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State Pretreatment Program Update

Deborah GorePretreatment, Emergency

Response & Collection System Supervisor

September 28, 2015

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The Numbers 110 Active PT programs

80 Full 30 Modified

645 Active SIUs 34% Metals 14% textile 11% food processors 5 % pharmaceuticals 5% laundries 4% OCPSF

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PERCS Accomplishments 9/1/14-8/31/15:

Assisted w/ 8 audits 264 IUP drops, mods, renewals, new 7 ERPs 30 HWAs 29 IWSs 25 Monitoring Plans 2 SUOs 15 NPDES request for PT information

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PERCS Accomplishments Two - Industrial User Permit

Writing Workshops (IUP) Two - Pretreatment Annual Report

Workshops (PAR) Two - Headworks Analysis

Workshops (HWA)

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Assignments & Contact Info. Monti Hassan 919-807-6314

Chowan, Hiwassee, Little Tennessee, Lumber, Neuse, New, Roanoke, Yadkin

Sarah Bass 919-807-6310 Broad, Cape Fear, Catawba ,French Broad,

Tar-PamEmail: FirstName.LastName@ncdenr.gov

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Enforcement QNCR = Quarterly Noncompliance

Report

Level 1 Failure to take effective enforcement for

pass through or interference Failure to submit (over 30 days late) Failure to meet milestone (over 90 days

late)

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Enforcement Level 2

Failure to issue IUPs for at least 90% Failure to sample or inspect at least 80% Failure to enforce standards or reporting

requirements Any other violation that State or EPA

considers to be of substantial concern

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Enforcement 5 Program on QNCR over past year

Failure to renew IUPs Failure to submit PAR Failure to take adequate enforcement Failure to submit HWA Failure to sample SIUs Failure to submit information within 30

days

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Mercury Creates Dental Industrial User

99.0% removal of total mercury Incorporate BMPs Submit Baseline Report, 90-day

Compliance Report, annual compliance report

Maintain documentation of inspection, cartridge replacement and disposal

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Mercury POTW evaluates DIU status

annually 90 days to return to compliance

Becomes SIU

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Mercury Comments submitted

Natural decline in use Dental contributions 0.3 – 0.7% $57,000/lb to over $117,000/lb Processes in place 23 new programs or State oversight of

~360 dental dischargers NC-PC presented data

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Mercury EPA delays rule until summer 2016

State groups, such as the NC-PC, revealed inadvertent regulatory burden on POTWs and dental offices

Oversight concerns among states, such as North Carolina and Oregon

Ryan Faw urged EPA to withdraw rule No evidence of POTW violations of Hg limits Point sources are only 2%

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Zirconization Draft Zirconization memo from EPA

Office of Water Concluded it is a coating process Industry literature

Zirconium oxide conversion coating A future conversion coating Non-phosphate conversion “…pretreatments work by passivating the

substrate”

Zirconization

Process launched in 2008 Low temperature (energy savings) High efficiency (less chemical

consumption) Phosphate free Lower sludge production

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Zirconization May 2009 memo from EPA Office of

Resource Conservation and Recovery Not chemical conversion coating within

meaning and scope of the F019 listing Chemical conversion includes

Coloring Chromating Phosphating

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Zirconization NC-PC comments

Operations named for a reason Difference of opinion among EPA offices Less environmental impact

PERCS comments Evaluate pollutants of concern

Conference call Study of metal finishing industry

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Triennial Review & HWA Stream Standard?

Receiving Receiving Receiving NPDES Total Combined Instream Instream 8-digit HUC Effluent

Stream Stream Stream Flow Limit

Suspended Hardness Wastewater Wastewater Hardness Hardness

summer summer 1Q10 [MGD] Solids [mg/l] Concentration Concentration Concentration

7Q10 7Q10 [MGD] [mg/l] (Chronic) (Acute)(CFS) (MGD)

0.84 0.71 10 56.19 0.94 0.95

Table A

1.30 14.00 26.00 58.00Table B 

 

Dissolved

US EPA Translators

-Maximum Total

Metals Allowable Class C, C-NSW

  HQW streamsMetals

using Default

Partition Coefficients (streams)

[Dissolved Metal ÷ Translator] C-Swamp, B.

      and WS streams      Estimated NPDES Estimated NPDES      Permit Limits (e) Permit Limits (e)

