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HomeMy WebLinkAboutNC0000311_Wasteload Allocation_19951012NPDES DOCUMENT !;CANNING COVER SHEET NC0000311 M-B Industries WWTP NPDES Permit: Document Type: Permit Issuance WacsteioaclAllocatioiim ''' Authorization to Construct (AtC) Permit Modification Complete File - Historical Engineering Alternatives (EAA) Plan of Action Instream Assessment (67b) Speculative Limits Environmental Assessment (EA) Permit History Document Date: October 12, 1995 This document is printed on reuse paper - izore any content on the re'rerse side NPDES WASTE LOAD ALLOCATION PERMIT NO.: NC000031 1 PERMITTEE NAME: M-B Industries FACILITY NAME: M-B Industries, Inc. Facility Status: Existing Permit Status: Renewal Major Minor Pipe No.: 001 Design Capacity: 0.030 MGD Domestic (% of Flow): Industrial (% of Flow): 100* % Comments: Outfall 001 for industrial effluent Outfall 002 for non -contact cooling water RECEIVING STREAM: West Fork French Broad River Class: C-Trout HQW Sub -Basin: 04-03-01 Reference USGS Quad: G7NE, Rosman (please attach) County: Transylvania Regional Office: Asheville Regional Office Previous Exp. Date: 8/31/95 Treatment Plant Class: II Classification changes within three miles: Reverts to WS-III Tr at French Broad Requested by: Prepared by; Reviewe EL �Z— Jay Lucas Date: 7/6/95 Date: /0 7/ is Date: D IZ Modeler Date Rec. # c:/.;g✓ "2/7A5- szz Drainage Area (m'2 ) 27..2 Avg. Streamflow (cfs): 93.3 7Q10 (cfs).27. i Winter 7Q10 (cfs) Toxicity Limits: IWC ?d % Instream Monitoring: Parameters I mf2i'1 Cth) Upstream - ✓ Location :6-0 102W QC -/ Downstream / Location ) l l:2 W 11 30Q2 (cfs) hronic Monthly Average Daily Max. WQ or BPT Wastef ow (MGD): 0.030 TSS (mg/1): 31 60 BPT pH (SU): 6-9 6-9 BPT Cadmium (mg/1): r . o• 71fo 64 Chromium (mg/1): 1.71 2.77 BPT Copper (mg/1): 2.07 3.38 BPT Nickel (mg/1): A.38 398 Bvr Lead (mg/1): 0.43 0.69 BPT Zinc (mg/1): 1.48 2.61 BPT Cyanide (mg/1): 0.65 1.20 BPT Silver (mg/1): 0.24 0.43 BPT Phenols (WI):monitor monitor TTO: 2.13 BPT Oil & Grease (mg/1): ,752 BPT Chlorine (1tg/1): n / Comments: _ 7/6/95 NC0000311 M-B Industries, Inc. Effluent Guideline Limitations Effluent Parameter EPA Limitations in 40 CFR (mg/1) Effluent Limits (Ibs/day) Comments Daily Max Monthly Avg Daily Max 30 day avg. Cadmium, total 0.69 0.26 NA NA BPT Chromium, total 2.77 1.71 NA NA BPT Copper, total 3.38 2.07 NA NA BPT Lead, total 0.69 0.43 NA NA BPT Nickel, total 3.98 2.38 NA NA BPT Silver, total 0.43 0.24 NA NA BPT • Zinc, total 2.61 1.48 NA NA BPT Cyanide, total 1.20 0.65 NA NA BPT TTO* 2.13 no limit NA NA BPT Oil and Grease 52 26 NA NA BPT TSS 60 31 NA NA BPT pH 6.0-9.0 6.0-9.0 NA NA BPT Type of Product Produced 1000 Ibs/day produced- max Effluent Guideline Reference Metal forming, stamping, and finishing NA 40 CFR 433.13 (Subpart A) Metal Finishing *Total Toxic Organics Facility Name: NPDES No.: Type of Waste: Facility Status: Permit Status: Receiving Stream: Stream Classification: Subbasin: County: Regional Office: Requestor: Date of Request: Topo Quad: FACT SHEET FOR WAS IELOAD ALLOCATION M-B Industries, Inc.-001 NC0000311 Industrial - 100% Existing Renewal West Fork French Broad River C Tr HQW 040301 Transylvania Lucas j 7 5 G7NE Request # 8322 Stream Characteristic: USGS # Date: Drainage Area (mi2): Summer 7Q10 (cfs): Winter 7Q10 (cfs): Average Flow (cfs): 30Q2 (cfs): IWC (%): 27.2 27.9 93.8 0.17 Wasteload Allocation Summary 5/ ii✓c- kwarC (approach taken, correspondence with region, EPA, etc.) c; , Facility requesting renewal of NPDES permit. Recommend renewal of existing limits with so e modifications:nickel guideline can be revised to monitdring only. All reported nickel values for past two years were below detection. Phenols limit based on water quality and previous stream class 1. (WS) can be revised to monitoring only. Toxicity limit remains acute pass/fail @ 90 0. 