NC0021601_Fact Sheet_20200617

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Fact Sheet
NPDES Permit No. NC0021601

Permit Writer/Email Contact Nick Coco, [e-mail]:
Date: June 17, 2020
Division/Branch: NC Division of Water Resources/NPDES Complex Permitting
Fact Sheet Template: Version 09Jan2017

Permitting Action:
☒ Renewal
☐ Renewal with Expansion
☐ New Discharge
☐ Modification (Fact Sheet should be tailored to mod request)

Note: A complete application should include the following:
 For New Dischargers, EPA Form 2A or 2D requirements, Engineering Alternatives Analysis, Fee
 For Existing Dischargers (POTW), EPA Form 2A, 3 effluent pollutant scans, 4 2nd species WET
tests.
 For Existing Dischargers (Non-POTW), EPA Form 2C with correct analytical requirements based
on industry category.

Complete applicable sections below. If not applicable, enter NA.

1. Basic Facility Information
Facility Information
Applicant/Facility Name: Town of Tryon/Tryon Wastewater Treatment Plant (WWTP)
Applicant Address: 301 North Trade Street, Tryon, NC 28782
Facility Address: 1526 East Howard Street, Tryon, NC 28782
Permitted Flow: 1.5 MGD
Facility Type/Waste: Major Municipal; 98.8% domestic and 1.2% industrial*
Facility Class: Grade III
Treatment Units: Primary screening, bypass manual bar screen, parshall flume, extended
aeration, secondary clarification, chlorine disinfection, dechlorination,
sludge thickener, sludge holding pond
Pretreatment Program (Y/N) Y
County: Polk
Region Asheville
*based on permitted flows

Briefly describe the proposed permitting action and facility background: The Town of Tryon has
applied for an NPDES permit renewal at 1.5 MGD in May 2018. This facility serves a population of
2,500 residents with 1 significant industrial users (SIUs) in their pretreatment program. Treated
wastewater is discharged into Vaughn Creek, a class C water in the Broad River Basin. The facility has a
primary Outfall 001. The average flow as reported in the 2018 permit renewal application was 0.358
MGD.

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2. Receiving Waterbody Information:
Outfalls/Receiving Stream(s): Outfall 001 – Vaughn Creek
Stream Segment: 9-55-1-12
Stream Classification: C
Drainage Area (mi2): 9.9
Summer 7Q10 (cfs) 4
Winter 7Q10 (cfs): 5
30Q2 (cfs): 8
Average Flow (cfs): 15
IWC (% effluent): 37
303(d) listed/parameter: No
Subject to TMDL/parameter: Yes- State wide Mercury TMDL implementation.
Basin/Sub-basin/HUC: Broad River/03-08-06/ 03050105
USGS Topo Quad: G10NW

3. Effluent Data Summary
Effluent data for Outfall 001 is summarized below for the period of August 2016 through February 2020.
Table 1. Effluent Data Summary Outfall 001
Parameter Units Average Max Min Permit Limit
Flow MGD 0.343 1.694 0.071 MA 1.5
BOD mg/l 3.9 72 < 2 WA 45
MA 30
NH3N summer mg/l 0.5 5.6 0.1 WA 6.9
MA 2.3
NH3N winter mg/l 0.5 8.4 0.12 WA 15.6
MA 5.2
TSS mg/l 5.8 27.8 < 5 WA 45.0
MA 30.0
pH SU 7 7.9 6 6.0 ≥ pH ≤ 9.0
Fecal coliform #/100 ml 1.8 600 < 1
(geometric)
WA 400
MA 200
DO mg/l 7.6 12.9 5.2 DA ≥5.0
Temperature ° C 17 27 3
TRC ug/l 35 49 7 DM 28
Total Nitrogen mg/l 4 6.4 < 2
Total Phosphorous mg/l 2.1 9.1 0.17
Chloride mg/l 120 400 2.5
Total Copper ug/l 13.5 36 < 5
Selenium ug/l < 10 < 10 < 10
Total Zinc ug/l 32.5 58 16
Cyanide ug/l 5.4 9 < 5
MA-Monthly Average, WA-Weekly Average, DM-Daily Maximum, DA=Daily Average, QA = Quarterly
Average
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4. Instream Data Summary
Instream monitoring may be required in certain situations, for example: 1) to verify model predictions
when model results for instream DO are within 1 mg/l of instream standard at full permitted flow; 2) to
verify model predictions for outfall diffuser; 3) to provide data for future TMDL; 4) based on other
instream concerns. Instream monitoring may be conducted by the Permittee, and there are also
Monitoring Coalitions established in several basins that conduct instream sampling for the Permittee (in
which case instream monitoring is waived in the permit as long as coalition membership is maintained).
If applicable, summarize any instream data and what instream monitoring will be proposed for this
permit action: The current permit requires instream monitoring for dissolved oxygen, temperature and
conductivity 100 feet upstream of outfall 001 and downstream of the outfall, 50 feet upstream of Pacolet
River. The Permittee provided sampling data in compliance with their permit requirements which has
been summarized in Table 2, shown below.
Table 2. Instream Monitoring Data Summary
Parameter Units Upstream Downstream
Average Max Min Average Max Min
Conductivity umhos/cm 44 87 22 67 171 23
DO mg/l 8.7 14.4 6.4 8.5 13.9 5.8
Temperature ° C 18.6 26 3 18.6 26 3

Students t-tests were run at a 95% confidence interval to analyze relationships between instream
samples. A statistically significant difference is determined when the t-test p-value result is < 0.05.
The downstream temperature did not exceed 29 degrees Celsius [per 15A NCAC 02B .0211 (18)]. The
temperature differential was greater than 2.8 degrees Celsius on no occasion during the period reviewed.
It was concluded with 95% confidence that no statistically significant difference between upstream and
downstream temperature exists.
Downstream DO did not drop below 5 mg/L [per 15A NCAC 02B .0211 (6)] during the period reviewed.
It was concluded with 95% confidence that no significant difference between upstream and downstream
DO exists.
It was concluded that a statistically significant difference exists between upstream and downstream
conductivity. Effluent conductivity was consistently higher than upstream conductivity during the review
period and appears to be influencing conductivity levels downstream. However, due to the facility
consistently passing chronic toxicity testing, the heightened conductivity is likely not having negative
impacts downstream
The draft permit maintains the same instream monitoring requirements as the current permit.
Is this facility a member of a Monitoring Coalition with waived instream monitoring (Y/N): NO
Name of Monitoring Coalition: NA

5. Compliance Summary
Summarize the compliance record with permit effluent limits (past 5 years): The facility reported no limit
violations resulting in enforcement between August 2016 and February 2020.
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Summarize the compliance record with aquatic toxicity test limits and any second species test results
(past 5 years): The facility passed 16 of 16 quarterly chronic toxicity tests between March 2016 and
December 2019, as well as all 4 second species chronic toxicity tests.
Summarize the results from the most recent compliance inspection: The last facility inspection conducted
in March 2020 reported that the facility was in compliance.

6. Water Quality-Based Effluent Limitations (WQBELs)
Dilution and Mixing Zones
In accordance with 15A NCAC 2B.0206, the following streamflows are used for dilution considerations
for development of WQBELs: 1Q10 streamflow (acute Aquatic Life); 7Q10 streamflow (chronic Aquatic
Life; non-carcinogen HH); 30Q2 streamflow (aesthetics); annual average flow (carcinogen, HH).
If applicable, describe any other dilution factors considered (e.g., based on CORMIX model results): NA
If applicable, describe any mixing zones established in accordance with 15A NCAC 2B.0204(b): NA

Oxygen-Consuming Waste Limitations
Limitations for oxygen-consuming waste (e.g., BOD) are generally based on water quality modeling to
ensure protection of the instream dissolved oxygen (DO) water quality standard. Secondary TBEL limits
(e.g., BOD= 30 mg/l for Municipals) may be appropriate if deemed more stringent based on dilution and
model results.
If permit limits are more stringent than TBELs, describe how limits were developed: The results of the
1981 Level B model indicated that secondary BOD5 limits were adequately protective of the stream. No
changes are proposed.

Ammonia and Total Residual Chlorine Limitations
Limitations for ammonia are based on protection of aquatic life utilizing an ammonia chronic criterion of
1.0 mg/l (summer) and 1.8 mg/l (winter). Acute ammonia limits are derived from chronic criteria,
utilizing a multiplication factor of 3 for Municipals and a multiplication factor of 5 for Non-Municipals.
Limitations for Total Residual Chlorine (TRC) are based on the NC water quality standard for protection
of aquatic life (17 ug/l) and capped at 28 ug/l (acute impacts). Due to analytical issues, all TRC values
reported below 50 ug/l are considered compliant with their permit limit.
Describe any proposed changes to ammonia and/or TRC limits for this permit renewal: Monthly and
weekly average ammonia limits were added to the permit in 2016 based on the results of instream
wastewater concentration-based calculations. Ammonia limits have been reviewed in the attached WLA
form and have been found to be protective. No changes are proposed.
The facility uses chlorination as its primary disinfection. The current permit limits TRC at 28 ug/L as a
daily maximum. Though several reported TRC values exceeded the 28 ug/L daily maximum limit, the
facility is considered compliant with its permit since all reported values were less than 50 ug/L. The TRC
limits have been reviewed in the attached WLA and have been found to be protective. No changes are
proposed for TRC.
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Reasonable Potential Analysis (RPA) for Toxicants
The need for toxicant limits is based upon a demonstration of reasonable potential to exceed water quality
standards, a statistical evaluation that is conducted during every permit renewal utilizing the most recent
effluent data for each outfall. The RPA is conducted in accordance with 40 CFR 122.44 (d) (i). The NC
RPA procedure utilizes the following: 1) 95% Confidence Level/95% Probability; 2) assumption of zero
background; 3) use of ½ detection limit for “less than” values; and 4) streamflows used for dilution
consideration based on 15A NCAC 2B.0206. Effective April 6, 2016, NC began implementation of
dissolved metals criteria in the RPA process in accordance with guidance titled NPDES Implementation of
Instream Dissolved Metals Standards, dated June 10, 2016.
A reasonable potential analysis was conducted on effluent toxicant data collected between October 2016
and January 2020. Pollutants of concern included toxicants with positive detections and associated water
quality standards/criteria. Based on this analysis, the following permitting actions are proposed for this
permit:
 Effluent Limit with Monitoring. The following parameters will receive a water quality-based
effluent limit (WQBEL) since they demonstrated a reasonable potential to exceed applicable
water quality standards/criteria: Copper, Chloride
 Monitoring Only. The following parameters will receive a monitor-only requirement since they
did not demonstrate reasonable potential to exceed applicable water quality standards/criteria,
but the maximum predicted concentration was >50% of the allowable concentration: Bis (2-
ethylhexyl) phthalate [based on limited data set]
 No Limit or Monitoring: The following parameters will not receive a limit or monitoring, since
they did not demonstrate reasonable potential to exceed applicable water quality
standards/criteria and the maximum predicted concentration was <50% of the allowable
concentration: Arsenic, Beryllium, Cadmium, Total Chromium, Cyanide, Lead, Nickel,
Selenium, Silver, Zinc, Total Phenolic Compounds

If applicable, attach a spreadsheet of the RPA results as well as a copy of the Dissolved Metals
Implementation Fact Sheet for freshwater/saltwater to this Fact Sheet. Include a printout of the RPA
Dissolved to Total Metal Calculator sheet if this is a Municipality with a Pretreatment Program.