     [Total Metal ÷

IWC][Total Metal ÷

IWC]Chronic Acute   Chronic Acute Chronic Acute Chronic Acute

PARAMETER * [µg/l] [µg/l]   [µg/l] [µg/l] [µg/l] [µg/l] [µg/l] [µg/l]

Cadmium (a) 0.27 1.66 0.252 1.09 6.57 1.15 6.9

 

0.58 3.45   Cd - Trout streams (a)   1.03 0.252  4.08  4.29   2.15Chromium III (a) 46 355 0.202 229 1757 242.2 1845.8 121.1 922.9Chromium VI 11 16 1 11 16 11.7 16.8 5.8 8.4Chromium, Total N/A N/A N/A N/A N/A N/A N/A N/A N/ACopper (a,b) 5.5 7.8 0.348 15.7 22.5 16.7 23.6 8.3 11.8Lead (a) 1.34 34 0.184 7.27 186 7.7 195.9 3.85 98Nickel (a,c) 32 288 0.432 74 665 78.3 698.7 39.1 349.4   Ni - WS streams       25  26.5  13.2 Silver (a,b) 0.06 1.19 1 0.06 1.19 0.06 1.25 0.03 0.63Zinc (a,b) 72 72 0.288 252 250 266.8 262.3 133.4 131.1Dissolved Metals that are not hardness dependent - proposed standards the same or greater than existing standards  Beryllium 6.5 65 1 6.5 65 6.9 68.3 3.4 34.1Arsenic (d) 150 340 1 150 340 159 357.2 79.5 178.6

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NCAC 2H .0900 Pretreatment Rules

.0903 Definitions Delete Industrial User and Pass Through Some terms are defined differently

Interference National Categorical Pretreatment Standard National Pretreatment Standard POTW Pretreatment Significant Industrial User

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NCAC 2H .0900 Pretreatment Rules

.0908 Reporting/Record Keeping Including, but not limited to examples

include .0916 Pretreatment Permits

Deleted waste reduction activities in application

Modification of permits .0920 Pretreatment Facility Operation

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Effluent Guidelines Program Plan

http://www2.epa.gov/eg/effluent-guidelines-plan Release 2014 review report Continue studies/investigation

Petroleum Refining Centralized Waste Treatment Metal Finishing Pesticide Manufacturing

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Effluent Guidelines Program Plan

Restate rulemaking schedules Steam Electric Power Generation Dental Amalgam Alaska Seafood Processing Unconventional Oil and Gas Extraction

Publish findings & continue research of Industrial Wastewater Treatment

Technology Nanomaterials Manufacturing & Product

Formulation

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Contact Pretreatment Deborah Gore – PERCS Unit Supervisor

919-807-6383 PERCS Fax # 919-807-6489  Main DWQ Archdale Phone #: 919-807-

6300 Email: firstname.lastname@ncdenr.gov Web site:

http://portal.ncdenr.org/web/wq/swp/ps/pret

Thank You!

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Triennial Review & HWA

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From EPA local limits guidance POTWs should convert dissolved

metals WQS into the total metals form before using them to calculate water quality-based AHLs.

40 CFR 122.45 (c) requires NPDES permits be written as Total Metals

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Example (current WQS) Permitted flow = 14 MGD Average flow = 7.51 MGD 7Q10 = 0.84 MGD (1.3 CFS) Uncontrollable flow = 6.3258 MGD Cd limit = 0.002 mg/l NPDES MAHL = 0.3796 lb/d

[8.34 * 0.002 mg/l * 7.51 MGD/(1 - .67)]

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Example (current WQS) Stream standard = 0.002 mg/l Stream MAHL = 0.4221 lb/d[8.34 * 0.002 mg/l * (7.51 MGD + 0.84 MGD)/(1-.67)]

Avg flow = Permitted flow (14 MGD) NPDES MAHL = 0.7076 lb/d Stream MAHL = 0.7501 lb/d

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Screen shot of Proposed Dissolved Metals & Permit Limit Calculators

Calculator 1 Calculator 2

This calculator estimates Total Recoverable Metal Permit Limitations for dissolved metals using a hardness of 25 mg/ L, expressed as CaCO3 or Ca+Mg. This is proposed to be the lower boundary of the applicable hardness and therefore should provide conservative permit limit estimates.