0 g r� /� Ex&9f irr 4'S .' Vs. ' Special Schedule Requirements i atl itional comments from Reviewers: Recommended by: Reviewed by Instream Assessment: Region Permits 8i Engineering: sor: Date: 9/1/95 9/s/ys Date: Date: �lO�ets Date: /D/b/`I� RETURN TO TECHNICAL SERVICES BY: O C T % 0 t995 ,♦GCE 6 cC O c OCCi ,t. CktVI7 c\l'f15 �Gct:vca \c, & - \olloS".- LS S. 2 Type of Toxicity Test Existing Limit Recommended Limit Monitoring Schedule: Existing Limits Wasteflow (MGD): TSS (mg/1): pH (SU): Cadmium (mg/1): Chromium (mg/1): Copper (mg/1): Nickel (mg/1): Lead (mg/1): Zinc (mg/1): Cyanide (mg/1): Silver (mg/1): Phenols (.tg/1): TTO: Oil & Grease (mg/1): Recommended Limits Wasteflow (MGD): TSS (mg/1): pH (SU): Cadmium (mg/1): Chromium (mg/1): Copper (mg/1): Nickel (mg/1): I Pad (mg/1): Zinc (mg/1): Cyanide (mg/1): Silver (mg/1): Phenols (µg/1): TTO: Oil & Grease (mg/1): Chlorine (j.tg/1): TOXICS/METALS/CONVENTIONAL PARAMETERS Acute Toxicity (Fathead Minnow):Pass/Fail 90% 90% SEP DEC MAR JUN Mo. Avg. 0.030 31 6-9 1.71 2.07 2.38 0.43 1.48 0.65 0.24 Monthly Average 0.030 31 6-9 1.71 2.07 ,r. -b 0.43 1.48 0.65 0.24 monitor Limits Changes Due To: Change in 7Q10 data Change in stream classification Relocation of discharge Change in wasteflow New pretreatment information Other (onsite toxicity study, interaction, etc.) Daily Max. 60 6-9 0.120 2.77 3.38 3.98 0.69 2.61 1.20 0.43 300 2.13 Daily Max. WQ or BPT BPT BPT_ tijrf BPT BPT BPT BPT BPT BPT BPT WQ BPT BPT WQ or BPT 60 BPT 6-9 BPT 0 tug 2.77 BPT 3.38 BPT 0.69 BPT 2.61 BPT 1.20 BPT 0.43 BPT monitor 2.13 BPT BPT 52 parameter(s) Affected Ni (data indicated only monitoring needed, all BDL reported); Phenols (change in stream class); ca (t4/c.,/.ato, Parameter(s) are water quality limited. For some parameters, the available load capacity of the immediate receiving water will be consumed. This may affect future water quality based effluent limitations for additional dischargers within this portion of the watershed. OR _X_ No parameters are water quality limited, but this discharge may affect future allocations. 3 INSTREAM MONITORING REQUIREMENTS Upstream Location: 50 ft. upstream of discharge Downstream Location: 50 ft, downstream of discharge Parameters: Temperature Special instream monitoring locations or monitoring frequencies: MISCELLANEOUS INFORMATION & SPECIAL CONDITIONS Adequacy of Existing Treatment Has the facility demonstrated the ability to meet the proposed new limits with existing treatment facilities? Yes No If no, which parameters cannot be met? Would a "phasing in" of the new limits be appropriate? Yes No If yes, please provide a schedule (and basis for that schedule) with the regional office recommendations: If no, why not? Special Instructions or Conditions Wasteload sent to EPA? (Major) (Y or N) (If yes, then attach schematic, toxics spreadsheet, copy of model, or, if not modeled, then old assumptions that were made, and description of how it fits into basinwide plan) Additional Information attached? (Y or N) If yes, explain with attachments. • Facility Name M-B Industries Permit # NC0000311 _ Pipe # 001 _ ACUTE TOXICITY PASS/FAIL PERMIT LIMIT (QRTRLY) The permittee shall conduct acute toxicity tests on a quarterly basis using protocols defined in the North Carolina Procedure Document entitled "Pass/Fail Methodology For Determining Acute Toxicity In A Single Effluent Concentration." The monitoring shall be performed as a Fathead Minnow (Pimephales promelas) 24 hour static test, using effluent collected as a 24 hour composite. The effluent concentration at which there may be at no time significant acute mortality is 90% (defined as treatment two in the North Carolina procedure document). Effluent samples for self -monitoring purposes must be obtained during representative effluent discharge below all waste treatment. The first test will be performed after thirty days from the effective date of this permit during the months of SEP DEC MAR JUN All toxicity testing results required as part of this permit condition will be entered on the