Toxicity Testing Limitations
Permit limits and monitoring requirements for Whole Effluent Toxicity (WET) have been established in
accordance with Division guidance (per WET Memo, 8/2/1999). Per WET guidance, all NPDES permits
issued to Major facilities or any facility discharging “complex” wastewater (contains anything other than
domestic waste) will contain appropriate WET limits and monitoring requirements, with several
exceptions. The State has received prior EPA approval to use an Alternative WET Test Procedure in
NPDES permits, using single concentration screening tests, with multiple dilution follow-up upon a test
failure.
Describe proposed toxicity test requirement: This is a Major POTW, and a chronic WET limit a will
continue on a quarterly frequency at Outfall 001 at 37% effluent.

Mercury Statewide TMDL Evaluation
There is a statewide TMDL for mercury approved by EPA in 2012. The TMDL target was to comply
with EPA’s mercury fish tissue criteria (0.3 mg/kg) for human health protection. The TMDL established a
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wasteload allocation for point sources of 37 kg/year (81 lb/year), and is applicable to municipals and
industrial facilities with known mercury discharges. Given the small contribution of mercury from point
sources (~2% of total load), the TMDL emphasizes mercury minimization plans (MMPs) for point source
control. Municipal facilities > 2 MGD and discharging quantifiable levels of mercury (>1 ng/l) will
receive an MMP requirement. Industrials are evaluated on a case-by-case basis, depending if mercury is a
pollutant of concern. Effluent limits may also be added if annual average effluent concentrations exceed
the WQBEL value (based on the NC WQS of 12 ng/l) and/or if any individual value exceeds a TBEL
value of 47 ng/l
Table 3. Mercury Effluent Data Summary
2017 2018
# of Samples 3 1
Annual Average Conc. ng/L 5.4 2.2
Maximum Conc., ng/L 10.2 2.15
TBEL, ng/L 47
WQBEL, ng/L 32.6

Describe proposed permit actions based on mercury evaluation: Since no annual average mercury
concentration exceeded the WQBEL, and no individual mercury sample exceeded the TBEL, no mercury
limit is required. Since the facility is < 2 MGD, no MMP special condition is required in the permit.

Other TMDL/Nutrient Management Strategy Considerations
If applicable, describe any other TMDLs/Nutrient Management Strategies and their implementation
within this permit: NA

Other WQBEL Considerations
If applicable, describe any other parameters of concern evaluated for WQBELs: NA
If applicable, describe any special actions (HQW or ORW) this receiving stream and classification shall
comply with in order to protect the designated waterbody: NA
If applicable, describe any compliance schedules proposed for this permit renewal in accordance with
15A NCAC 2H.0107( c)(2)(B), 40CFR 122.47, and EPA May 2007 Memo: As total copper and chloride
demonstrated reasonable potential to exceed the facility’s allowable discharge concentrations based on
state surface water standards, monthly average and daily maximum limits have been put in the permit for
total copper and chloride. After discussing the limits with the Permittee, the Permittee requested a
schedule of compliance to provide time to locate issues and come into compliance with the new limits. A
3-year compliance schedule has also been put in the permit. Within 1 year of the permit’s effective date,
the Permittee shall submit to DWR an Action Plan for Division approval, summarizing the strategy or
actions to be taken to achieve compliance with the total copper and chloride limitations. The plan will
include specific dates for completion or implementation of each action. Within 2 years of the permit’s
effective date, the Permittee shall submit a report to the Division summarizing actions taken in
accordance with the Action Plan. The Town shall achieve compliance with total copper and chloride
limitations within 3 years of the permit’s effective date.
If applicable, describe any water quality standards variances proposed in accordance with NCGS 143-
215.3(e) and 15A NCAC 2B.0226 for this permit renewal: NA
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7. Technology-Based Effluent Limitations (TBELs)
Municipals (if not applicable, delete and skip to Industrials)
Are concentration limits in the permit at least as stringent as secondary treatment requirements (30 mg/l
BOD5/TSS for Monthly Average, and 45 mg/l for BOD5/TSS for Weekly Average). YES
If NO, provide a justification for alternative limitations (e.g., waste stabilization pond). NA

Are 85% removal requirements for BOD5/TSS included in the permit? YES
If NO, provide a justification (e.g., waste stabilization pond). NA

8. Antidegradation Review (New/Expanding Discharge):
The objective of an antidegradation review is to ensure that a new or increased pollutant loading will not
degrade water quality. Permitting actions for new or expanding discharges require an antidegradation
review in accordance with 15A NCAC 2B.0201. Each applicant for a new/expanding NPDES permit
must document an effort to consider non-discharge alternatives per 15A NCAC 2H.0105( c)(2). In all
cases, existing instream water uses and the level of water quality necessary to protect the existing use is
maintained and protected.
If applicable, describe the results of the antidegradation review, including the Engineering Alternatives
Analysis (EAA) and any water quality modeling results: NA

9. Antibacksliding Review:
Sections 402(o)(2) and 303(d)(4) of the CWA and federal regulations at 40 CFR 122.44(l) prohibit
backsliding of effluent limitations in NPDES permits. These provisions require effluent limitations in a
reissued permit to be as stringent as those in the previous permit, with some exceptions where limitations
may be relaxed (e.g., based on new information, increases in production may warrant less stringent TBEL
limits, or WQBELs may be less stringent based on updated RPA or dilution).
Are any effluent limitations less stringent than previous permit (YES/NO): NO
If YES, confirm that antibacksliding provisions are not violated: NA

10. Monitoring Requirements
Monitoring frequencies for NPDES permitting are established in accordance with the following
regulations and guidance: 1) State Regulation for Surface Water Monitoring, 15A NCAC 2B.0500; 2)
NPDES Guidance, Monitoring Frequency for Toxic Substances (7/15/2010 Memo); 3) NPDES Guidance,
Reduced Monitoring Frequencies for Facilities with Superior Compliance (10/22/2012 Memo); 4) Best
Professional Judgement (BPJ). Per US EPA (Interim Guidance, 1996), monitoring requirements are not
considered effluent limitations under Section 402(o) of the Clean Water Act, and therefore anti-
backsliding prohibitions would not be triggered by reductions in monitoring frequencies.
For instream monitoring, refer to Section 4.

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11. Electronic Reporting Requirements
The US EPA NPDES Electronic Reporting Rule was finalized on December 21, 2015. Effective
December 21, 2016, NPDES regulated facilities are required to submit Discharge Monitoring Reports
(DMRs) electronically. Effective December 21, 2020, NPDES regulated facilities will be required to
submit additional NPDES reports electronically. This permit contains the requirements for electronic
reporting, consistent with Federal requirements.

12.Summary of Proposed Permitting Actions:
Table 4. Current Permit Conditions and Proposed Changes 1.5 MGD
Parameter Current Permit Proposed Change Basis for Condition/Change
Flow MA 1.5 MGD No changes 15A NCAC 2B .0505
BOD5 MA 30.0 mg/l
WA 45.0 mg/l
No changes TBEL. 40 CFR 133.102 & 15A
NCAC 02B .0406. Based on 1981
Level B Model
NH3-N Summer:
MA 2.3 mg/l
WA 6.9 mg/l
Winter:
MA 5.2 mg/l
WA 15.6 mg/l
No changes WQBEL. Based on 2016 and 2020
IWC-based calculations; see WLA
attached
TSS MA 30 mg/l
WA 45 mg/l

No changes TBEL. Secondary treatment
standards/40 CFR 133 / 15A NCAC
2B .0406.
Fecal coliform MA 200 /100ml
WA 400 /100ml
No changes WQBEL. State WQ standard, 15A
NCAC 2B .0200.
DO > 5 mg/l No change WQBEL. State WQ standard, 15A
NCAC 2B .0200
pH 6 – 9 SU No change WQBEL. State WQ standard, 15A
NCAC 2B .0200
Temperature Monitor and Report
daily
No change 15A NCAC 2B .0500 – Surface Water
Monitoring: Reporting
TRC DM 28 No change WQBEL. Based on 2016 and 2020
IWC-based calculations; see WLA
attached
Total Nitrogen

Monitor and Report
Quarterly
No change

15A NCAC 2B .0500 – Surface Water
Monitoring: Reporting
Total Phosphorus Monitor and Report
Quarterly
No change 15A NCAC 2B .0500 – Surface Water
Monitoring: Reporting
Total Copper Monitor and Report
Quarterly
MA 22.24 ug/l
DM 26.7 ug/l
Monthly monitoring
3-year Schedule of
Compliance
WQBEL. 15A NCAC 02B. Based on
results of RPA; RP shown - apply
Monthly Monitoring with Limit
Chloride Monitor and Report
Quarterly
MA 625.7 mg/l
Monthly monitoring
3-year Schedule of
Compliance
WQBEL. 15A NCAC 02B. Based on
results of RPA; RP shown - apply
Monthly Monitoring with Limit
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Selenium Monitor and Report
Quarterly
No requirement Based on results of RPA; No RP,
Predicted Max < 50% of Allowable
Cw - No Monitoring required
Cyanide Monitor and Report
Quarterly
No requirement Based on results of RPA; No RP,
Predicted Max < 50% of Allowable
Cw - No Monitoring required
Total Zinc Monitor and Report
Quarterly
No requirement Based on results of RPA; No RP,
Predicted Max < 50% of Allowable
Cw - No Monitoring required
Bis (2-ethylhexyl)
phthalate
No requirement Quarterly
Monitoring
Based on results of RPA; RP for
Limited Dataset (n<8 samples) - apply
Quarterly Monitoring
Total Hardness No requirement Quarterly
monitoring
Upstream and in
Effluent
Hardness-dependent dissolved metals
water quality standards approved in
2016; facility with pretreatment
program
Toxicity Test Chronic limit, 37%
effluent
No change WQBEL. No toxics in toxic amounts.
15A NCAC 2B.0200 and 15A NCAC
2B.0500
Effluent Pollutant
Scan
Three times per permit
cycle
No change 40 CFR 122
Electronic
Reporting
Electronic Reporting
Special Condition
No change In accordance with EPA Electronic
Reporting Rule 2015.
MGD – Million gallons per day, MA - Monthly Average, WA – Weekly Average, DM – Daily Max, QA
– Quarterly Average

13. Public Notice Schedule:

Permit to Public Notice: 03/23/2020

Per 15A NCAC 2H .0109 & .0111, The Division will receive comments for a period of 30 days following
the publication date of the public notice. Any request for a public hearing shall be submitted to the
Director within the 30 days comment period indicating the interest of the party filing such request and the
reasons why a hearing is warranted.

