatmerN units to Increase ellluent D.O. or for any other purpose; (29) Post Aeration. (Cascada) 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 limns of the discharge permit; (30) Powdered to Granular Activated Carbon Feed. A biophysical carbon process that utilizes biological activity and organic absorption by using powdered or granular activated carbon; Virgin or regenerated carbon is feed 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 d(scharge, to remove or to neutralize substances Injurious to sewers and treatment processor 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 Clarlilers. The lirst 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 farming nearly pure liquid free from suspended solids: (36) 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. Fftralion of effluent following septic tanks, lagoons, or some other treatment process In which further blodecompositlon is expected to produce desired effluents; Hydraulic loading rates an these lifters are computed In gpolac and have a resulting low gpm/sf (less than one); b) Recirculating biological - the same type of sand filter as defined in Subparagraph (39) (a) of this Rule with the added capability to recycle effluent back through the sand fifter, (40) Sand or Mixed -Media Fitters. A polishing process by which effluent limits are achieved through a further reduction of suspended solids; (a) low rate -- gravity, hydraulically loaded litter with loading rates In the one to three gpm/si range; (b) high rate -- a pressure, hydraulically loaded filler with loading rates in the five gpmisf range; At any rate, the loading rate will exceed three gpnJsf; (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) nits;(42) Separate Sludge Roaaralion. A part of the contact stabilization process whore thu activated sludge is transferred to a tank and aerated before reiuming it to the contact basln; (43) Septic Tank. A single -story settling tank In which settled sludge is In contact with the wastewater flowing through the lank; shall not be applicable for septic tank systems serving single family residences having capacity of 2,CC0 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 living organisms, which Includes aaratod holding tants; (45) Sludge Drying Bods. 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 UII zatlon. The process of using sewage gas for the purpose of heating buildings, driving engines, etc.; (48) Sludge Holding Tank (Aarwad 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. stvdge 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 we•r!d be required i,:p tchieve stabilizatlor of organic matter. A nonaeratad tank would simply be used to decant sludge prior to dewatering 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 heal treatment; (51) Sludge Thickener. A type of sedimentation tank In which the sludge Is permitted to settle and thicken through aghaiion and gravity; (52) Stabilization Lagoon. A type of oxidation lagoon In which biological oxidation of organic matter is affected by natural transfer of oxygen to the water from air (not a polishing pond); (53) Stand -By Power Supply. On site or portable electrical generating equipment; (54) Static Screens. A stationary screen designed to remove solids, including non-biodagradablo particulate (fioatable solids, suspended solids and BOO 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 filter might be employed for this purpose; (56) Thermal Pollution Control Devlce. A device providing for the transfer of heat from a fluid flowing In tubes to another fluid outside the lubes, or vice versa; or other means of regulating liquid temperatures; (57) Thermal Sludge Conditioner. A coed tioning process by which heat Is added for a protracted period of lime to improve the dewaterabfllty of sludge by the solubillzing and hydraufizing of the sora#ler 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, Ingestfon, Inhalation or asslmllatbn into arry organism, either directly from the environment or Indirectly by ingestion through good chains, will cause death, disease, behavioral abnormalitfos, cancer. genetic mutations, physiolog{cal 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, chromium, mercury, vanadium, arsenic, zinc, ortrlo-nhro-chiorobenzone (ONCB), polychlorinated biphenyls (PCBs) and dlchlorodiphenyl trichloroethane (DDT); and any other materials that have or may hereattor be determined to have toxic properties; (59) THckling Filler. A biological treatment unit consisting of a malarial such as broken stone or rock over which wastewater is distributed; A high rate trickling fifter Is one which operated at between 10 and 30 mgd per acre. A low rate trickling fitter Is one which is designed to operate at one to four mgd per acre; (60) Trickling Filter (Packed Tower). A plug flow type of operation In which wastewater flows down through successive layers of media or fiftrate material; Organic material is removed continually by the active biologlcai foxed growth In each successive layer. This method may produce -secondary" quality effluent, or may be adapted to produce a Ntrff{ed effluent; (61) Vacuum Fifter, Centrituges, or Fitter Presses. Devices which are deslgnsd to remove excess water from oilher digested or undigested sludge prior to disposal Of further treatment. CLASSIFICATION class................................................ ........................................................... 5-25 Paints ClassIf ................. ........................................................................................ 26-50 Paints Classill........................................................................................................51-65 Points ClassN................. ...................................................................................... 