Effluent Discharge Monitoring Form (MR-1) for the month in which it was performed, using the parameter code TGE6C. Additionally, DEM Form AT-2 (original) is to be sent to the following address: Attention: Environmental Sciences Branch North Carolina Division of Environmental Management 4401 Reedy Creek Road Raleigh, N.C. 27607 Test data shall be complete and accurate and include all supporting chemical/physical measurements performed in association with the toxicity tests, as well as all dose/response data. Total residual chlorine of the effluent toxicity sample must be measured and reported if chlorine is employed for disinfection of the waste stream. Should any single quarterly monitoring indicate a failure to meet specified limits, then monthly monitoring will begin immediately until such time that a single test is passed. Upon passing, this monthly test requirement will revert to quarterly in the months specified above. Should any test data from either these monitoring requirements or tests performed by the North Carolina Division of Environmental Management indicate potential impacts to the receiving stream, this permit may be re -opened and modified to include alternate monitoring requirements or limits. NOTE: Failure to achieve test conditions as specified in the cited document, such as minimum control organism survival and appropriate environmental controls, shall constitute an invalid test and will require immediate retesting(within 30 days of initial monitoring event). Failure to submit suitable test results will constitute noncompliance with monitoring requirements. 7Q10 27.9 cfs Permitted Flow 0.030 _ MGD IWC 0.17 0l0 Basin & Sub -basin FRB01 Receiving Stream West Fork French Broad R. County Transylvania mmended by: th9195____ /7411 QAL P/F Fathead 24 Version 9/91 Page 1 Note for Carla Sanderson From: Jackie Nowell Date: Wed, Oct 11, 1995 11:31 AM Subject: M-B INDUSTRIES To: Carla Sanderson Per Dave's comments on the factsheet: 1) Ni limit was given per guideline 2) In this case we are recommending monitoring of phenols based on narrative for Class C waters for protection against fish flesh tainting. The predicted phenols value exceeds the allowable and if this was a WS class stream a limit would be given. Based on the Tr designation of the WF French Broad and for protection of the fish, I recommended the continuation of at least monitoring for phenols. 3) Reviewed the instream data and overall the instream temp. cap of 20C for Tr class has not been exceeded, however there were a couple of summer months where the avg was 18-19C. Only had one downstream value above 20C . Again for the protection of the Tr and HQW designations, I don't think that continued instream monitoring for temperature would present an undue hardship to the discharger. Mitchell- Bissell Industries JMN West Fork French Broad River C Tr HQW 8/29/95 040301 Facility is requesting renewal of NPDES permit 100% Industrial Wastewater. BPT Effluent Guidelines for Cd, Cr, Cu, Pb, NI, Ag, Zn,Cn, phenols, TTO, Oil & Grease, TSS, pH were previously limited. Phenols limits based on previous class of stream as WS- III Tr HQW. 40 CFR 433.13 - Metal Finishing, Type of Product Produced: Metal Forming, stamping and finishing. Company makes sewing machine thread guides. Involves chrome plating and burnishing of chrome parts. Compliance Data Review - Facility average Qw = 0.019 MGD. Following parameters reported most times as less than detectable in the period from (6/94 - 5/95), however there are months when values are recorded . # Months <DL in 0, CN (7), Cd (7), Cu (4), Pb (7), Ni (8), Ag(5). One violation of permit limit, Cr limited @a 1.71 #/d, mo. avg. of 6.14 #/d in 11/94.Oil & Grease limit exceeded in 8/93. ARO Staff Report - Recommends renewal of Permit. Noted that treatment process modifications and upgrades of monitoring equipmenmt for chemical processes, and installation of alarm systems have reduced the likelyhood of spills reaching