14. NPDES Division Contact:
If you have questions regarding any of the above information or on the attached permit, please contact
Nick Coco at [phone] or via email at [e-mail]

15. Fact Sheet Addendum (if applicable):

The Division received comments from MountainTrue on 5/8/2020. A detailed summary of the comments
and Division responses has been attached as an addendum to the fact sheet. The DWR Asheville Regional
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Office commented on the permit regarding the facility’s components list. The digester had been converted
to a sludge thickener and holding pond. The component list has been updated. The draft permit was also
submitted to US EPA Region 4, the Division Operator Certification Program, the DWR Aquatic
Toxicology Branch and the DWR PERCS unit. No comments were received from each of these groups.

Were there any changes made since the Draft Permit was public noticed (Yes/No): Yes
If Yes, list changes and their basis below:

 The facility components list has been updated, replacing the digester with sludge thickening and a
sludge holding pond.
 The Electronic Reporting requirements were updated in SECTION (a)(5)(1).

16. Fact Sheet Attachments (if applicable):
 MountainTrue draft comments and Division responses
 RPA Spreadsheet Summary
 BOD and TSS Removal
 Dissolved Metals Implementation/Freshwater
 Waste Load Allocation Spreadsheet
 Mercury TMDL Spreadsheet
 Toxicity Summary
 PERCS Form
 Instream Monitoring Summary
 Compliance Inspection Report
1
Coco, Nick A
From:Gray Jernigan <[e-mail]>
Sent:Friday, May 8, 2020 1:11 PM
To:Coco, Nick A
Subject:[External] Tryon WWTP Draft Permit Comments
Follow Up Flag:Flag for follow up
Flag Status:Flagged
CAUTION: External email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to
[e-mail]

Mr. Coco,

Please accept the following comments regarding the draft NPDES permit renewal for the Tryon WWTP:
 We disagree with the decision to remove the monitoring requirements for selenium, cyanide and zinc and would
request that those monitoring requirements be reinstated.
 We agree with and support the decision to add total copper and chloride limits and change the quarterly
monitoring requirement to monthly.
 We suggest reducing the schedule of compliance for copper and chloride from 3 years to 1 year.
 We suggest that the monitoring frequency for bis ( 2- ethylhexyl) phthalate be increased from quarterly to
monthly.
 We support the effluent hardness and instream hardness monitoring requirements, but suggest increasing the
frequency from quarterly to monthly.
Thank you for the opportunity to comment on this draft permit and for your service to the citizens of North Carolina.
Please let me know if you have any questions or concerns.

Sincerely,

Gray Jernigan
Southern Regional Director &
Green Riverkeeper
MountainTrue
121 Third Avenue West, Suite 1
Hendersonville, NC 28792
[phone] ext.1004
www.mountaintrue.org [mountaintrue.org]
Follow us on Facebook [facebook.com] & Twitter [twitter.com]
Waterkeeper Alliance [waterkeeper.org] Member

MountainTrue is committed to keeping our mountain region a beautiful place to live, work and play. Our members protect our forests, clean
up our rivers, plan vibrant and livable communities, and advocate for a sound and sustainable future for all residents of WNC.
BUILD A BETTER TOMORROW FOR WESTERN NORTH CAROLINA. BE MOUNTAINTRUE. JOIN
TODAY: mountaintrue.org/join [mountaintrue.org]

[mountaintrue.org]
Fact Sheet Addendum

The Division received comments from the MountainTrue Organization on May 8, 2020 and provides the
following responses:

1. Comment: We disagree with the decision to remove the monitoring requirements for selenium, cyanide and
zinc and would request that those monitoring requirements be reinstated.
Response: Based on the results of the reasonable potential analysis (RPA) demonstrating no reasonable
potential for selenium, cyanide and zinc to exceed surface water quality standards, monitoring is not necessary
for these parameters. As such, the removal of monitoring requirements for selenium, cyanide and zinc has been
maintained in the final permit.

2. Comment: We suggest reducing the schedule of compliance for copper and chloride from 3 years to 1 year.
Response: When conducting the reasonable potential analysis (RPA) for the Tryon WWTP, total copper and
chloride both demonstrated reasonable potential to exceed surface water quality standards. After we informed
the Town that we would be putting limits in their permit for both copper and chloride, the Town requested a
compliance schedule for both parameters, in accordance with 40 CFR 122.47(a)(1). The Town mentioned that
they need time to locate the source(s) of these parameters, manage the source adequately to reduce the
concentrations, and to come into compliance with the permit limits. In discussing the timeline with the Town,
we agreed upon a 3-year schedule to allow the Town to conduct their investigation into the source for both
parameters and to handle each appropriately. Per 40 CFR 122.47(a)(3), “compliance schedules that are longer
than one year in duration must set forth interim requirements and dates for their achievement.” For the duration
of the compliance schedule, the Town would have annual milestones to report to the Division. After the first
year, the Town shall submit a corrective action plan to the Division for approval. After the second year, the
Town shall submit a progress update to the Division to ensure they are making progress toward compliance.
After the third year, the Town shall achieve compliance with the permit limit. The Division feels this
compliance schedule would promote the Town coming into compliance with their permit limits as soon as
possible. Thus, the schedule will maintain a 3-year duration.

3. Comment: We suggest that the monitoring frequency for bis (2 – ethylhexyl) phthalate be increased from
quarterly to monthly.
Response: A reasonable potential analysis (RPA) was conducted on the bis (2-ethylhexyl) phthalate data
reported by the Town in their Priority Pollutant Analyses. Of the 5 samples, 4 were reported below the detection
limit. Based on Division guidance provided in a 7/15/2010 memo regarding implementation of RPA conditions,
when reasonable potential to exceed surface water quality standards exists, but the data set is limited (n < 9
samples) and fewer than 2 samples exceeded the allowable discharge concentration, quarterly monitoring is
added to the permit. As bis (2-ethylhexyl) phthalate falls into this category, quarterly monitoring has been
maintained in the final permit.

4. Comment: We support the effluent hardness and instream hardness monitoring requirements, but suggest
increasing the frequency from quarterly to monthly.
Response: Based on 2016 permitting guidance for NPDES Implementation of Instream Dissolved Metal
Standards, to build a more robust hardness dataset, all Municipal and Industrial Permittees, with a discharge to
freshwater, required to sample for hardness-dependent metals shall get quarterly monitoring requirements for
effluent hardness and instream hardness, upstream of the discharge. All Pretreatment POTWs sampling for
hardness-dependent metals (as part of their Pretreatment LTMP/STMP or as a permit requirement) shall
get quarterly monitoring requirements for effluent hardness and instream hardness, upstream of the discharge.
As the Town falls into both categories, quarterly monitoring has been maintained in the final permit.
Town of Tryon
Wastewater Treatment Plant
301 N. Trade Street
Tryon, NC 28782

March 30, 2020

Nicholas A. Coco, Engineer
NPDES Complex Permitting Unit
NC DEQ/Division of Water Resources
Water Quality Permitting
1617 Mail Service Center
Raleigh, NC 27604

SUBJECT: Compliance Schedule
Tryon WWTP
Permit No. NC0021601

Dear Mr. Coco:

The Town of Tryon is requesting a compliance schedule for our new permit No. NC0021601. Your email
stated that copper and chloride will be added to the new permit based on reasonable potential analysis.
Since we aren’t currently exceeding but have sources coming from somewhere, this would give us time to
track potential sources.

If you have questions, please contact me.