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 will be assigned a minimum classiffcallon of Class 11. Facilities having treatment processes for the removal of metal or cyanide will be assigned a minimum classilication of Class 11, Facilities having treatment processes for the biological removal of phosphorus will be assigned a minimum classification of Class 111. ------------------------------------------------------------- .0004 DEFINITIONS The following definitions shall apply throughout this Subchapter. (i) Activated Carbon Beds. A physlcallchemical 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 downfiow carbon beds. Carbon may or may not be regenerated on the wastewater treatment plant site; (2) Aerated Lagoons. A basin in which all solids are maintained In suspension and by which biological oxidation or organic matter Is reduced through artificially accelerated transfer of oxygen on a Ilow-through basis; (3) Aeration. A process of bringing about Intimate contact between air or high purity oxygen In a liquid by spraying, agitation or diffuslon;(3a) Extended Aeration. An activated sludge process utilizing a minimum hydraulic detention time of 18 hours. (4) AgricuAurally 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 xylone; (6) Carbon Regeneration. The regeneration of exhausted carbon by the use of a furnace to provide extremely high temperatures which volatilize and oxl6za the absorbed Impurities; (7) Carbonaceous Stage. A stage of wastewater treatment designed to achieve 'secondary' effluent limits; (8) Centrifuge. A mechanical device In which centrifugal force Is used to separate solids from liquids or to separate liquids of ddierent densitlas; (9) Chemical Addhfon Systems- The additlon of chemical(s) to wastewater at an application point for purposes of Improving solids removal, pH adjustment, alkalinity control, etc.; the capability to experiment with dhferent chemicals and different appllcatlon points to achieve a specify 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 di€larent application points for dMeren€ purposes will result in the systems being rated as separate systems; (10) Chemical Sludge Conditioning. The addition of a chemical compound such as time, ferric chloride, or a polymer to wet sludge to coalesce the mass prior to its application to a dewatering device; (1 i) 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 simffar operations. Such systems shall carry a maximum of two points regarc{less of pumping Facilities or any other appurtenances; (12) Combined Removal of Carbonaceous BOD and Nitrogenous Removal by Nitrilication- A single stage system required to achieve permit effluent limits on BOD and ammonia nitrogen within the same bioioglcal reactor, (13) Dechlorinatlon. The partial or complete reduction of residual chlorine In a liquid by any chemical or physical process; (14) DenilrllicaCon Procam, The conversion o1 nitrate -nitrogen to nitrogen gas; (1) Post Aeration - cascade..............................................................................................................................0 diffused or mechanical.........................................................................................................2 (m) Reverse Osmosis.................................,,,..,..,..............................,.................,............5 n) Sand or Mixed -Media Filters - low rate..........................................................................................................2 highrate......................................................................5 (o) Treatment processes for removal of metal or cyanide...................................................................................15 (p) treatment processes for removal of toxic materials other than metal or cyanide..............................................15 (7) SI..UDGETREATMENT (a) Sludge Digestion Tank - Healed (anaerobic)...............................................................................................10 Aerobic ..... ......... ................. .............. I— ......... ......... 1.......... 4 ...... 1.........1 ..............................5 ............... Unheated(anaerobic)..... . ..... 4 ................................................................................................................... 3 (b) Sludge Stabilization (chemical or thermal)....................................................................................................5 (c) Sludge Drying Beds - Gravity......................................................................................................................2 VacuumAssisted .................................. . . .................... . 1111 .....................................................................-....5 (d) Sludge Elutriation................................................... ................................................................................... 5 (e) Sludge Condhloner (chemical or thermal)..........................................................................1111... ....................5 (1) Sludge Thickener (gravity)..........................................................................................................................5 (g) Dissoived Air Flotation Unit [not applicable to a unit rated as(3)(i)].............................................................8 (h) Sludge Gas Utilization (including gas storage).............................................................................................2 (i) Sludge Holding Tank - Aerated....................................................................................................................5 Non-aerated .............................................................................................................................................2 (�J Sludge Incinerator (not Including activated carbon regeneration)................................................................10 (k) Vacuum Filter, Centrifuge, or Filter Press or other similar dewatering devices...................................................1 0 (8) RESIDUALS UrILIZATIOWDISPOSAL (induding incinerated ash) (a) Lagoons.................................................................2 ......... . ... .1111.. ,......................-........... .................. .......- (b) Land Application (surface and subsurface) (see definition 22a) by contracting to a land application operator or landfill operator who holds the land appiicallon permit or landfill permit...........................................................1111..