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HomeMy WebLinkAboutWQ0007174_Final Permit_19921223State of North Carolina Department of Environment, Health and Natural Resources Division of Environmental Management 512 North Salisbury Street • Raleigh, North Carolina 27611 James G. Martin, Governor A. Preston Howard, Jr., P.E. William W. Cobey, Jr., Secretary Acting Director December 23, 1992 Mr. William H. Mull, P.E., Manager Metropolitan Sewerage District of Buncombe County Post Office Box 8969 Asheville, North Carolina 28814 Subject: Permit No. WQ0007174 Metropolitan Sewerage District of Buncombe County Project 800, Section H Sludge Alkaline Stabilization Facility Buncombe County Dear Mr. Mull: In accordance with your application received October 27, 1992, we are forwarding herewith Permit No. WQ0007174 dated December 23, 1992, to Metropolitan Sewerage District of Buncombe County for the construction and operation of the subject facilities. This permit shall be effective from the date of issuance until November 30, 1997, and shall be subject to the conditions and limitations as specified therein. Please pay particular attention to the monitoring requirements in this permit. Failure to establish an adequate system for collecting and maintaining the required operational information will result in future compliance problems. If any parts, requirements, or limitations contained in this permit are unacceptable to you, you have the right to request an adjudicatory hearing upon written request within 30 days following receipt of this permit. This request must be in the form of a written petition, conforming to Chapter 150B of North Carolina General Statutes, and filed with the Office of Administrative Hearings, P.O. Drawer 27447, Raleigh, NC 27611-7447. Unless such demands are made this permit shall be final and binding. Regional Offices Asheville Fayetteville Mooresville Raleigh Washington Wilmington Winston-Salem 704/251-6208 919/486-1541 704/663-1699 919/5714700 919/946-6481 919/395-3900 919/896-7007 Pollution Prevention Pays P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone 919-733-7015 An Equal Opportunity Affirmative Action Employer Mr. Mull December 23, 1992 Page Two One set of approved plans and specifications is being forwarded to you. If you need additional information concerning this matter, please contact Mr. John Seymour at 919/ 733-5083. cc: Buncombe County Health Department Asheville Regional Office, Water Quality Asheville Regional Office, Groundwater Groundwater Section, Jack Floyd Training and Certification Unit Facilities Assessment Unit 2 Sincerely, 0- Q011 A. Presto Howard, Y., P.E. NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION DEPARTMENT OF ENVIRONMENT, HEALTH AND NATURAL RESOURCES II 601 COMPOST 1 PFRP STABILIZATION 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 Metropolitan Sewerage District of Buncombe County Buncombe County FOR THE operation of a wastewater treatment plant sludge composting/PFRP stabilization facility for the stabilization of digested and dewatered sludge from the source listed in Condition 11 3, to meet EPA requirements for the Process to Further Reduce Pathogens, using alkaline stabilization and the N-Viro Process, consisting of dual live bottom hoppers arranged to receive dump truck loads of dewatered sludge, dual mixing blenders which are fed by screw conveyors from the live bottom hoppers and two 12 foot diameter limekiln dust silos, dual incline conveyors serving two curing bins measuring approximately 29 feet by 50 feet by 10 feet deep (each with a shuttle conveyor), a 275 foot by 150 foot concrete pad wind row area, a series of leachate trench and collection drains that flow back to the wastewater treatment plant, a truck loading conveyor, a 327 foot by 150 foot building enclosing these facilities, a ventilation system using large wall fans and large roll up doors, and all associated piping, controls, equipment, and appurtenances to serve the Metropolitan Sewerage District of Buncombe County with no discharge of wastes to the surface waters, pursuant to the application received October 27, 1992, 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 November 30, 1997, and shall be subject to the following specified conditions and limitations: I. PERFORMANCE STANDARDS 1. Upon completion of construction and prior to operation of this permitted facility, a certification must be received from a professional engineer certifying that the permitted facility has been installed in accordance with this permit, the approved plans and specifications. Mail the Certification to the Permits and Engineering Unit, P.O. Box 29535, Raleigh, NC 27626-0535. 