Sincerely,

Deborah Bradley, ORC
Tryon WWTP

cc: Mikal Willmer

REQUIRED DATA ENTRY
Name WQS Type Chronic Modifier Acute PQL Units
Facility Name Tryon WWTP Par01 Arsenic Aquactic Life C 150 FW 340 ug/L
WWTP/WTP Class III Par02 Arsenic Human Health
Water Supply C 10 HH/WS N/A ug/L
NPDES Permit NC0021601 Par03 Beryllium Aquatic Life NC 6.5 FW 65 ug/L
Outfall 001 Par04 Cadmium Aquatic Life NC 0.6017 FW 3.3231 ug/L
Flow, Qw (MGD)1.500 Par05 Chlorides Aquatic Life NC 230 FW mg/L
Receiving Stream Vaughn Creek Par06 Chlorinated Phenolic Compounds Water Supply NC 1 A ug/L
HUC Number 03050105 Par07 Total Phenolic Compounds Aquatic Life NC 300 A ug/L
Stream Class Par08 Chromium III Aquatic Life NC 120.2785 FW 926.9281 ug/L
Par09 Chromium VI Aquatic Life NC 11 FW 16 µg/L
7Q10s (cfs)4.00 Par10 Chromium, Total Aquatic Life NC N/A FW N/A µg/L
7Q10w (cfs)5.00 Par11 Copper Aquatic Life NC 8.0585 FW 10.7633 ug/L
30Q2 (cfs)8.00 Par12 Cyanide Aquatic Life NC 5 FW 22 10 ug/L
QA (cfs)15.00 Par13 Fluoride Aquatic Life NC 1,800 FW ug/L
1Q10s (cfs)3.34 Par14 Lead Aquatic Life NC 3.0294 FW 78.0033 ug/L
Effluent Hardness 26.8 mg/L (Avg)Par15 Mercury Aquatic Life NC 12 FW 0.5 ng/L
Upstream Hardness 25 mg/L (Avg)Par16 Molybdenum Human Health NC 2000 HH ug/L
Combined Hardness Chronic 25.66 mg/L Par17 Nickel Aquatic Life NC 38.0633 FW 343.5698 µg/L
Combined Hardness Acute 25.74 mg/L Par18 Nickel Water Supply NC 25.0000 WS N/A µg/L
Data Source(s)Par19 Selenium Aquatic Life NC 5 FW 56 ug/L
Par20 Silver Aquatic Life NC 0.06 FW 0.3116 ug/L
Par21 Zinc Aquatic Life NC 129.5698 FW 128.8455 ug/L
Par22 Bis (2-ethylhexyl) phthalate Human Health C 0.37 FW µg/L
Par23
Par24
Follow directions for data entry. In some cases a
comment menu list the available choices or a
dropdown menu will provide a list you may select
from. Error message occur if data entry does not
meet input criteria.
To appy a Model IWC %: Once the
"Flow, Qw (MGD)" and and the
"CHRONIC DILUTION FACTOR =
" values are entered, the 7Q10s
(cfs) flow is calculated and
displayed. Enter the calculated
"7Q10s (cfs)" flow value in Table 1.
Table 1. Project Information Table 2. Parameters of Concern
Freshwater RPA - 95% Probability/95% Confidence Using Metal Translators
MAXIMUM DATA POINTS = 58
Note: Bis (2-ethylhexyl) phthalate chronic value from
EPA Nationally Recommended Criteria.
C
CHECK IF HQW OR ORW WQS
CHECK TO APPLY MODEL
Apply WS Hardness WQC
RPA, input
3/16/2020
REASONABLE POTENTIAL ANALYSIS
H1 H2 Par01 & Par02
Effluent Hardness Upstream Hardness Arsenic
Date Data BDL=1/2DL Results Date Data BDL=1/2DL Results Date Data BDL=1/2DL Results16/11/2019 28 28 Std Dev.1.7889 1 25 25 Std Dev.N/A 1 6/6/2017 <10 5 Std Dev.0.0000
2 12/12/2017 26 26 Mean 26.8000 2 Mean 25.0000 2 12/12/2017 <10 5 Mean 5.0000
3 6/7/2016 28 28 C.V. (default)0.6000 3 C.V.0.0000 3 3/6/2018 <10 5 C.V.0.0000
4 12/8/2015 24 24 n 5 4 n 1 4 6/11/2019 <10 5 n 459/2/2014 28 28 10th Per value 24.80 mg/L 5 10th Per value 25.00 mg/L 5
6 Average Value =26.80 mg/L 6 Average Value =25.00 mg/L 6 Mult Factor =1.00
7 Max. Value 28.00 mg/L 7 Max. Value 25.00 mg/L 7 Max. Value 5.0 ug/L
8 8 8 Max. Pred CwNO DETECTS ug/L999
10 10 10
11 11 11
12 12 12131313
14 14 14
15 15 15
16 16 16171717
18 18 18
19 19 19
20 20 20212121
22 22 22
23 23 23
24 24 24
25 25 25262626
27 27 27
28 28 28292929303030
31 31 31323232
33 33 33
34 34 34
35 35 35363636373737
38 38 38
39 39 39404040414141
42 42 42
43 43 43
44 44 44454545
46 46 46
47 47 47
48 48 48494949
50 50 50
51 51 51
52 52 52535353
54 54 54
55 55 55
56 56 56575757
58 58 58
Use "PASTE SPECIAL-
Values" then "COPY" . Maximum data points
= 58
Use "PASTE SPECIAL-
Values" then "COPY" . Maximum data points
= 58
Use "PASTE SPECIAL-
Values" then "COPY" .
Maximum data points = 58
- 1 -RPA, data
3/16/2020
REASONABLE POTENTIAL ANALYSIS
Par03 Par04 Par05 Par07
Beryllium Cadmium Chlorides Total Phenolic Compounds
Date Data BDL=1/2DL Results Date Data BDL=1/2DL Results Date Data BDL=1/2DL Results Date Data BDL=1/2DL Results112/12/2017 <1 0.5 Std Dev.0.0000 1 6/6/2017 <1 0.5 Std Dev.0.0000 1 9/13/2016 140 140 Std Dev.109.5605 1 6/11/2019 <5.0 2.5 Std Dev.1.5652
2 6/11/2019 <1 0.5 Mean 0.5000 2 12/12/2017 <1 0.5 Mean 0.5000 2 12/6/2016 150 150 Mean 119.9 2 12/12/2017 6.0 6.0 Mean 3.2000
3 9/2/2014 <1 0.5 C.V.0.0000 3 3/6/2018 <1 0.5 C.V.0.0000 3 3/7/2017 240 240 C.V.0.9135 3 6/7/2016 <5.0 2.5 C.V. (default)0.6000
4 12/8/2015 <1 0.5 n 5 4 6/11/2019 <1 0.5 n 4 4 6/6/2017 180 180 n 14 4 12/8/2015 <5.0 2.5 n 556/7/2016 <1 0.5 5 5 9/4/2017 22 22 5 9/2/2014 <5.0 2.5
6 Mult Factor =1.00 6 Mult Factor =1.00 6 12/12/2017 160 160 Mult Factor =1.8 6 Mult Factor =2.32
7 Max. Value 0.50 ug/L 7 Max. Value 0.500 ug/L 7 3/6/2018 120 120 Max. Value 400.0 mg/L 7 Max. Value 6.0 ug/L
8 Max. Pred Cw NO DETECTS ug/L 8 Max. Pred Cw NO DETECTS ug/L 8 6/14/2018 400 400 Max. Pred Cw 732.0 mg/L 8 Max. Pred Cw 13.9 ug/L9999/4/2018 140 140 9
10 10 10 12/11/2018 25 25 10
11 11 11 3/12/2019 9.5 9.5 11
12 12 12 6/11/2019 2.5 2.5 121313139/10/2019 60 60 13
14 14 14 12/10/2019 30 30 14
15 15 15 15
16 16 16 1617171717
18 18 18 18
19 19 19 19
20 20 20 2021212121
22 22 22 22
23 23 23 23
24 24 24 24
25 25 25 2526262626
27 27 27 27
28 28 28 282929292930303030
31 31 31 3132323232
33 33 33 33
34 34 34 34
35 35 35 353636363637373737
38 38 38 38
39 39 39 394040404041414141
42 42 42 42
43 43 43 43
44 44 44 4445454545
46 46 46 46
47 47 47 47
48 48 48 4849494949
50 50 50 50
51 51 51 51
52 52 52 5253535353
54 54 54 54
55 55 55 55
56 56 56 5657575757
58 58 58 58
Use "PASTE SPECIAL-
Values" then "COPY" .
Maximum data points = 58
Use "PASTE SPECIAL-
Values" then "COPY" .
Maximum data points = 58
Use "PASTE SPECIAL-
Values" then "COPY" .
Maximum data points = 58
Use "PASTE SPECIAL-Values"
then "COPY" .
Maximum data points = 58
- 2 -RPA, data
3/16/2020
REASONABLE POTENTIAL ANALYSIS
Par10 Pa11 Par12 Par13
Chromium, Total Copper Cyanide Fluoride
Date Data BDL=1/2DLResults Date Data BDL=1/2DL Results Date Data BDL=1/2DLResults Date Data BDL=1/2DL Results16/6/2017 <5 3 Std Dev.0.0 1 9/13/2016 11 11 Std Dev.9.3753 1 9/13/2016 6 5 Std Dev.0.0000 1 6/6/2017 <100 50 Std Dev.0.0000
2 12/12/2017 <5 3 Mean 2.5 2 12/6/2016 10 10 Mean 13.1875 2 12/6/2016 <5 5 Mean 5.00 2 3/6/2018 <100 50 Mean 50.0000
3 3/6/2018 <5 3 C.V.0.0 3 3/7/2017 13 13 C.V.0.7109 3 3/7/2017 9 5 C.V.0.0000 3 C.V.0.0000