the river. Toxicity Analysis - Previous has acute monitoring for two years, after which, the facility would go to an acute tox P/F. Will renew acute tox P/F limit. Reviewed DMR data from 1994 thru May, 1995. DMRs had most data as none detected (ND). No detection levels were given at all. Had to call ORC, Edward Corey to get actual detection levels for each parameter in order to do tox analysis. Not detected could have been considered a 0 value and the evaluation could not have been done. The detection levels are as follows: CN 0.002 (all in mg/1) Phenols 0.025 Cd 0.01 Cr 0.020 Cu 0.01 Pb 0.100 Ni 0.050 Ag 0.010 Zinc 0.010 O&G 1.0 TSS 1.0 Lab used is Pace Laboratories in Asheville. Ni - all 32 observations are BDL, predicted value < 1/100 of allowable Cd and Pb, 31 0f 32 observations are BDL. Cd predicted value < 1/10 of allowable. Pb predicted value < 1/100 of allowable Cn - 28 of 32 obs are BDL. Cn predicted value < 1/100 of allowable Zn - predicted value < 1/10 of allowable Cu - 22 of 32 values BDL. Cu predicted value < 1/10 of allowable. Mitchell- Bissell Industries page 2 Cr - Predicted value > 1/10 of allowable Ag - 27 of 32 values BDL/ Max.predicted Cw > allowable. Limit is needed. Since Ag is an action level will recommend renewal of existing guideline limit. Phenols- previously recommended to be limited because WLA indicated that receiving stream was WS class. This was either erroneous or the class has changed, new WLA shows class as C TR HQW. However, there is a narrative "standard" for phenols in Class C waters that states "only such levels as will not result in fish -flesh tainting or mpairment of other best usage. The receiving stream is also designated for trout . Phenols limit applicable only given in WS class waters. Would like to continue phenols limit since the predicted value exceeds the allowable conc. of 601 µg/1 for the 1 µg/1 standard for WS and if protection from fish -flesh tainting is the criteria for protection then this exceedance could taint fish. Reviewed the Toxicological Profile for Phenol by Agency for Toxic Substances and Disease Registry. U.S. Public Health Service . States that phenol found in aluminum forming industry in the final effluent in concentration of 1.3 ppm (mean value) and 9.7 ppm (max. value).(page 70) As found in other media, (not water, air, soil) phenols had been found in bottomfish from five sites in Commence Bay in Washington (page 71), @ the highest max. and overall max. concentration of 0.14 ppm and 0.22 ppm, respectively. Telecon with Mark Hale of ESB -- Recommendation. Because of the HQW class of the facility will recommend renewal of existing limits with some modification. Will recommend monitoring for Ni since all the values are below detection. Will recommend renewal of all other limits for the protection of the HQW status. Although the tox analysis indicates that several of the parameters can be monitored or have the limit rescinded, will continue to recommend the effluent guidelines for this type of industry. ��^^ /C/(T/2/A- »t 60,1-4 /- Q4,4, drr, 6)4clek_ s�- TOXICANT ANALYSIS Facility Name MB Industries NPDES # NC0000311 Ow (MGD) 0.03 7Q lOs (cfs) 27.9 !WC(%) „_.._.._.._.._.._.._. . ---- 0.17 Rec'virrg Stream WF French Broad River Stream Class C Tr HOW FINAL RESULTS CN Max. Pred Cw 11 ug/I Allowable Cw 3005.0 ug/I Max. Value 5 PHENOLS Max. Pred Cw 975 ug/I ug/I Allowable Cw 601.0 Max. Value 325 CD Max. Pred Cw 6 ug/I Allowable Cw 240.4 ug/I Max. Value 5 CR Max. Pred Cw 6766 ug/l ug/I Allowable Cw 30050.0 Max. Value 1990 CU Max. Pred Cw 57.2 ug/l Allowable Cw 4207.0 ug/I Max. Value 26 PB Max. Pred Cw 143 ug/I Allowable Cw 15025.0 ug/I Max. Value 110 NI Max. Pred Cw 25 ug/I Allowable Cw 52888.0 ug/I Max. Value 25 AG Max. Pred Cw 38 ug/I Allowable Cw 36.1 ug/I Max. Value 19 ZN Max. Pred Cw 1578.2 ug/I Allowable Cw 30050.0 ug/I Max. Value 607 /1,4Lc4 L/to fritcv.ifrgit, frt.,..f t} 2Z 1r 32- FDL- 3l 32. QDL- p/ roo ll >t, ALI BDL 19/atc Yo 4 IIWw41.1C z? 3z /3vc. Light /Kato,. �cicl,Nc (tc.