2. The Asheville Regional Office, phone no. 704/ 251-6208 shall be notified at least forty- eight (48) hours in advance of operation of the installed facilities so that an in-place inspection can be made. Such notification to the regional supervisor shall be made during the normal office hours from 8:00 a.m. until 5:00 p.m. on Monday through Friday, excluding State Holidays. 3. This permit shall become voidable in the event of failure of the sludge composting/PFRP stabilization facility to adequately protect the assigned water quality standards of the surface waters and groundwaters. 4. The sludge composting/PFRP stabilization program shall be effectively maintained and operated as a non -discharge system to prevent discharge of any wastes resulting from the operation of this program. 5. The issuance of this pen -nit shall not relieve the Permittee of the responsibility for damages to surface or groundwaters resulting from the operation of this facility. 6. In the event that the sludge composting/PFRP stabilization program is not operated satisfactorily, including the creation of nuisance conditions, the Permittee shall take such immediate corrective action as may be required by this Department, including the construction of additional or replacement wastewater treatment or disposal facilities. 7. Diversion or bypassing of the untreated sludge or compost drainage wastewater from the compost facilities is prohibited. 8. Composting/PFRP stabilization sludge should not be used in areas of intense public use (schools, playgrounds, etc.). II. OPERATION AND MAINTENANCE REQUIREMENTS 1. The facilities and disposal sites shall be properly maintained and operated at all times. 2. The sludge composting/PFRP stabilization operation must be conducted under the supervision of the certified wastewater treatment plant operator required by the Certification Commission for operation of the Metropolitan Sewerage District of Buncombe County Wastewater Treatment Plant, NPDES Permit No. NCO024911. 3. No sludges other than the following are hereby approved for composting in accordance with this permit: Permit Source County Number Metropolitan Sewerage Buncombe NCO024911 District of Buncombe County 4. All compost/PFRP stabilization sludge shall be stored on the concrete composting/wind row pad during composting and until such time as it is distributed to the buyer. If an alternate storage site is to be used, approval must be obtained from the Division of Environmental Management. PA 5. No compost shall be marketed that does not meet the criteria for the Process to Further Reduce Pathogens, which for: Lime Stabilization - Sufficient lime is added to produce and maintain a pH of 12 for 2 hours. N-Viro Process- Advanced alkaline stabilization with subsequent accelerated drying. Alternative 1; Fine alkaline materials (cement kiln dust, lime kiln dust, quicklime fines, pulverized lime, or hydrated lime) are uniformly mixed by mechanical or aeration mixing into liquid or dewatered sludge to raise the pH to greater than 12 for 7 days. If the resulting sludge is liquid, it is dewatered. The stabilized sludge cake is then air dried (while pH remains above 12 for at least 7 days) for at least 30 days and until the cake is at least 65% solids. A solids concentration of at least 60% is achieved before the pH drops below 12. The mean temperature of the air surrounding the pile is above 5 degrees C (41 degrees F) for the first 7 days. Alternative 2; Fine alkaline materials (cement kiln dust, lime kiln dust, quicklime fines, pulverized lime, or hydrated lime) are uniformly mixed by mechanical or aeration mixing into liquid or dewatered sludge to raise the pH to greater than 12 for at least 72 hours. If the resulting sludge is liquid, it is dewatered.The sludge cake is then heated, while the pH exceeds 12, using exothermic reactions or other thermal processes to achieve temperatures of at least 52 degrees C (126 degrees F) throughout the sludge for at least 12 hours. The stabilized sludge is then air dried (while pH remains above 12 for at least 3 days) to at least 50% solids. The use of any other composting method shall require a permit amendment prior to the distribution of any such compost/ PFRP stabilized sludge. III. MOINITORING AND REPORTING REQUIREMENTS 1. Any monitoring (including groundwater, surface water, sludge, soil, or plant tissue analyses) deemed necessary by the Division of Environmental Management to insure protection of the environment will be established and an acceptable sampling and reporting schedule shall be followed. 