4 6/11/2019 <5 3 n 4 4 6/6/2017 8 8 n 16 4 6/6/2017 <5 5 n 14 4 n 2559/4/2017 18 18 5 9/4/2017 <5 5 5
6 Mult Factor =1.00 6 12/12/2017 8 8 Mult Factor =1.56 6 12/12/2017 <5 5 Mult Factor =1.00 6 Mult Factor =1.00
7 Max. Value 2.5 µg/L 7 3/6/2018 10 10 Max. Value 36.00 ug/L 7 3/6/2018 <5 5 Max. Value 5.0 ug/L 7 Max. Value 50.0 ug/L
8 Max. Pred CwNO DETECTS µg/L 8 6/14/2018 9 9 Max. Pred Cw 56.16 ug/L 8 6/14/2018 <5 5 Max. Pred Cw 5.0 ug/L 8 Max. Pred CwNO DETECTS ug/L996/21/2018 13 13 9 9/4/2018 <5 5 9
10 10 6/28/2018 36 36 10 12/11/2018 5 5 10
11 11 9/4/2018 35 35 11 3/12/2019 <5 5 11
12 12 12/11/2018 <10 5 12 6/11/2019 <5 5 1213133/12/2019 5 5 13 9/10/2019 <5 5 13
14 14 6/11/2019 8 8 14 12/10/2019 5 5 14
15 15 9/10/2019 15 15 15 15
16 16 12/10/2019 7 7 16 1617171717
18 18 18 18
19 19 19 19
20 20 20 2021212121
22 22 22 22
23 23 23 23
24 24 24 24
25 25 25 2526262626
27 27 27 27
28 28 28 282929292930303030
31 31 31 3132323232
33 33 33 33
34 34 34 34
35 35 35 353636363637373737
38 38 38 38
39 39 39 394040404041414141
42 42 42 42
43 43 43 43
44 44 44 4445454545
46 46 46 46
47 47 47 47
48 48 48 4849494949
50 50 50 50
51 51 51 51
52 52 52 5253535353
54 54 54 54
55 55 55 55
56 56 56 5657575757
58 58 58 58
Use "PASTE SPECIAL-
Values" then "COPY" .
Maximum data points = 58
Use "PASTE SPECIAL-Values"
then "COPY" . Maximum data
points = 58
Use "PASTE SPECIAL-Values"
then "COPY" . Maximum data
points = 58
Use "PASTE SPECIAL-Values"
then "COPY" . Maximum data
points = 58
- 3 -RPA, data
3/16/2020
REASONABLE POTENTIAL ANALYSIS
Par14 Par16 Par17 & Par18 Par19
Lead Molybdenum Nickel Selenium
Date Data BDL=1/2DL Results Date Data BDL=1/2DL Results Date Data BDL=1/2DL Results Date Data BDL=1/2DLResults16/6/2017 <5 2.5 Std Dev.0.0000 1 6/6/2017 <10 5 Std Dev.0.0000 1 6/6/2017 <10 5 Std Dev.0.0000 1 9/13/2016 <10 5 Std Dev.0.0000
2 12/12/2017 <5 2.5 Mean 2.5000 2 9/4/2017 <10 5 Mean 5.0000 2 9/4/2017 <10 5 Mean 5.0000 2 12/6/2016 <10 5 Mean 5.0000
3 3/6/2018 <5 2.5 C.V.0.0000 3 12/12/2017 <10 5 C.V.0.0000 3 12/12/2017 <10 5 C.V.0.0000 3 3/7/2017 <10 5 C.V.0.0000
4 6/11/2019 <5 2.5 n 4 4 3/6/2018 <10 5 n 5 4 3/6/2018 <10 5 n 5 4 6/6/2017 <10 5 n 14556/11/2019 <10 5 5 6/11/2019 <10 5 5 9/4/2017 <10 5
6 Mult Factor =1.00 6 Mult Factor =1.00 6 Mult Factor =1.00 6 12/12/2017 <10 5 Mult Factor =1.00
7 Max. Value 2.500 ug/L 7 Max. Value 5.0 ug/L 7 Max. Value 5.0 µg/L 7 3/6/2018 <10 5 Max. Value 5.0 ug/L
8 Max. Pred Cw NO DETECTS ug/L 8 Max. Pred CwNO DETECTS ug/L 8 Max. Pred Cw NO DETECTS µg/L 8 6/14/2018 <10 5 Max. Pred CwNO DETECTS ug/L99999/4/2018 <10 5
10 10 10 10 12/11/2018 <10 5
11 11 11 11 3/12/2019 <10 5
12 12 12 12 6/11/2019 <10 5131313139/10/2019 <10 5
14 14 14 14 12/10/2019 <10 5
15 15 15 15
16 16 16 1617171717
18 18 18 18
19 19 19 19
20 20 20 2021212121
22 22 22 22
23 23 23 23
24 24 24 24
25 25 25 2526262626
27 27 27 27
28 28 28 282929292930303030
31 31 31 3132323232
33 33 33 33
34 34 34 34
35 35 35 353636363637373737
38 38 38 38
39 39 39 394040404041414141
42 42 42 42
43 43 43 43
44 44 44 4445454545
46 46 46 46
47 47 47 47
48 48 48 4849494949
50 50 50 50
51 51 51 51
52 52 52 5253535353
54 54 54 54
55 55 55 55
56 56 56 5657575757
58 58 58 58
Use "PASTE SPECIAL-Values"
then "COPY" . Maximum data
points = 58
Use "PASTE SPECIAL-Values"
then "COPY" . Maximum data
points = 58
Use "PASTE SPECIAL-
Values" then "COPY" .
Maximum data points = 58
Use "PASTE SPECIAL-Values"
then "COPY" . Maximum data
points = 58
- 4 -RPA, data
3/16/2020
REASONABLE POTENTIAL ANALYSIS
Par20 Par21 Par22
Silver Zinc Bis (2-ethylhexyl) phthalate
Date Data BDL=1/2DLResults Date Data BDL=1/2DL Results Date Data BDL=1/2DL Results112/12/2017 <10 5 Std Dev.1.7678 1 9/13/2016 28 28 Std Dev.10.7471 1 6/11/2019 <10 5 Std Dev.32.6981
2 6/11/2019 <5 2.5 Mean 3.7500 2 12/6/2016 22 22 Mean 32.5000 2 12/12/2017 <5 2.5 Mean 17.7400
3 C.V. (default)0.6000 3 3/7/2017 58 58 C.V.0.3307 3 6/7/2016 76.2 76.2 C.V. (default)0.6000
4 n 2 4 6/6/2017 25 25 n 14 4 12/8/2015 <5 2.5 n 5559/4/2017 35 35 5 9/2/2014 <5 2.5
6 Mult Factor =3.79 6 12/12/2017 30 30 Mult Factor =1.28 6 Mult Factor =2.32
7 Max. Value 5.000 ug/L 7 3/6/2018 32 32 Max. Value 58.0 ug/L 7 Max. Value 76.200000 µg/L
8 Max. Pred CwNO DETECTS ug/L 8 6/14/2018 48 48 Max. Pred Cw 74.2 ug/L 8 Max. Pred Cw 176.784000 µg/L999/4/2018 16 16 9
10 10 12/11/2018 31 31 10
11 11 3/12/2019 35 35 11
12 12 6/11/2019 40 40 1213139/10/2019 24 24 13
14 14 12/10/2019 31 31 14
15 15 15
16 16 16171717
18 18 18
19 19 19
20 20 20212121
22 22 22
23 23 23
24 24 24
25 25 25262626
27 27 27
28 28 28292929303030
31 31 31323232
33 33 33
34 34 34
35 35 35363636373737
38 38 38
39 39 39404040414141
42 42 42
43 43 43
44 44 44454545
46 46 46
47 47 47
48 48 48494949
50 50 50
51 51 51
52 52 52535353
54 54 54
55 55 55
56 56 56575757
58 58 58
Use "PASTE SPECIAL-Values"
then "COPY" . Maximum data
points = 58
Use "PASTE SPECIAL-Values"
then "COPY" . Maximum data
points = 58
Use "PASTE SPECIAL-Values"
then "COPY" . Maximum data
points = 58
- 5 -RPA, data
3/16/2020
Tryon WWTP ≥Outfall 001
NC0021601 Freshwater RPA - 95% Probability/95% Confidence Using Metal Translators Qw = 1.5 MGD
MAXIMUM DATA POINTS = 58
Qw (MGD) = 1.50 WWTP/WTP Class:III COMBINED HARDNESS (mg/L)
1Q10S (cfs) = 3.34 IWC% @ 1Q10S = 41.04148279 Acute = 25.74 mg/L
7Q10S (cfs) = 4.00 IWC% @ 7Q10S = 36.75889328 Chronic = 25.66 mg/L
7Q10W (cfs) = 5.00 IWC% @ 7Q10W = 31.74061433
30Q2 (cfs) = 8.00 IWC% @ 30Q2 = 22.51815981
Avg. Stream Flow, QA (cfs) = 15.00 IW%C @ QA = 13.41991342
Receiving Stream:Stream Class:C
PARAMETER RECOMMENDED ACTION
Chronic Applied
Standard Acute n # Det.Max Pred Cw
Acute (FW):828.4
Arsenic C 150 FW(7Q10s)340 ug/L
4 0 NO DETECTS Chronic (FW):408.1
Max MDL = 10
Arsenic C 10 HH/WS(Qavg)ug/L Note: n ≤ 9 Chronic (HH):74.5
Limited data set Max MDL = 10
Acute:158.38
Beryllium NC 6.5 FW(7Q10s)65 ug/L 5 0 NO DETECTS
Note: n ≤ 9 Chronic:17.68
Limited data set Max MDL = 1
Acute:8.097
Cadmium NC 0.6017 FW(7Q10s)3.3231 ug/L 4 0 NO DETECTS
Note: n ≤ 9 Chronic:1.637
Limited data set Max MDL = 1
Acute:NO WQS
Chlorides NC 230 FW(7Q10s)mg/L 14 14 732.0
Chronic:625.7
No value > Allowable Cw
Acute:NO WQS
Total Phenolic Compounds NC 300 A(30Q2)ug/L 5 1 13.9
Note: n ≤ 9 Default C.V.Chronic:1,332.3
Limited data set No value > Allowable Cw
Acute:2,258.5
Chromium III NC 120.2785 FW(7Q10s)926.9281 µg/L 0 0 N/A
Chronic:327.2
Acute:39.0
Chromium VI NC 11 FW(7Q10s)16 µg/L 0 0 N/A
Chronic:29.9
Chromium, Total NC µg/L 4 0 NO DETECTS