►,-.Mt.,,1 /t!z%rd < yr A11 4►c. 8/29/95 PAGE Fadlity: MB Industries NPDES#: N00000311 Receiving Stream: WF FRENCH BR Comment(s): Low Flow Record Station Number: Hydrologic Area Number: Drainage Area Low Flow Record Station: Qave Low Flow Record Station: s7010 Low Flow Record Station: w7Q10 Low Flow Record Station: 3002 Low Flow Record Station: Drainage Area New Site: MAR New Site: Qave per Report Equation: s7010 per Report Equation: w7010 per Report Equation: 3002 per Report Equation: Drainage Area Ratio: [ now DA/Daatgage I Weighted Ratio: Override Inappropriate Site (y ): gage number not available HA10 29.40 miles squared 100.00 cfs 25.00 cfs 28.00 cfs 36.00 cfs must be < 400 sq. miles 27.20 sq. miles 3.0 cfs/miles squared 82 cfs 13.22 cfs 19.68 cfs 28.07 cfs Continue 0.93 :1 Continue 0.90 :1 Drainage Area New Site: MAR New Site: Weighted Qave per Report Equation: Weighted s7Q10 per Report Equation: Weighted w7Q10 per Report Equation: Weighted 3002 per Report Equation: 27.20 miles squared 3.0 cfs/miles squared 82 cfs 22.14 cfs 25.28 cfs 32.78 cfs SOC PRIORITY PROJECT: Yes No XX IF YES, SOC NUMBER TO: PERMITS AND ENGINEERING UNIT WATER QUALITY SECTION ATTENTION: Jay Lucas DATE: July 24, 1995 NPDES STAFF REPORT AND RECOMMENDATION COUNTY Transylvania PERMIT NUMBER NC0000311 PART I - GENERAL INFORMATION 1. Facility and Address: Mitchell -Bissell Industries Mailing: POB 1118 Rosman, North Carolina 28772 2. Date of Investigation: June 14, 1995 3. Report Prepared By: Kerry S. Becker 4. Persons Contacted and Telephone Number: Edwin Morrow 704-862-4201 5. Directions to Site: The plant is located on U. S. Hwy. 64 approximately 2 miles west of Rosman, NC. 6. Discharge Point(s), List for all discharge points: Latitude: 350 08' 15" Longitude: 82° 51' 00" Attach a USGS map extract and indicate treatment facility site and discharge point on map. U.S.G.S. Quad No. 185-NE U.S.G.S. Quad Name Rosman, NC 7. Site size and expansion area consistent with application? _x_ Yes No If No, explain: 8. Topography (relationship to flood plain included): Flat, adjacent to and within the flood plain of the West Fork French Broad River. Page 1 Page 1 9. Location of nearest dwelling: >100 ft. 10. Receiving stream or affected surface waters: W. Fk. French Broad River a. Classification: C Tr HQW b. River Basin and Subbasin No.: 04-03-01 c. Describe receiving stream features and pertinent downstream uses: The receiving stream is used extensively for fishing and serves as habitat for the propagation and maintenance of aquatic and wildlife. PART II - DESCRIPTION OF DISCHARGE AND TREATMENT WORKS 1. a. Volume of wastewater to be permitted Pipe 001: 0.030 MGD (Ultimate Design Capacity) Pipe 002: Non -contact cooling H2O b. What is the current permitted capacity of the Wastewater Treatment facility? 0.030 MGD c. Actual treatment capacity of the current facility (current design capacity 0.030 MGD d. Date(s) and construction activities allowed by previous Authorizations to Construct issued in the previous two years: None within the past two years. e. Please provide a description of existing or substantially constructed wastewater treatment facilities: The existing facility consist of a physical/chemical type wastewater treatment plant involving pH adjustment for the removal of various metals and for permit requirements. f. Please provide a description of proposed wastewater treatment facilities: None proposed. g• Possible toxic impacts to surface waters: Heavy metals h. Pretreatment Program (POTWs only): in development should be required approved not needed 2. Residuals handling and utilization/disposal scheme: Residual solids are dewatered and shipped to a hazardous waste landfill. a. If residuals are being land applied, please specify DEM Permit Number Residuals Contractor Telephone Number Page 2 • b. Residuals stabilization: PSRP PFRP OTHER C. Landfill: d. Other disposal/utilization scheme (Specify): 