This calculator estimates Total Recoverable Metal Permit Limitations for dissolved metals using a combined hardness based on the permittee's 8-digit HUC hardness and a facility's effluent hardness. A default hardness of 25 mg/ L is used if the mass balance of the combined hardness data is less than 25 mg/ L.

Needed: Needed:NPDES permitted flow (MGD) NPDES permitted flow (MGD)Receiving stream's summer 7Q10(cfs) Receiving stream's summer 7Q10(cfs)

HUC Hardness(mg/ L)Facility effluent hardness(mg/ L)

Go to Facility Information on NPDES Permittees to access data on a facility's NPDES Permitted Flow, Receiving Stream's 7Q10 and 8-Digit HUC. Facility information should be verified with the Permittee's current NPDES permit.

If your facility is not listed, look on your permit or fact sheet to get your facility's NPDES Permitted Flow and 7Q10 information.

Go to 8-Digit HUC Hardness to retrieve median HUC hardness data.

These calculators are NOT intended for saltwater, lake or stormwater discharges.

Stormwater discharges go to: Stormwater Permiting Unit

Proposed Dissolved Metals & Permit Limit Calculatorsv. 4/ 25/2014

This website has been developed to provide NPDES permitting information to enable Permittees to assess the economic impact of the proposed dissolved metal standards based on estimated permit limits and implementation guidelines.

The purpose of the Calculators are to help Municipal and Industrial Permittees estimate NPDES Permit Limitations based on the proposed Dissolved Metal Standards for freshwater streams. These calculations are based on current NPDES implementation policies and are subject to change as the regulations proceed through the Administrative Procedures Act process. Complete information on all the proposed Surface Water Quality Standards can be viewed at: http://portal.ncdenr.org/web/wq/ps/csu/swtrirev. Only the Surface Water standards applicable to dissolved metals are addressed in the calculator spreadsheets.

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Permit Number Facility Name

Permitted Flow (MGD)

Summer_7Q10 (cfs)

Summer_7Q10 (MGD)

8-digit HUC Current_Class Waterbody

NC0020559 Henderson WRF 6.0000 0.2000 0.13 03010102 B Nutbush Creek

NC0001643 MGM Transport WWTP 0.5000 370.0000 239.12 03010103 WS-IV DAN RIVER (North Carolina portion)

NC0003441 Carolina Plant 0.0150 3.3000 2.13 03010103 C Tr Little Dan River

NC0003468 Dan River Steam Station 0.0000 314.0000 202.93 03010103 WS-IV DAN RIVER (North Carolina portion)

NC0021873 Mayodan WWTP 2.5000 75.0000 48.47 03010103 WS-V Mayo River

NC0024406 Belews Creek Steam Station 0.0000 80.0000 51.70 03010103 C West Belews Creek (Little Belews Creek)

NC0025071 Mebane Bridge WWTP 13.5000 386.0000 249.46 03010103 WS-IV DAN RIVER

NC0025151 Dry Creek WWTP 1.0000 313.0000 202.28 03010103 WS-IV DAN RIVER

NC0025526 Walnut Cove WWTP 0.5000 8.9000 5.75 03010103 C Town Fork Creek

NC0029980 MillerCoors LLC 5.2000 369.0000 238.47 03010103 WS-IV DAN RIVER (North Carolina portion)

NC0037001 Bethany Elementary School 0.0100 0.0000 0.00 03010103 C Huffines Mill Creek

NC0044750 Britthaven of Madison WWTP 0.0250 1.4000 0.90 03010103 C Hogans Creek

NC0044954 South Stokes High School 0.0173 0.2700 0.17 03010103 C Little Neatman Creek

NC0056791 Horizons Residential Care Center 0.0150 0.4400 0.28 03010103 C Buffalo Creek

NC0060461 Abington WWTP 0.2000 0.2900 0.19 03010103 WS-IV Belews Creek

NC0067091 Mikkola Downs Subdivision WWTP 0.0720 0.8000 0.52 03010103 C East Belews Creek

NC0075027 Cains Way Mobile Home Park 0.0432 0.0750 0.05 03010103 C Ader Creek

NC0078271 Betsy Jeff Penn 4H Education 0.0131 0.3500 0.23 03010103 C Carroll Creek (Lake Hazel)

NC0079049 R.H. Johnson Construction WWTP 0.0600 0.0700 0.05 03010103 C Rough Fork