Note: n ≤ 9
Limited data set Max MDL = 5
Acute:26.23
Copper NC 8.0585 FW(7Q10s)10.7633 ug/L 16 15 56.16
Chronic:21.92
2 value(s) > Allowable CwPQLUNITSTYPE
(1)Allowable Cw
REASONABLE POTENTIAL RESULTSNC STANDARDS OR EPA CRITERIA
Vaughn Creek HUC 03050105
No RP, Predicted Max < 50% of Allowable Cw - No
Monitoring required
RP shown - apply Monthly Monitoring with Limit
No RP, Predicted Max < 50% of Allowable Cw - No
Monitoring required
No RP, Predicted Max < 50% of Allowable Cw - No
Monitoring required
No RP, Predicted Max < 50% of Allowable Cw - No
Monitoring required
RP shown - apply Monthly Monitoring with Limit
a. No Monitoring required if all Total Chromium
samples are < the Chromium VI Allowable Cw
Page 1 of 2 RPA, rpa
3/16/2020
Tryon WWTP ≥Outfall 001
NC0021601 Freshwater RPA - 95% Probability/95% Confidence Using Metal Translators Qw = 1.5 MGD
Acute:53.6
Cyanide NC 5 FW(7Q10s)22 10 ug/L 14 4 5.0
Chronic:13.6
No value > Allowable Cw
Acute:190.060
Lead NC 3.0294 FW(7Q10s)78.0033 ug/L 4 0 NO DETECTS
Note: n ≤ 9 Chronic:8.241
Limited data set Max MDL = 5
Acute:NO WQS
Molybdenum NC 2000 HH(7Q10s)ug/L 5 0 NO DETECTS
Note: n ≤ 9 Chronic:5,440.9
Limited data set Max MDL = 10
Acute (FW):837.1
Nickel NC 38.0633 FW(7Q10s)343.5698 µg/L
5 0 NO DETECTS Chronic (FW):103.5
Note: n ≤ 9 Max MDL = 10
Nickel NC 25.0000 WS(7Q10s)µg/L Limited data set Chronic (WS):68.0
Max MDL = 10
Acute:136.4
Selenium NC 5 FW(7Q10s)56 ug/L 14 0 NO DETECTS
Chronic:13.6
Max MDL = 10
Acute:0.759
Silver NC 0.06 FW(7Q10s)0.3116 ug/L 2 0 NO DETECTS
Note: n ≤ 9 Chronic:0.163
Limited data set Max MDL = 10
Acute:313.9
Zinc NC 129.5698 FW(7Q10s)128.8455 ug/L 14 14 74.2
Chronic:352.5
No value > Allowable Cw
Acute:NO WQS
Bis (2-ethylhexyl) phthalate C 0.37 FW(7Q10s)µg/L 5 1 176.78400
Note: n ≤ 9 Default C.V.Chronic:1.00656
Limited data set 5 value(s) > Allowable Cw
No RP, Predicted Max < 50% of Allowable Cw - No
Monitoring required
No RP, Predicted Max < 50% of Allowable Cw - No
Monitoring required
No RP, Predicted Max < 50% of Allowable Cw - No
Monitoring required
No RP, Predicted Max < 50% of Allowable Cw - No
Monitoring required
RP for Limited Dataset (n<8 samples) - apply
Quarterly Monitoring
No RP, Predicted Max < 50% of Allowable Cw - No
Monitoring required
No RP, Predicted Max < 50% of Allowable Cw - No
Monitoring required
No RP, Predicted Max < 50% of Allowable Cw - No
Monitoring required
Page 2 of 2 RPA, rpa
3/16/2020
3/16/20 WQS = 12 ng/L V:2013-6
Facility Name
/Permit No. :
Total Mercury 1631E PQL = 0.5 ng/L 7Q10s = 4.000 cfs WQBEL = 32.65 ng/L
Date Modifier Data Entry Value Permitted Flow = 1.500 47 ng/L
6/6/17 3.09 3.09
9/4/17 2.89 2.89
12/12/17 10.2 10.2 5.4 ng/L - Annual Average for 2017
3/6/18 2.15 2.15 2.2 ng/L - Annual Average for 2018
Tryon WWTP/NC0021601 No Limit Required
MERCURY WQBEL/TBEL EVALUATION
No MMP Required
Tryon WWTP/NC0021601
Mercury Data Statistics (Method 1631E)
2017 2018
# of Samples 3 1
Annual Average, ng/L 5.4 2.2
Maximum Value, ng/L 10.20 2.15
TBEL, ng/L
WQBEL, ng/L 32.6
47
NC0021601 Tryon WWTP 3/10/2020
Month RR (%)Month RR (%)Month RR (%)Month RR (%)
August-16 94.12 February-19 92.21 August-16 94.59 February-19 95.82
September-16 97.77 March-19 92.86 September-16 96.34 March-19 95.22
October-16 97.36 April-19 92.38 October-16 94.08 April-19 96.24
November-16 96.79 May-19 97.96 November-16 92.17 May-19 97.70
December-16 98.37 June-19 96.29 December-16 96.52 June-19 97.41
January-17 97.29 July-19 97.10 January-17 95.57 July-19 98.65
February-17 97.24 August-19 98.69 February-17 96.94 August-19 98.48
March-17 98.26 September-19 99.27 March-17 98.10 September-19 98.78
April-17 94.25 October-19 98.74 April-17 96.35 October-19 97.55
May-17 98.74 November-19 97.49 May-17 98.32 November-19 97.13
June-17 93.43 December-19 94.92 June-17 98.34 December-19 96.04
July-17 84.85 January-20 96.58 July-17 96.38 January-20 93.58
August-17 97.89 February-20 August-17 97.43 February-20
September-17 98.49 March-20 September-17 97.85 March-20
October-17 97.91 April-20 October-17 96.55 April-20
November-17 96.65 May-20 November-17 96.35 May-20
December-17 94.76 June-20 December-17 92.79 June-20
January-18 93.56 July-20 January-18 89.72 July-20
February-18 80.25 August-20 February-18 79.48 August-20
March-18 96.70 September-20 March-18 96.77 September-20
April-18 96.42 October-20 April-18 96.56 October-20
May-18 96.44 November-20 May-18 98.12 November-20
June-18 97.55 December-20 June-18 98.72 December-20
July-18 97.07 January-21 July-18 98.76 January-21
August-18 98.42 February-21 August-18 97.92 February-21
September-18 98.14 March-21 September-18 97.01 March-21
October-18 98.09 April-21 October-18 95.68 April-21
November-18 95.65 May-21 November-18 93.79 May-21
December-18 96.53 June-21 December-18 95.98 June-21
January-19 94.85 July-21 January-19 94.87 July-21
Overall BOD removal rate 95.91 Overall TSSD removal rate 95.97
BOD monthly removal rate TSS monthly removal rate
NH3/TRC WLA Calculations
Facility: Tryon WWTP
PermitNo. NC0021601
Prepared By: Nick Coco
Enter Design Flow (MGD):1.5
Enter s7Q10 (cfs):4
Enter w7Q10 (cfs):5
Total Residual Chlorine (TRC)Ammonia (Summer)
Daily Maximum Limit (ug/l)Monthly Average Limit (mg NH3-N/l)
s7Q10 (CFS)4 s7Q10 (CFS)4
DESIGN FLOW (MGD)1.5 DESIGN FLOW (MGD)1.5
DESIGN FLOW (CFS)2.325 DESIGN FLOW (CFS)2.325
STREAM STD (UG/L)17.0 STREAM STD (MG/L)1.0
Upstream Bkgd (ug/l)0 Upstream Bkgd (mg/l)0.22
IWC (%)36.76 IWC (%)36.76
Allowable Conc. (ug/l)46 Allowable Conc. (mg/l)2.3
Cap at 28 ug/L. Maintain limit.Same as current permit limit. Maintain limit.
Ammonia (Winter)
Monthly Average Limit (mg NH3-N/l)
Fecal Coliform w7Q10 (CFS)5
Monthly Average Limit:200/100ml DESIGN FLOW (MGD)1.5
(If DF >331; Monitor)DESIGN FLOW (CFS)2.325
(If DF<331; Limit)STREAM STD (MG/L)1.8
Dilution Factor (DF)2.72 Upstream Bkgd (mg/l)0.22
IWC (%)31.74
Allowable Conc. (mg/l)5.2
Same as current permit limit. Maintain limit.
Total Residual Chlorine
1. Cap Daily Max limit at 28 ug/l to protect for acute toxicity
Ammonia (as NH3-N)
1. If Allowable Conc > 35 mg/l, Monitor Only
2. Monthly Avg limit x 3 = Weekly Avg limit (Municipals)
3. Monthly Avg limit x 5 = Daily Max limit (Non-Munis)
If the allowable ammonia concentration is > 35 mg/L, no limit shall be imposed
Fecal Coliform
1. Monthly Avg limit x 2 = 400/100 ml = Weekly Avg limit (Municipals) = Daily Max limit (Non-Muni)