--1111 ................................................................2 . (c) Dedicated Landfill(burial) by the permittea of the wastewater treatment facility. .............................................. 5 (9) DIS>NIFEG11CN (a) Chlorination .............. ............................................... ................................................................................. 5 (b) Dechlorinalion..........................................................................................................................................5 (c) Ozone......................................................................................................................................................5 (d) Radiation....................................................................... ..........................................................................5 (10) CHEMICAL ADDITION SYSTEM($) ( see definition No. 9) [not applicable to chemical additions rated as item (3)(1), (5)(a)(xi), (6)(a). (6)(b), (7)(b), (7)(e), (9a), (9)(b) or (9)(c) 5 points each: List........................................................................................... ....5 ...................................................................................................................................5 .................................................................................................................1.....1.1.1... 5 .. .........................................................................................................................5 (1 1) MISC5,IIWEOUS UNiTSrPROCESSES (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 fordomestic wastewater............................................................................................................................4 (b) Effluent Flow Equalization (not applicable to storage basins which are inherent in land application systems)......2 (c) Stage Discharge (not applicable to storage basins Inherent In land application systems)..................................5 (d) Pumps........................................................................... ......................... .................................................. (e) Stand -By Power Supply............................................................................................................................3 (i) Thermal Pollution Control Device................................................................................................................3 TOTAL POINTS.......................................................................... CLASSIFICATION class................................................ ........................................................... 5-25 Paints ClassIf ................. ........................................................................................ 26-50 Paints Classill........................................................................................................51-65 Points ClassN................. ...................................................................................... 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 will be assigned a minimum classiffcallon of Class 11. Facilities having treatment processes for the removal of metal or cyanide will be assigned a minimum classilication of Class 11, Facilities having treatment processes for the biological removal of phosphorus will be assigned a minimum classification of Class 111. ------------------------------------------------------------- .0004 DEFINITIONS The following definitions shall apply throughout this Subchapter. (i) Activated Carbon Beds. A physlcallchemical 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 downfiow carbon beds. Carbon may or may not be regenerated on the wastewater treatment plant site; (2) Aerated Lagoons. A basin in which all solids are maintained In suspension and by which biological oxidation or organic matter Is reduced through artificially accelerated transfer of oxygen on a Ilow-through basis; (3) Aeration. A process of bringing about Intimate contact between air or high purity oxygen In a liquid by spraying, agitation or diffuslon;(3a) Extended Aeration. An activated sludge process utilizing a minimum hydraulic detention time of 18 hours. (4) AgricuAurally 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 xylone; (6) Carbon Regeneration. The regeneration of exhausted carbon by the use of a furnace to provide extremely high temperatures which volatilize and oxl6za the absorbed Impurities; (7) Carbonaceous Stage. A stage of wastewater treatment designed to achieve 'secondary' effluent limits; (8) Centrifuge. A mechanical device In which centrifugal force Is used to separate solids from liquids or to separate liquids of ddierent densitlas; (9) Chemical Addhfon Systems- The additlon of chemical(s) to wastewater at an application point for purposes of Improving solids removal, pH adjustment, alkalinity control, etc.; the capability to experiment with dhferent chemicals and different appllcatlon points to achieve a specify 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 di€larent application points for dMeren€ purposes will result in the systems being rated as separate systems; (10) Chemical Sludge Conditioning. The addition of a chemical compound such as time, ferric chloride, or a polymer to wet sludge to coalesce the mass prior to its application to a dewatering device; (1 i) 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 simffar operations. Such systems shall carry a maximum of two points regarc{less of pumping Facilities or any other appurtenances; (12) Combined Removal of Carbonaceous BOD and Nitrogenous Removal by Nitrilication- A single stage system required to achieve permit effluent limits on BOD and ammonia nitrogen within the same bioioglcal reactor, (13) Dechlorinatlon. The partial or complete reduction of residual chlorine In a liquid by any chemical or physical process; (14) DenilrllicaCon Procam, The conversion o1 nitrate -nitrogen to nitrogen gas;