3. ' Treatment plant classification (attach completed rating sheet) :Class II 4. SIC Codes (s) : 3471 Wastewater Code (s) : Primary 57 Secondary 14 Main Treatment Unit Code: 511-2 PART III - OTHER PERTINENT INFORMATION 1. Is this facility being constructed with Construction Grant Funds or are any public monies involved. (municipals only)? N/A 2. Special monitoring or limitations (including toxicity) requests: None 3. Important SOC, JOC, or Compliance Schedule dates: (Please indicate) N/A Submission of Plans and Specifications Begin Construction Complete Construction Date 4. Alternative Analysis Evaluation: Has the facility evaluated all of the non -discharge options available. Please provide regional perspective for each option evaluated. Sufficient land is not available for the non -discharge options mentioned. The Town of Rosman's sewage collection lines have not reached M-B Industries. Spray Irrigation: Connection to Regional Sewer System: Subsurface: Other disposal options: 5. Other Special Items: Page 3 PART IV - EVALUATION AND RECOMMENDATIONS Mitchell -Bissell Industries has maintained compliance with respect to NPDES permit limits and toxicity for the past year. Modifications to the treatment process as well as upgrading of monitoring equipment regulating chemical processes and the installation of alarm systems have enhanced the facility's ability to treat the waste streams and reduce the liklihood of spills reaching the river. It is recommended that NPDES Permit #NC0000311 be renewed. 7 Si natu e 4R,L, g of Report Preparer ater Quality Regional Supervisor Page 4 4•.ra.cvwrw.s....a vie....... • RATING SCALE FOR CLASSIFICATION OF WATER POLLUTION CONTROL SYSTEMS Name of Facility: Al- 3 i NdJJtt.S1 Owner or Contact Person: JW i /hpa, enAi Mailing Address: ?-0 . �X in 7 P7)514447/ ,MC 2 8 7? 2 County: / 44-AisyN4--Al_./... New Facility Existing Facility NPDES Per. No. NCO() Rated by: /" Reviewed by: //` Nondisc. Per. No.WQ Health Dept.Per No. Telephone: 7a5/- 7 Ste/ -6.zde' Date: 7 ORC: fa( &Let, (1 Regional Office Central Office Grade: Check Classification (s): Subsurface Spray Irrigation Wastewater Classification: (Circle One) I 723 III IV Health Dept. Telephone: Telephone: toe!-Mit-Or Telephone: Telephone: 70 S- r6A-1 j/ Land Application Total Points: 3 / jai -PLANT PROCESSES AND RFIATED CONTROL SOUIPME NJ WHICH ARE AN INTEGRAL PART OF_INQUSTRIAL PRQD.UCT1ON9jg(INOT BE CONSIDERED WASTE TREATMENT FOR THE PURPOSE9F CLASSIFICATION. ALSO SEPTIC TANK SYZEINS CONSISTING ONLY OF s5PT1C TANK AND GRAVITY NITRIFICATION LINES ARE EXEMPT FROM CLASSIFICATION. SUBSURFACE CLASSIF1CA710N (check all units that apply) 1. septic tanks 2. pump tanks 3siphon 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 IRRIGATION CLASSIFICATiON (check all units that apply) preliminary treatment (definition no. 32 ) 2. lagoons 3. septic tanks 4_ pump tanks 5. pumps 6_ sand filters 7_ grease trap/interceptor, 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.dassification, 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) 1. OiVwater Separator Systems consisting only of physical separation, pumps and disposal; 2. Septic Tank/Sand Filter 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; Closed -loop Recycle Systems; _Groundwater Remediatlon Systems consisting only of olVwater separators, pumps, air -stripping, carbon adsorption, disinfection and disposal; 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. • 1 he following scale is used for rating wastewater treatment facilities: (circle appropriate points) ITEM POINTS (1) industrial Pretreatment Units or Industrial Pretreatment Program (see definition No. 33) 4 (2) DESIGN FLOW OF PLANT IN gpd (not applicable to noncontaminated cooring waters. sludge handling facilities for water purification plants. totally closed cycle systoms(see definition 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 50.001 - 100.000 100.001 • 250.000 4 250.001 - 600.000 5 500.001 - .1,000.000 .8 1.000.001 - 2.000.000 10 2.000.001 (and up) ra e 1 poinciadditlonal for each 200.000 gpd capacity up to a maximum of 30 Design Flow (gpd) OOV (3) PRELIMINARY UNITS/PROCESSES ( definition No.32) (a) Bar Screens 1 or (b) Mechanical Screens. Static Screens or Comminuting Devices 2 (c) Grit Ronxnral 1 or (d) Mechanical or Aerated Grit Removal (e) Flow Measuring Device 1 or . (I) Instrumented Flow Measurement 2 (g) Preaeratlon 2 (h) Influent Flow Equalization 2 (i) Grease or Oil Separators - Gravity 2 Mechanical 3 Dissolved Air Flotation .8 (]) Prechlortnallon .5 (4) PRf6AARYTREATMEYT LNITS/PF CESSES (a) Septic Tank (see definition No. 43) .... 2 (b) lmholf Tank. 5 (c) Primary Clarifiers 5 (d) Settling Ponds or Settling Tanks for Inorganic Nontoxic Materials (sludge handling facilities for water purification plants, sand. gravel. stone. and other mining operations except recreational activities such as gem or gold mining) 2 (5) SECONDARY TREATMENT UNITS/PROCESSES (a) Carbonaceous Stage (1) Aeration -High Purity Oxygen System. 20 Diffused Air System 10 Mechanical Air System (fixed, floating or rotor) .8 Separate Sludge Reaerallon 3 (iI) Trklding Filter High Rate ._... 7 Standard Rate »». .5 Packed Tower .5 (11i) Biological Aerated Filter or Aerated Biological Filter »...»»»...».»» ....... ........ »»».»».....».»».10 (Iv) Aerated Lagoons ...»-... 10 (v) Rotating Biological Contactors 10 (v1) Sand Filters -Intermittent biological 2 Recirculating biological 3 (vil) Stabilization Lagoons (vif) Clarifier 5 (ix) Single stage system for combined carbonaceous removal of BOD and nitrogenous removal by nitrification (see definition No. 12)(Potnts for this item have to be in addition to items (5)(a)(I) through (5)(a)(vill). . utilizing the extended aeration process (see definition No.3a) • utilizing other than the extended aeration process. 8 (x) Nutrient additions to enhance BOD removal • S • (xl) Biological Culture (-Super Bugs•)additlon 5 (b) Nitrogenous Stage (i) Aeration • High Purhy Oxygen System............—.---- .......... ............------- .......... ....20 Diffused Air System ... 10 Mechanical Air System (fixed. floating or rotor)............ ....... ......»...»........ »..... ...................8 Separate Sludge Reaeratlon ... 3 (II) Trickling Flier -High Rate ..-- ... 7 Standard Rate ._....... 5 Packed Tower 5 (III) Biological Aerated Filter or Aerated Biological Flher.»...»..... .....»».»»...»...... »»...»...... »...».10 (iv) Rotating Biological Contactors .».-». 10 (v) Sand Filter - Intermittent biological— 2 Recirculating biological ». 3 (v1) Clarifier .5 (6) TERTIARY OR ADVANCED TREATMENTUMS/PROCESSES (a) Activated Catbon Beds - without carbon regeneration .5 with carbon regeneration ... 15 (b) Powdered or Granular Activated Carbon Feed • - without carbon regeneration• .S with carbon regeneration , 15 (c) Air stripping 5 (d) Denhrtfkatton Process 10 (0) Electrodlalysls ». .... .5 (f) Foam Separation. 5 (g) Ion Exchange .5 (h) Land Application of Treated Etfluent (see definition No. 22b) (not applicable for sand. gravel. stone and other similar mining operations) by high rate infiltration ...... »...».. ........4 (i) Mkroscreens 5 (]) Phosphorous Removal by Biological Processes (See definition No. 26) 20 (k1 Polishing Ponds • without aeration 2 2 tr 1 • (I) Post Aeration - cascade 0 dillused or mechanical 2 (m) Reverse Osmosis .5 (n) Sand or Mixed -Media Filters • low rate 2 • high rate (o) Treatment processes for removal of metal or cyanide (p) treatment processes for removal of toxic materials other than metal or cyanide (7) SLUDGE TREATMENT (a) Sludge Digestion Tank • Heated (anaerobic) 10 Aerobic 5 Unheated (anaerobic) 3 (b) Sludge Stabitlzation (chemical or thermal) S (c) Sludge Drying Beds - Gravity 2 Vacuum Assisted .