NC0082384 Danbury WWTP 0.1000 55.0000 35.54 03010103 WS-V DAN RIVER

NC0087980 Pine Hall Elementary School WWTP 0.0040 0.4000 0.26 03010103 Eurins Creek

NC0003425 Roxboro Steam Electric Power Plant 0.0150 0.0000 0.00 03010104 WS-II,B HQW South Hyco Creek (Lake Roxboro)

NC0007323 Yanceyville WTP 0.0000 0.0000 0.00 03010104 WS-III HQW Fullers Creek

NC0021024 Roxboro WWTP 5.0000 0.0000 0.00 03010104 C Marlowe Creek

NC0038377 Mayo Steam Electric Power Plant 21.0000 0.0000 0.00 03010104 C Mayo Creek (Maho Creek) (Mayo Reservoir)

NC0040011 Yanceyville WWTP 0.6000 1.2000 0.78 03010104 WS-II HQW Country Line Creek

NC0087645 Milton WWTP 0.0250 0.7000 0.45 03010104 Country Line Creek

NC0088731 Gypsum Wallboard Manufacturing Facility 0.0050 0.0000 0.00 03010104 Hyco River

NC0000680 Domtar Paper Company, LLC 82.5000 1160.0000 749.68 03010107 C ROANOKE RIVER

NC0000752 Roanoke Rapids Mill 28.0000 1120.0000 723.82 03010107 WS-IV ROANOKE RIVER

NC0020028 Plymouth WWTP 0.8000 950.0000 613.96 03010107 C ROANOKE RIVER

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Hardness Statistics by 8-Digit HUCNorth Carolina, 1969 - 2013

Hydrologic Unit Code N. Stations N. Samples 10th Percentile Median (50th)   Minimum Maximum

1 03010102 4 207 40 92   19 2102 03010103 16 823 17 22   0 1203 03010104 22 1004 29 34   1 1804 03010106 7 171 23 32   12 1505 03010107 13 944 28 31   1 8606 03010201              7 03010202 2 87 31 37   16 1608 03010203 14 711 22 28   2 5209 03010204 3 176 24 30   0 150

10 03010205 22 281 66 92   5 161711 03020101 22 1198 23 28   0 14012 03020102 3 189 22 27   10 8813 03020103 14 907 28 36   1 1400014 03020104 2 101 12 16   4 12015 03020105              16 03020106 1 134 38 60   18 420017 03020201 65 2730 26 33   1 391718 03020202 16 725 24 30   0 80019 03020203 21 680 20 26   0 62020 03020204 9 166 44 60   0 49021 03030001 3 248 65 96   24 3400022 03030002 72 3100 32 43   1 18023 03030003 45 1863 32 42   1 4500

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Receiving Receiving Receiving NPDES Total Combined Instream Instream 8-digit HUC Effluent

Stream Stream Stream Flow Limit

Suspended Hardness Wastewater Wastewater Hardness Hardness

summer summer 1Q10 [MGD] Solids [mg/l] Concentration Concentration Concentration

7Q10 7Q10 [MGD] [mg/l] (Chronic) (Acute)(CFS) (MGD)

0.84 0.71 10 56.19 0.94 0.95

Table A

1.30 14.00 26.00 58.00Table B 

 

DissolvedUS EPA Translators

-Maximum Total Metals

Allowable Class C, C-NSW

 

HQW streamsMetals

using Default Partition

Coefficients (streams)

[Dissolved Metal ÷ Translator] C-Swamp, B.

      and WS streams      Estimated NPDES Estimated NPDES      Permit Limits (e) Permit Limits (e)

      [Total Metal ÷ IWC] [Total Metal ÷ IWC]Chronic Acute   Chronic Acute Chronic Acute Chronic Acute

PARAMETER * [µg/l] [µg/l]   [µg/l] [µg/l] [µg/l] [µg/l] [µg/l] [µg/l]Cadmium (a) 0.27 1.66 0.252 1.09 6.57 1.15 6.9

 

0.58 3.45   Cd - Trout streams (a)   1.03 0.252  4.08  4.29   2.15

Chromium III (a) 46 355 0.202 229 1757 242.2 1845.8 121.1 922.9

Chromium VI 11 16 1 11 16 11.7 16.8 5.8 8.4

Chromium, Total N/A N/A N/A N/A N/A N/A N/A N/A N/A

Copper (a,b) 5.5 7.8 0.348 15.7 22.5 16.7 23.6 8.3 11.8Lead (a) 1.34 34 0.184 7.27 186 7.7 195.9 3.85 98Nickel (a,c) 32 288 0.432 74 665 78.3 698.7 39.1 349.4