2. The Metropolitan Sewerage District of Buncombe County shall maintain records including, but not limited to the following: a. volume, source, and analysis of sludge and compost b. date, duration and temperature during composting c. name of compost/ PFRP stabilized sludge recipient, volume received, and intended use 3 An annual summary report (three copies) of the records required above shall be submitted on or before March 1 of the following year by Metropolitan Sewerage District of Buncombe County to the following address: NC Division of Environmental Management Water Quality Section Facility Assessment Unit PO Box 29535 Raleigh, NC 27626-0535 3. The Metropolitan Sewerage District of Buncombe County shall present to each recipient of compost written information that clearly states that compost/ PFRP stabilized sludge cannot be used on areas where root or leaf crops for direct human consumption are to be grown within one (1) year of the last application of compost/ PFRP stabilized sludge to the site. The Metropolitan Sewerage District of Buncombe County shall also include written recommendations to the compost/ PFRP stabilized sludge recipients for satisfactory uses of compost/ PFRP stabilized sludge material such as horticulture, silvicultural, other agricultural uses not specifically prohibited, etc. 4. Noncompliance Notification: The Permittee shall report by telephone to the Asheville Regional Office, telephone no. 7041 251-6208, as soon as possible, but in no case more than 24 hours or on the next working day following the occurrence or fust knowledge of the occurrence of any of the following: a. Any occurrence with the composting program which results in the composting of significant amounts of wastes which are abnormal in quantity or characteristic. b. Any failure of the composting/ PFRP stabilized sludge program resulting in a discharge of wastes to receiving waters. C. Any time that self-monitoring information indicates that the facility has gone out of compliance with the conditions and limitations of this permit or the parameters on which the system was designed. d. Any process unit failure, due to known or unknown reasons, that render the facility incapable of adequate sludge treatment. e. Any leakage or spillage that occurs during the transfer or transport of the compost/ PFRP stabilized sludge material. Persons reporting such occurrences by telephone shall also file a written report in letter form within 15 days following first knowledge of the occurrence. This report must outline the actions taken or proposed to be taken to ensure that the problem does not recur. IV. GROUNDWATER REQUIREMENTS 1. Any groundwater quality monitoring as deemed necessary by the Division of Environmental Management shall be provided. 4 LVINEBRIM W OLIN a to]0 1. The Permittee or his designee shall inspect the sludge storage, transport, and composting facilities to prevent malfunctions and deterioration, operator errors and discharges which may cause or lead to the release of wastes to the environment, a threat to human health, or a nuisance. The Permittee shall keep an inspection log or summary including at least the date _- and time of inspection, observations made, and any maintenance, repairs, or corrective actions taken by the Permittee. This log of inspections shall be maintained by the Permittee for a period of three years from the date of the inspection and shall be made available upon request by the Division of Environmental Management or other permitting authority. 2. Any duly authorized officer, employee, or representative of the Division of Environmental Management may, upon presentation of credentials, enter and inspect any property, premises or place on or related to the composting facility and facility at any reasonable time for the purpose of determining compliance with this permit; may inspect or copy any records that must be kept under the terms and conditions of this permit; or may obtain samples of groundwater, surface water, or leachate. V1. GENERAL CONDITIONS 1. This permit shall become voidable unless the land application activities are carried out in accordance with the conditions of this permit and in the manner approved by this Division. 