•••• 5 (d) Sludge Etutrlation 5 (e) Sludge Conditioner (chemical or thermal) .5 (1) Sludge Thickener (gravity) .5 (g) Dissolved Alr Flotation Unit (not applicable to a unit rated as (3)(in 8 (h) Sludge Gas Utilization (including gas storage) 2 (I) Sludge Holding Tank - Aerated Non -aerated (j) Sludge Incinerator (not Including activated carbon regeneration) (8) (k) Vacuum Filter, Centrifuge. or Filter Press or other similar dewatering devices 'RESIDUALS UTILIZATION/DISPOSAL (including incinerated ash) (aLaoons b) Land Application (surface and subsurface) (see definition 22a) by contracting to a land application operator or landfill operator who holds the land application permit or landfill permit 2 10 10 2 (c) Oedtcated Landfitt(budal) by the permtttee of the wastewater, treatment facility OtSt•FECT1CN (a) Chlorination (b) Dechlortnation (c) Ozone (d) Radiation CHEMICAL A0DITiON SYSTEM(S) ( see definition No. 9) (not applicable to chemical additions rated as hem (3)(1). (5)(a)(x1). (6)(a). (6)(b). (7)(b). (7)(e). (9a). (9)(b) or (9)(c) 5 points each: .5 List .5 5 5 5 5 5 5 5 (1 1) M1SCt3LANEWUS UNiTS/PROCESSES (a) Holding Ponds. Holding Tanks or Settling Ponds for Organic or Toxic Materials Including wastes from mining operattbns containing nitrogen or phosphorus compounds in amounts significantly greater than is common for domestic 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)..-.--........-...— .... .. (d) Pumps (0) Stand -By Power Supply (I) Thermal Pollution Control Device TOTAL POINTS, CIASSt1=iCATICN Class I 5-25 Points Class II 26-50 Points Class If 51.65 Points Class IV s mule- ..1.kt--.0.c66—.41;_f_P.sak Facilities having a rating of one through four points. Inclusive. do not require a codified opera!bf. Facilities having an activated sludge process will be assigned a minimum classification of Class IL Facilities having treatment processes for the removal of metal or cyanide will be assigned a minimum classification of Class II. Facilities having treatment processes for the biological removal of phosphorus will be assigned a minimum classification of Class IiI. 66•U �l.« n r `I p % vtr/ G JLIAJLLDints .0004 DEFINITIONS The following definitions shall apply throughout this Subchapter. (1) Activated Carbon Beds. A physlcaVchemical 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 downtlow carbon beds. Carbon may or may not be regenerated on the wastewater treatment plant she; (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 flow -through basls; . (3) Aeration. A process of bringing about intimate contact between air or high purity oxygen In a ttquld by spraying. agitation or diftuslon;(3a) Extended Aeration. An activated sludge process utilizing a minimum hydraulic detention time of 18 hours. (4) Agriculturally managed site. Any she on which a crop is produced. managed. and harvested (Crop Includes grasses. grains. trees. etc.); (5) Air Strapping. 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 Regeneration. The regeneration of exhausted carbon bythe use of a furnace to provide extreme high temperatures which volatilize and oxidize the t;O eg reg P by g mP ,i, absorbed impurities; ?t' (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 different densiraas; ; (9) Chemical Addhlon Systems- The addition 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 different chemicals and different application points to achieve a specific result will be considered one it to add chemicals to dual units will be rated as one system; capability to add a chemical at a different application points for different -;•r;, .r,_ system: the capability () Y �b hY t, purposes will resull In the systems being rated as separate systems; • (10) Chemical Studge,Condhlon ing. 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 dewatortng device; .' :i (11) Closed Cycle Systems. Use of holding ponds or holding tanks for containment of wastewater containing Inorganic. nontoxic materials from sand. gravel. L'I c.:.•:: crvshibd stone or other similar ooeratlons• Such systems shall carry a maximum of two points regardless of pumping facilities or any other appurtenances;