NC0021601 Instream Temperature Summary
Date
Upstream
Temperature
[degC]
Downstream
Temperature
[degC]
Date
Upstream
Temperature
[degC]
Downstream
Temperature
[degC]
8/1/2016 24 24 1/3/2017 9 9
8/2/2016 24 24 1/10/2017 6 6
8/3/2016 24 24 1/18/2017 12 12
8/8/2016 26 26 1/24/2017 10 10
8/9/2016 25 25 1/30/2017 9 9
8/10/2016 26 26 2/6/2017 8 8
8/15/2016 25 25 2/13/2017 10 10
8/16/2016 25 25 2/20/2017 11 11
8/17/2016 25 25 2/27/2017 9 9
8/22/2016 24 24 3/6/2017 10 10
8/23/2016 23 23 3/14/2017 9 9
8/24/2016 23 23 3/20/2017 7 7
8/29/2016 24 24 3/27/2017 15 15
8/30/2016 23 23 4/3/2017 16 16
8/31/2016 23 23 4/10/2017 14 14
9/5/2016 21 22 4/17/2017 17 17
9/6/2016 20 21 4/24/2017 17 17
9/7/2016 20 20 5/1/2017 17 17
9/12/2016 22 22 5/8/2017 15 15
9/13/2016 22 22 5/16/2017 19 19
9/14/2016 22 22 5/22/2017 22 22
9/19/2016 22 22 5/30/2017 21 21
9/20/2016 22 22 6/5/2017 22 22
9/21/2016 22 22 6/6/2017 22 22
9/26/2016 22 22 6/7/2017 21 21
9/27/2016 22 22 6/12/2017 21 21
9/28/2016 22 22 6/13/2017 23 23
10/3/2016 17 17 6/14/2017 23 24
10/4/2016 18 18 6/19/2017 23 23
10/5/2016 18 18 6/20/2017 23 23
10/10/2016 14 14 6/21/2017 23 23
10/11/2016 14 14 6/26/2017 21 21
10/12/2016 14 14 6/27/2017 22 22
10/17/2016 16 16 6/28/2017 21 21
10/18/2016 17 17 7/3/2017 23 23
10/19/2016 17 17 7/4/2017 22 22
10/24/2016 13 13 7/5/2017 22 22
10/25/2016 13 13 7/10/2017 23 23
10/26/2016 13 13 7/11/2017 24 25
10/31/2016 13 13 7/12/2017 25 26
11/1/2016 13 13 7/17/2017 25 25
11/8/2016 11 11 7/18/2017 24 24
11/15/2016 11 11 7/19/2017 24 24
11/21/2016 8 9 7/24/2017 24 24
11/28/2016 8 8 7/25/2017 24 24
12/5/2016 9 9 7/26/2017 24 25
12/12/2016 8 8 7/31/2017 21 21
12/19/2016 9 9 8/1/2017 21 21
12/26/2016 11 12 8/2/2017 21 21
Date
Upstream
Temperature
[degC]
Downstream
Temperature
[degC]
Date
Upstream
Temperature
[degC]
Downstream
Temperature
[degC]
8/8/2017 24 24 4/11/2018 12 12
8/9/2017 23 23 4/18/2018 14 14
8/10/2017 23 23 4/27/2018 15 15
8/14/2017 23 23 5/3/2018 18 18
8/15/2017 23 23 5/9/2018 19 19
8/16/2017 23 23 5/17/2018 23 23
8/21/2017 24 24 5/23/2018 22 22
8/22/2017 24 24 5/31/2018 22 22
8/23/2017 24 24 6/5/2018 22 22
8/28/2017 23 23 6/6/2018 22 22
8/29/2017 22 22 6/7/2018 22 22
8/30/2017 22 22 6/12/2018 23 23
9/4/2017 20 20 6/13/2018 22 22
9/5/2017 20 20 6/14/2018 22 22
9/6/2017 19 19 6/19/2018 25 25
9/11/2017 18 18 6/20/2018 25 25
9/13/2017 19 19 6/21/2018 25 25
9/15/2017 20 21 6/26/2018 25 25
9/18/2017 20 20 6/27/2018 25 25
9/19/2017 20 20 6/28/2018 24 24
9/20/2017 20 20 7/2/2018 25 25
9/25/2017 21 21 7/3/2018 24 24
9/26/2017 21 21 7/5/2018 25 25
9/27/2017 22 22 7/10/2018 23 23
10/4/2017 16 16 7/11/2018 24 24
10/10/2017 23 23 7/12/2018 24 24
10/17/2017 15 16 7/17/2018 24 24
10/26/2017 15 15 7/18/2018 25 25
11/2/2017 15 15 7/19/2018 25 25
11/7/2017 17 17 7/24/2018 23 23
11/13/2017 13 13 7/25/2018 23 23
11/20/2017 13 14 7/27/2018 23 23
11/27/2017 10 10 7/31/2018 24 24
12/4/2017 11 11 8/1/2018 23 23
12/11/2017 7 7 8/2/2018 24 24
12/18/2017 8 8 8/7/2018 24 24
12/26/2017 7 7 8/8/2018 23 23
1/3/2018 3 3 8/9/2018 24 24
1/9/2018 4 4 8/14/2018 23 23
1/16/2018 5 5 8/15/2018 23 23
1/22/2018 7 7 8/16/2018 23 23
1/30/2018 7 7 8/21/2018 25 25
2/6/2018 7 7 8/22/2018 24 24
2/13/2018 8 8 8/23/2018 23 23
2/23/2018 14 14 8/28/2018 23 23
2/28/2018 12 12 8/29/2018 23 23
3/6/2018 10 10 8/30/2018 24 24
3/14/2018 9 9 9/4/2018 23 23
3/21/2018 12 12 9/5/2018 24 24
3/28/2018 12 12 9/6/2018 24 24
4/5/2018 12 12 9/11/2018 24 24
Date
Upstream
Temperature
[degC]
Downstream
Temperature
[degC]
Date
Upstream
Temperature
[degC]
Downstream
Temperature
[degC]
9/12/2018 24 24 6/20/2019 23 23
9/13/2018 24 24 6/25/2019 23 23
9/18/2018 24 24 6/26/2019 23 23
9/19/2018 24 24 6/27/2019 23 23
9/20/2018 23 23 7/1/2019 24 24
9/24/2018 23 23 7/2/2019 24 24
9/25/2018 22 22 7/3/2019 24 24
9/26/2018 22 22 7/9/2019 24 24
10/2/2018 21 21 7/10/2019 25 24
10/9/2018 23 23 7/11/2019 25 24
10/16/2018 20 20 7/16/2019 24 24
10/23/2018 14 14 7/17/2019 24 24
10/30/2018 13 13 7/18/2019 24 24
11/6/2018 15 15 7/23/2019 25 25
11/13/2018 13 13 7/24/2019 22 22
11/19/2018 12 11 7/25/2019 22 22
11/27/2018 9 9 7/30/2019 23 23
12/4/2018 9 9 7/31/2019 24 24
12/11/2018 7 7 8/1/2019 23 23
12/18/2018 8 8 8/6/2019 23 23
12/27/2018 9 8 8/7/2019 23 23
1/2/2019 11 11 8/8/2019 23 23
1/8/2019 11 11 8/13/2019 24 24
1/15/2019 8 8 8/14/2019 25 25
1/22/2019 6 6 8/15/2019 24 24
1/29/2019 8 8 8/20/2019 24 23
2/5/2019 9 9 8/21/2019 24 24
2/12/2019 10 10 8/22/2019 23 24
2/19/2019 9 9 8/27/2019 22 22
2/26/2019 10 10 8/28/2019 22 22
3/5/2019 10 10 8/29/2019 21 21
3/12/2019 10 10 9/3/2019 22 22
3/19/2019 10 10 9/4/2019 22 22
3/26/2019 12 12 9/5/2019 23 23
4/2/2019 11 11 9/9/2019 22 22
4/9/2019 17 17 9/10/2019 22 22
4/16/2019 15 15 9/11/2019 22 22
4/23/2019 16 16 9/17/2019 22 22
4/30/2019 17 17 9/18/2019 23 23
5/7/2019 19 19 9/19/2019 21 21
5/14/2019 18 18 9/23/2019 19 19
5/21/2019 21 21 9/24/2019 21 21
5/28/2019 22 22 9/25/2019 20 20
6/4/2019 21 21 10/1/2019 22 22
6/5/2019 21 21 10/8/2019 20 20
6/6/2019 22 22 10/15/2019 19 19
6/11/2019 22 22 10/22/2019 18 18
6/12/2019 21 21 10/29/2019 17 18
6/13/2019 20 20 11/5/2019 14 14
6/18/2019 24 24 11/12/2019 13 13
6/19/2019 23 23 11/19/2019 11 11
Date
Upstream
Temperature
[degC]
Downstream
Temperature
[degC]
11/25/2019 10 10
12/3/2019 9 9
12/10/2019 11 11
12/17/2019 12 12
12/23/2019 10 10
12/30/2019 12 12
1/7/2020 9 9
1/14/2020 12 12
1/21/2020 7 7
1/28/2020 8 8
t-Test: Two-Sample Assuming Equal Variances
24 24
Mean 18.60128617 18.62701
Variance 34.94374028 35.002365
Observations 311 311
Pooled Variance 34.97305259
Hypothesized Mean Difference 0
df 620
t Stat -0.054241042
P(T<=t) one-tail 0.478380297
t Critical one-tail 1.647315018
P(T<=t) two-tail 0.956760595
t Critical two-tail 1.963797582
NC0021601 Instream Temperature Summary
Date Upstream
DO [mg/L]
Downstream
DO [mg/L]Date Upstream
DO [mg/L]
Downstream
DO [mg/L]
8/1/2016 6.6 6.7 1/3/2017 11.8 10.7
8/2/2016 7.2 7 1/10/2017 12.2 11.8
8/3/2016 7.3 7.6 1/18/2017 10.2 9.3
8/8/2016 7.2 7.1 1/24/2017 11.2 10.9
8/9/2016 7.6 7 1/30/2017 11.2 10.8
8/10/2016 7.6 7.1 2/6/2017 11.2 10.3
8/15/2016 7.2 7.2 2/13/2017 11.1 10.8
8/16/2016 7.3 7.4 2/20/2017 10.2 9.6
8/17/2016 7.5 7.6 2/27/2017 10.5 9.7
8/22/2016 6.9 6.8 3/6/2017 10.2 8.8
8/23/2016 6.9 7.4 3/14/2017 10.4 9
8/24/2016 7 7.2 3/20/2017 10.8 9.2
8/29/2016 6.8 6.9 3/27/2017 9.1 8.3
8/30/2016 7.6 7.2 4/3/2017 9.4 8.2
8/31/2016 7.8 7.6 4/10/2017 9.2 8.9
9/5/2016 7.9 7.8 4/17/2017 7.2 5.8
9/6/2016 7.3 7.7 4/25/2017 9.4 9.1
9/7/2016 7.2 7.6 5/1/2017 9.4 9.2
9/12/2016 7.1 7.3 5/8/2017 10.4 8.4
9/13/2016 7.2 7.5 5/16/2017 9.2 8.3
9/14/2016 7.1 7.3 5/22/2017 8.8 8.5
9/19/2016 7.3 7.2 5/30/2017 8.4 8.3
9/20/2016 7.4 7.1 6/5/2017 6.7 6.6
9/21/2016 7.3 7 6/6/2017 6.4 6.3
9/26/2016 7.2 7.3 6/7/2017 6.6 6.4
9/27/2016 7 7.2 6/12/2017 7.6 7.4
9/28/2016 7.2 7.1 6/13/2017 8.5 8.3
10/3/2016 8.4 8.1 6/14/2017 8.3 7.9
10/4/2016 8.3 8 6/19/2017 7.4 7
10/5/2016 8.2 7.8 6/20/2017 7 7.2
10/10/2016 8.4 8.3 6/21/2017 7.3 7.2
10/11/2016 8.5 8.8 6/26/2017 8 7.9
10/12/2016 8.2 8.5 6/27/2017 7.6 7.9
10/17/2016 8.8 8.4 6/28/2017 7.7 7.7
10/18/2016 8.4 8.3 7/3/2017 7.8 7.7
10/19/2016 8.3 8.3 7/4/2017 8 7.8
10/24/2016 8.3 8.6 7/5/2017 8.4 7.9
10/25/2016 8.4 8.8 7/10/2017 8.3 7.5
10/26/2016 8.4 8.7 7/11/2017 9.2 8.4
10/31/2016 8.5 8.6 7/12/2017 8.8 8.2
11/1/2016 8.4 8.2 7/17/2017 7.7 7
11/8/2016 8.9 8.7 7/18/2017 8.2 7.4
11/15/2016 8.9 8.5 7/19/2017 8 7.5
11/21/2016 10.2 9.8 7/24/2017 7.9 7.8
11/28/2016 10.5 8.8 7/25/2017 8.2 8.1