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 a name change of the Permittee, a formal permit request must be submitted to the Division of Environmental Management accompanied by an application fee, documentation from the parties involved, and other supporting materials as may be appropriate. The approval of this request will be considered on its merits and may or may not be approved. 4. Failure to abide by the conditions and limitations contained in this permit may subject the Permittee to an enforcement action by the Division of Environmental Management in accordance with North Carolina General Statute 143-215.6. 5. The annual administering and compliance fee must be paid by the Permittee within thirty (30) days after being billed by the Division. Failure to pay the fee accordingly may cause the Division to initiate action to revoke this permit as specified by 15 NCAC 2H .0205 (c)(4). 6. The issuance of this pen -nit 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. A set of approved documents for the subject project must be retained by the applicant for the life of the project. 5 8. 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. 9. This permit may be modified or reissued to incorporate any conditions, limitations and monitoring requirements the Division of Environmental Management deems necessary in order to adequately protect the environment and public health. Permit issued this the 23rd day of December, 1992 NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION 0 ccto-" /p, A. Preston H ard, Jr., P.E., Acting Director Division of Ehiironmental Management By Authority of the Environmental Management Commission Permit No. WQ0007174 A Permit No. WQ0007 174 December 23, 1992 Engineer's Certification I, , as a duly registered Professional Engineer in the State of North Carolina; -having been authorized to observe (periodically, weekly, full time) the construction of the project, Project Name Location for the Permittee hereby state that, to the best of my abilities, due care and diligence was used in the observation of the construction such that the construction was observed to be built within substantial compliance and intent of the approved plans and specifications. Signature Date 7 Registration No 35'37'? 3 Rh Mapped and edited by Tennessee Valley Authority Published by the Geological Survey Control by USC&GS, USGS, and TVA Revised by TVA in 1962 by photogrammetric methods using aerial photographs taken 1961 and by reference to TVA-USGS quadrangle dated 1942. Map field checked by TVA, 1962 Polyconic projection. 1927 North American datum 10,000 -foot grid based on North Carolina rectangular coordinate system 1000 meter Universal Transverse Mercator Grid ticks, Zone 17, shown in bice Fine red dashed lines indicate selected fence and field fines visible on aerial photographs_ This information is unchecked Red tint indicates areas in which only landmark buildings are shown 3a S-4 Z� 39 r1�dµ 0' 55, 1'00, 16 MILS 1B MILS LITM GRID AND 1962 MAGNETIC NORTH DECLINATION AT CENTER OF SHEET U.' 7I0 PE 394! r i i 35'37'? 3 Rh Mapped and edited by Tennessee Valley Authority Published by the Geological Survey Control by USC&GS, USGS, and TVA Revised by TVA in 1962 by photogrammetric methods using aerial photographs taken 1961 and by reference to TVA-USGS quadrangle dated 1942. Map field checked by TVA, 1962 Polyconic projection. 1927 North American datum 10,000 -foot grid based on North Carolina rectangular coordinate system 1000 meter Universal Transverse Mercator Grid ticks, Zone 17, shown in bice Fine red dashed lines indicate selected fence and field fines visible on aerial photographs_ This information is unchecked Red tint indicates areas in which only landmark buildings are shown 3a S-4 Z� 39 r1�dµ 0' 55, 1'00, 16 MILS 1B MILS LITM GRID AND 1962 MAGNETIC NORTH DECLINATION AT CENTER OF SHEET U.' HA) II G �3C ALI= FOO C:LASSIFICA-1-1014 OF FACILI HES Name of Plant: MSW Owner or Contact Person: 40/ Mailing Address: 1)o P..Ix 9 County: Telephone: 76¢ -J-541� 906 --- - NPDES Permit No. NCOO Nondisc- Per. No- 40!Q 717 ,(- ~-IssueDate: Expiration Date:_ 5 -31 -5f - Existing -3/ Sf-Existing i acility V New Facility Rafed 'By.; lr(Q-i•` Date: //llj?9 L - ==Reviewed' -(Train. & Gejrt.), Reg. Office x?