   Ni - WS streams       25  26.5  13.2 

Silver (a,b) 0.06 1.19 1 0.06 1.19 0.06 1.25 0.03 0.63Zinc (a,b) 72 72 0.288 252 250 266.8 262.3 133.4 131.1

Dissolved Metals that are not hardness dependent - proposed standards the same or greater than existing standards 

Beryllium 6.5 65 1 6.5 65 6.9 68.3 3.4 34.1Arsenic (d) 150 340 1 150 340 159 357.2 79.5 178.6

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Table B 

 

Dissolved

US EPA Translators

-Maximum Total

Metals Allowable Class C, C-NSW

  HQW streamsMetals

using Default

Partition Coefficients (streams)

[Dissolved Metal ÷ Translator] C-Swamp, B.

      and WS streams      Estimated NPDES Estimated NPDES      Permit Limits (e) Permit Limits (e)

     [Total Metal ÷

IWC][Total Metal ÷

IWC]Chronic Acute   Chronic Acute Chronic Acute Chronic Acute

PARAMETER * [µg/l] [µg/l]   [µg/l] [µg/l] [µg/l] [µg/l] [µg/l] [µg/l]

Cadmium (a) 0.27 1.66 0.252 1.09 6.57 1.15 6.9

 

0.58 3.45   Cd - Trout streams (a)   1.03 0.252  4.08  4.29   2.15Chromium III (a) 46 355 0.202 229 1757 242.2 1845.8 121.1 922.9Chromium VI 11 16 1 11 16 11.7 16.8 5.8 8.4Chromium, Total N/A N/A N/A N/A N/A N/A N/A N/A N/ACopper (a,b) 5.5 7.8 0.348 15.7 22.5 16.7 23.6 8.3 11.8Lead (a) 1.34 34 0.184 7.27 186 7.7 195.9 3.85 98Nickel (a,c) 32 288 0.432 74 665 78.3 698.7 39.1 349.4   Ni - WS streams       25  26.5  13.2 Silver (a,b) 0.06 1.19 1 0.06 1.19 0.06 1.25 0.03 0.63Zinc (a,b) 72 72 0.288 252 250 266.8 262.3 133.4 131.1Dissolved Metals that are not hardness dependent - proposed standards the same or greater than existing standards  Beryllium 6.5 65 1 6.5 65 6.9 68.3 3.4 34.1Arsenic (d) 150 340 1 150 340 159 357.2 79.5 178.6

Receiving Receiving Receiving NPDES Total Combined Instream Instream 8-digit HUC Effluent

Stream Stream Stream Flow Limit

Suspended Hardness Wastewater Wastewater Hardness Hardness

summer summer 1Q10 [MGD] Solids [mg/l] Concentration Concentration Concentration

7Q10 7Q10 [MGD] [mg/l] (Chronic) (Acute)(CFS) (MGD)

0.84 0.71 10 56.19 0.94 0.95

Table A

1.30 14.00 26.00 58.00

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Example (based on formula) Cd MAEC = 0.00115 mg/l NPDES MAHL = 0.2183 lb/d (at current avg

flow)

Stream = 0.00109 mg/l Stream MAHL = 0.2300 lb/d (at current avg

flow)

Average flow = permitted flow (14 MGD) NPDES MAHL = 0.4069 lb/d Stream MAHL = 0.4088 lb/d

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Uncontrollable Uncontrollable can be zero

If all of the influent data for a particular pollutant of concern is all less than the current best available quantitation level.

If the program does sampling of the collection system and sample results are less than the current best quantitation level those results can be averaged as zeros.

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Practical Quantitation LevelsArsenic -2.0 µg/L  Cadmium – 0.50  ug/lChromium - 10 µg/LCopper – 2.0 µg/LLead - 2.0 µg/LMercury – 1.0 ng/L  (EPA Method 1631E)Molybdenum - 10 µg/LSilver – 1.0  µg/LSelenium - 5.0 µg/LZinc - 10 µg/L* Red Highlighted are lower than the current model

LTMP/STMP