_ : -.cid.-.r.: , Reviewed (Train. & Cert.) Gentral Office - 0 Rt' fficeORC'Grade I Plant Class: (circle one)` I ll III 1V Total Points ITEM 40 Ax6 0 POINTS (1) Industrial Pretreatment Units and/or Industrial Pretreatment Program (see definition No. W) 4 (2) D IGN FLOW OF PLANT IN GPD (not applicable to non -contaminated cooling waters, sludge handling facilities for water purification plants, totally closed cycle systems (def, -No. 11), and facilities consisting only of Item (4) (d) or Items (4) (d) and (11) (d)) 0 20,000..- ................ 1 20.001 -- 50.000 .......................... 2 50,001 - 100,000 ................. L........ 3 100,001 250,000 .......................... 4 250,001 — 500,000 .......................... 5 500,001 --1,000.000 .......................... 8 1,000,001 -- 2,000,000 ........................ 10 2,000,001 (and up) - rale 1 point additional for each 200,000 gpd capacity up to a maximum of 30 (3) Design Flow (gpd) : PRELIMINARY UNITS (see definition no, 32) (a) Bar Screens ................................ r (b) Mechanical Screens, Sialic Screens or Comminuting Devices ........... .............. (c) Grit Removal --. ............................ or (d) Mechanical or Aerated Grit Removal ........... (e) Flow Measuring Device ...................... . or (f) Instrumented Flow Measurement .............. (9) Preaefation................................ 11 (5) SECONDARY TREATMENT UNITS (a) Carbonaceous Stage (i)Aeration - High Purity Oxygen System ..... Diffused Air System ........... Mechanical Air System (fixed, floating or rotor) ............. . Separate Sludge Reaeration (ii) Trickling Filler High Rate .................. . Standard Rate ............... Packed Tower ............... (iii) Biological Aerated Filter or Aerated Biological Filler .. . . . . ............... . (iv) Aerated Lagoons ..................... . 9/ a 1 2 1 (h) Influent Flow -Equalization ................... 2 (i) Grease or Oil Separators - Gravity .......... 2 Mechanical .......... Dissotved Air Flolation. 8J 0) Prechlorination _...._. 'JIMARY TREATMENT UNITS (a) Septic Tank (see definition no. 43) ............. 2 (b) ImhoflTank --------------- *.......... .-..... 5 (cJ Primary Clarifiers .............. . . ........ 5 (d) SeltGng Ponds or Settling Tanks for Inoroanic Nontoxic Materials (sludge handling facilities for water purification plants, sand, gravel, ,tone, and other mining operations except :(:creational activities such as gem or gold 1ilrl ilnrlJ &11 1 (v) RRotali g Biotogical Conlaclors ......... - (vi) Sand Filters - intermittent biological .... . recirculating biological _ - (vii) St2bil:zalion Lagoons ................... (viii)Clarifier ..�1MIBA ............... (ix) Single stage system for combined carbonaceous removal of BOD and nitrogenous removal by nitrification (see def. No. 12) (Points for this item have to be in addition to items (5) (a) (i) through (5) (a) (viii) ................. (x) Nutrient additions to enhance BOD removal .............................. (xi) Biological Culture ('Super Bugs-) addition to enhance organic compound removal ..... (b) Nitrogenous Stage (i) Aeration - High Purity Oxygen System . ... . Dittused Air System .......... . Mechanical Air System (fixed, {loafing, or rotor) Separate Sludge Reaeration .... . (ii) Trickling Filler - High Rale ........... .. Standard Rale ........... . Packed Tower ............ (iii) Biological Aerated Filler or Aerated Biologicat Filler .. , ... _ ......... (iv) Rotating Biological Contactors ....... (v) Sand Filter ,nlemiMenl biological Icc1'cu:ating bioloaic.0 (VI) 20 10 8 3 7 5 5 10 10 10 2 3 ( D 8 5 5 20 10 8 3 7 5 5 10 10 2 G) TFRTIAR) pfd ADVANCEDTtiL-ATML-NTUNIT (10) CIiCMICAL ADDITION SYSTC&I (S) (See definition No 9) Acli:: at'-d arbons Beds (� } (nal applicable to Gtcmical additions idled as rtcn wrlhoul carbon regeneration . . . . . . .......... S (g) {]). (S) (a) (xi), (6) (a). (6) (b). (7) (b). (7) (e). with Carbon regeneration .......... ......... 1 5 {9} (a}• (9) (b), or (9) (e) 5 points each: List. powdered or Granular Activated Carbon Feed - without carbon regeneration ................. 5 5 with carbon regeneration -- - - -- - - - - - - - ------ 1 5 S (c) Air Stripping 5 5 (d) Dengtrification Process (separate process) - .... 1 0 (e) Electrodialysis .............................. 5 (11) MISCELLANEOUS UNITS (f) Foam Separation ............................. 5 (a) Holding Ponds, Holding Tanks or Settling Ponds (g) Ion Exchange ................ . ......... . .... . 5 for Organic or Toxic Materials Including wastes (h) Land Application of Treated Effluent from mining operations containing nitrogen and/or (see definition no. 22b) (not applicable for phosphorous compounds in amounts significantly sand, gravel, stone 'and other similar mining greater than is common dor domestic wastewater .......... 4 operations) (b) Effluent Flow Equalization (not applicable to storage (i) on agriculturally managed sites (See def. basins which are inherent in land application systems). 2 No-4)......... 10 - • • • • • • - • • - - (c) Stage Discharge (not applicable to storage basins (ii) by high rale infiltration on non-agriculturally inherent in land application systems ....................................... 5 managed sites (includes rotary distributors (d) pumps_,.,..,..­_ 3 and similar fixed nozzle systems) .. _ ........ 4 (e) Stand-By Power Supply. ... 3 (iii) by subsurface disposal (includes low pressure (f) Thermal Pollution Control device._.......................................... 3 pipe systems and gravity systems except at plants consisting of septic tank and nitrifica- tion lines only) ................ . ... . .. . ..... 4 TOTAL POINTS (i) Microscreens.................................. 5 (j) Phosphorus Removal by Biological Processes CLASSIFICATION (See def. No. 26) ............................ 20 (k) Polishing Ponds - without aeration ....... 2 Class L .. _ ._.�._..__— 5 - 25 Points with aeration .......... 5 Class 11.... ....._..... ..... .................. .. _ 26- 50 Points (1) Post Aeration - cascade .............. 0 Class Ill......... ..... ................................. .... 51- 65 Points diffused or mechanical ... 5 Class IV.,_...._................ -_._._ 66- Up Points t/ (m) Reverse Osmosis ............................... S (n) Sand or Mixed-Media Filters - low rate .... I . I . I .. 2 Facilities having a rating of one through lour points, inclusive, high rale .......... 5 do not require a certified operator. Classification of al] other Treatment processes for removal of metal or facilities requires a comparable grade operator in responsible cyanide .................................... 15 charge. W) Treatment processes for removal of toxic materials other than metal or cyanide ......... 15 Facilities having an activated sludge process will be assigned a minimum classification of Class Il. SLUOGETREATMENT Facilities having treatment processes for the removal of metal (a) Sludge Digestion Tank - Heated............... Q0) or cyanide will be assigned a minimum classification of Class 1t. Aerobic ............... 5 Unheated ......Facilities having treatment processes for the biological removal (b) Sludge Stabilization (chemical or thermal) !�, ?D-i '.5 of phosphorus will be assigned a minimum classification of Class (c) Sludge drying Beds - Gravity .............. . . . I t I . Vacuum Assisted ....... 5 (d) Sludge Elulrialion... . ......................... In-plant processes and related control equipment which are an (e) Sludge Conditioner (chemical or thermal) ........ integral part of industrial production shall not be considered waste (f) Sludge Thickener (gravity) ...................... 5 treatment. Likewise, discharges of wastewater from residences (g) Dissolved Air Flotation Unit having a design flow of 1,000 gpd or less, shall not be subject to (not applicable to a unit rates as (3) (i) ......... rating. (h) Sludge Gas Utilization (including gas storage) . . . 2 (i) Sludge Holding Tank - Aerated................ 5 ADDITIONAL_ COMMENT,: Non-aeraled ............ 2 (j} Sludge Incinerator - (not including activated carbon regeneration) . - . CD (k) Vacuum Filler, Centrifuge or Filter Press or other similar dewatering devices .................... 1 0 (S) SLUDGE DISPOSAL (in luding incinerated ash) (a) Lagoons .. (b) Land Application (surface and subsurface) (see definition 22a) -where the facility holds the land app. permit 1 0 -by contracting to a land application operator who holds the land application permit .... . ....... .... 2 -land application of sludge by a contractor who does nol hold the permit for the wastewater treatment facility where the sludge is geneialed - . ... .. . . 10 (c) t-andfillcd (burial) ............................. 5 (9) DISINFECTION (a) Chlorioalion ........................ ..... 5 (b) Dech]grinalinn ............ (.1) H.iali.rl��r