12/5/2016 8.4 8.8 7/26/2017 8.4 8
12/12/2016 8.6 9.4 7/31/2017 8.9 8.8
12/19/2016 14 11 8/1/2017 8.9 8.7
12/26/2016 12.9 10.5 8/2/2017 8.8 8.6
Date Upstream
DO [mg/L]
Downstream
DO [mg/L]Date Upstream
DO [mg/L]
Downstream
DO [mg/L]
8/8/2017 8.1 8 4/11/2018 10.6 10.1
8/9/2017 8 7.7 4/18/2018 9 8.8
8/10/2017 8.1 7.9 4/27/2018 9.8 9.7
8/14/2017 8.7 8.1 5/3/2018 8.8 8.6
8/15/2017 8.4 8.1 5/9/2018 8.6 8.5
8/16/2017 8.6 8.2 5/17/2018 7.6 7.4
8/21/2017 8.2 8 5/24/2018 8.4 8.2
8/22/2017 8.5 8.1 5/31/2018 8.6 8.6
8/23/2017 8.5 7.9 6/5/2018 9.1 8.8
8/28/2017 8.7 8.4 6/6/2018 8.9 8.5
8/29/2017 8.9 8.6 6/7/2018 8.7 8.3
8/30/2017 8.6 8 6/12/2018 7.7 7.7
9/4/2017 8.6 8.2 6/13/2018 7.8 7.5
9/5/2017 8.6 7.9 6/14/2018 8.2 8
9/6/2017 8.8 8.4 6/19/2018 8 8.4
9/11/2017 8.9 8.6 6/20/2018 7.2 7
9/13/2017 10.1 9.6 6/21/2018 7 7
9/15/2017 9.2 8.8 6/26/2018 7.1 7
9/18/2017 8.8 8.5 6/27/2018 7.4 7.7
9/19/2017 8.6 8.5 6/28/2018 7.6 7.6
9/20/2017 8.4 8.6 7/2/2018 7.4 7.5
9/25/2017 8.5 8.4 7/3/2018 7.5 7.3
9/26/2017 8.2 8 7/5/2018 7.4 7.4
9/27/2017 8.5 8.1 7/10/2018 7.3 7.3
10/4/2017 10.9 10.3 7/11/2018 7.3 7.3
10/10/2017 8.5 8.2 7/12/2018 7.7 7.7
10/17/2017 9.6 9.4 7/17/2018 7.2 7
10/26/2017 8.9 8.7 7/18/2018 7.5 7.5
11/2/2017 10.9 10.3 7/19/2018 7.4 7.3
11/7/2017 10.4 10.1 7/24/2018 7.5 7.4
11/13/2017 10.2 10.1 7/25/2018 7.6 7.6
11/20/2017 10.1 9.9 7/27/2018 7.9 7.7
11/27/2017 9.8 9.1 7/31/2018 7.1 6.9
12/4/2017 11.8 10.8 8/1/2018 7.7 7.6
12/11/2017 10.4 10.3 8/2/2018 7.6 7.6
12/18/2017 12.4 10.6 8/7/2018 7.7 7.7
12/26/2017 12.8 12.4 8/8/2018 7.2 7.1
1/3/2018 14.4 13.9 8/9/2018 7.1 7.2
1/9/2018 11.9 12.2 8/14/2018 7.7 7.7
1/16/2018 11.7 11.6 8/15/2018 7.8 7.2
1/22/2018 10.6 10.3 8/16/2018 7.4 7.2
1/30/2018 11.1 10.8 8/21/2018 6.9 7
2/6/2018 9.8 9.6 8/22/2018 7 7.2
2/13/2018 9.4 9.2 8/23/2018 8 7.8
2/23/2018 9.2 8.7 8/28/2018 7.5 7.4
2/28/2018 8.7 8.6 8/29/2018 7.5 7.2
3/6/2018 11.9 11.1 8/30/2018 7.6 7.6
3/14/2018 11.2 10.8 9/4/2018 7.2 7.2
3/21/2018 11.7 11.4 9/5/2018 7.1 7.2
3/28/2018 11.2 11 9/6/2018 7.3 7
4/5/2018 10.4 10.2 9/11/2018 7.1 7
Date Upstream
DO [mg/L]
Downstream
DO [mg/L]Date Upstream
DO [mg/L]
Downstream
DO [mg/L]
9/12/2018 6.7 6.8 6/20/2019 7.8 7.6
9/13/2018 7.1 7.2 6/25/2019 7.5 7.4
9/18/2018 7.5 7.3 6/26/2019 6.9 7.2
9/19/2018 7.5 7.3 6/27/2019 7.9 7.8
9/20/2018 7.8 7.4 7/1/2019 7.9 7.7
9/24/2018 7.5 7.4 7/2/2019 7.3 7.2
9/25/2018 8 8.1 7/3/2019 7.7 7.6
9/26/2018 7.7 7.6 7/9/2019 8 7.7
10/2/2018 8.1 8.1 7/10/2019 6.8 6.8
10/9/2018 7.7 7.4 7/11/2019 7.3 7.2
10/16/2018 8 8.1 7/16/2019 7 6.9
10/23/2018 9.3 8.8 7/17/2019 7.2 6.9
10/30/2018 9.6 9.2 7/18/2019 7.2 7
11/6/2018 8.8 9.3 7/23/2019 7.6 7.6
11/13/2018 10.5 10.8 7/24/2019 7.6 7.7
11/19/2018 11.1 10.4 7/25/2019 7.8 7.5
11/27/2018 10.5 11.5 7/30/2019 6.9 7.1
12/4/2018 11.1 10.7 7/31/2019 7.9 7.7
12/11/2018 11.9 12.2 8/1/2019 7.3 7.4
12/18/2018 10.6 11.2 8/6/2019 7.4 7.4
12/27/2018 11.6 11.4 8/7/2019 7.5 7.4
1/2/2019 10.6 10.2 8/8/2019 7.3 7.2
1/8/2019 10.3 10.1 8/13/2019 6.9 6.9
1/15/2019 11.4 11.4 8/14/2019 7 6.9
1/22/2019 11.3 12 8/15/2019 7 7
1/29/2019 11.2 11.3 8/20/2019 6.4 7.2
2/5/2019 10.4 11.1 8/21/2019 7.6 7.5
2/12/2019 11.5 12.3 8/22/2019 7.3 7.1
2/19/2019 11.4 11.2 8/27/2019 7.8 7.4
2/26/2019 11.1 11.3 8/28/2019 8.2 7.9
3/5/2019 12.1 11.06 8/29/2019 7.2 7.8
3/12/2019 11.1 11.1 9/3/2019 7.5 7.4
3/19/2019 10.7 10.2 9/4/2019 7.3 7.5
3/26/2019 9.8 10 9/5/2019 6.9 7.5
4/2/2019 10 10.1 9/9/2019 7.5 7.3
4/9/2019 9.2 9.2 9/10/2019 7.2 7.3
4/16/2019 8.9 9 9/11/2019 7.2 7.2
4/23/2019 9.2 9.1 9/17/2019 7.4 7.3
4/30/2019 8.4 8.7 9/18/2019 7.2 7.1
5/7/2019 8 8 9/19/2019 7.5 7.1
5/14/2019 8.4 8.5 9/23/2019 7.9 7.8
5/21/2019 7.8 7.7 9/24/2019 7.8 7.6
5/28/2019 7.5 7.3 9/25/2019 8.2 8.1
6/4/2019 7.9 7.7 10/1/2019 7.9 7.6
6/5/2019 8.2 7.7 10/8/2019 7.8 7.7
6/6/2019 7.4 7.6 10/15/2019 8.4 8.2
6/11/2019 7.9 8 10/22/2019 8.5 8.3
6/12/2019 8.7 8.5 10/29/2019 8.6 8.4
6/13/2019 8.5 8.4 11/5/2019 9.5 9.6
6/18/2019 7.4 7.5 11/12/2019 9.8 9.7
6/19/2019 7.5 7.8 11/19/2019 10.2 10.4
Date Upstream
DO [mg/L]
Downstream
DO [mg/L]
11/25/2019 11.1 10.9
12/3/2019 11.4 11.5
12/10/2019 10.6 10.7
12/17/2019 10.9 10.2
12/23/2019 11.9 11.7
12/30/2019 11 11.1
1/7/2020 11.6 11.7
1/14/2020 10.5 10.8
1/21/2020 12.8 12.9
1/28/2020 12.6 13.2
t-Test: Two-Sample Assuming Unequal Variances
6.6 6.7
Mean 8.662700965 8.477041801
Variance 2.414152681 2.125224769
Observations 311 311
Hypothesized Mean Difference0
df 617
t Stat 1.536733069
P(T<=t) one-tail 0.06243566
t Critical one-tail1.647327004
P(T<=t) two-tail0.124871319
t Critical two-tail1.963816258
NC0021601 Instream Temperature Summary
Date
Upstream
Conductivity
[umhos/cm]
Downstream
Conductivity
[umhos/cm]
Date
Upstream
Conductivity
[umhos/cm]
Downstream
Conductivity
[umhos/cm]
8/1/2016 51 89 1/3/2017 42 52
8/2/2016 49 55 1/10/2017 38 47
8/3/2016 52 56 1/18/2017 48 98
8/8/2016 54 88 1/24/2017 43 55
8/9/2016 53 90 1/30/2017 48 56
8/10/2016 48 82 2/6/2017 45 75
8/15/2016 53 72 2/13/2017 46 71
8/16/2016 56 70 2/20/2017 54 80
8/17/2016 53 69 2/27/2017 50 82
8/22/2016 55 72 3/6/2017 51 96
8/23/2016 53 99 3/14/2017 54 86
8/24/2016 53 94 3/20/2017 52 84
8/29/2016 50 88 3/27/2017 45 68
8/30/2016 67 108 4/3/2017 45 65
8/31/2016 70 128 4/10/2017 47 59
9/5/2016 55 64 4/17/2017 52 76
9/6/2016 56 88 4/24/2017 44 45
9/7/2016 55 83 5/1/2017 48 68
9/12/2016 54 93 5/8/2017 42 59
9/13/2016 56 91 5/16/2017 54 87
9/14/2016 62 108 5/22/2017 48 54
9/19/2016 74 137 5/30/2017 52 62
9/20/2016 68 148 6/5/2017 46 72
9/21/2016 57 162 6/6/2017 44 75
9/26/2016 60 167 6/7/2017 48 73
9/27/2016 59 158 6/12/2017 49 83
9/28/2016 68 171 6/13/2017 48 133
10/3/2016 46 106 6/14/2017 52 140
10/4/2016 54 111 6/19/2017 49 92
10/5/2016 61 114 6/20/2017 44 94
10/10/2016 42 86 6/21/2017 52 90
10/11/2016 44 112 6/26/2017 58 120
10/12/2016 53 91 6/27/2017 44 110
10/17/2016 46 84 6/28/2017 54 112
10/18/2016 52 76 7/3/2017 45 92
10/19/2016 52 84 7/4/2017 44 96
10/24/2016 66 86 7/5/2017 48 108
10/25/2016 71 88 7/10/2017 49 66
10/26/2016 68 86 7/11/2017 44 50
10/31/2016 74 98 7/12/2017 42 52
11/1/2016 57 96 7/17/2017 40 49
11/8/2016 55 111 7/18/2017 43 50
11/15/2016 87 150 7/19/2017 41 58
11/21/2016 53 78 7/24/2017 41 77
11/28/2016 53 85 7/25/2017 51 89
12/5/2016 47 57 7/26/2017 54 118
12/12/2016 44 62 7/31/2017 52 87
12/19/2016 46 72 8/1/2017 48 83
12/26/2016 44 54 8/2/2017 57 82
Date
Upstream
Conductivity
[umhos/cm]
Downstream
Conductivity
[umhos/cm]
Date
Upstream
Conductivity
[umhos/cm]
Downstream
Conductivity
[umhos/cm]
8/8/2017 48 71 4/11/2018 44 83
8/9/2017 49 87 4/18/2018 38 55
8/10/2017 52 92 4/27/2018 37 53
8/14/2017 44 110 5/3/2018 39 67
8/15/2017 49 98 5/9/2018 44 71
8/16/2017 42 86 5/17/2018 38 47
8/21/2017 44 93 5/23/2018 43 54
8/22/2017 48 98 5/31/2018 44 51
8/23/2017 42 102 6/5/2018 38 62
8/28/2017 40 78 6/6/2018 36 64
8/29/2017 57 94 6/7/2018 34 61
8/30/2017 52 79 6/12/2018 36 55
9/4/2017 42 78 6/13/2018 36 42
9/5/2017 47 79 6/14/2018 34 32
9/6/2017 52 102 6/19/2018 39 69
9/11/2017 43 81 6/20/2018 39 70
9/13/2017 41 92 6/21/2018 39 71
9/15/2017 46 102 6/26/2018 36 47
9/18/2017 41 67 6/27/2018 36 47
9/19/2017 44 62 6/28/2018 37 47
9/20/2017 44 76 7/2/2018 41 49
9/25/2017 41 81 7/3/2018 41 43
9/26/2017 39 78 7/5/2018 33 40
9/27/2017 44 79 7/10/2018 42 45
10/4/2017 53 124 7/11/2018 39 44
10/10/2017 43 53 7/12/2018 40 42
10/17/2017 49 56 7/17/2018 42 45
10/26/2017 52 72 7/18/2018 39 44
11/2/2017 43 92 7/19/2018 43 45
11/7/2017 53 74 7/24/2018 44 47
11/13/2017 52 78 7/25/2018 42 44
11/20/2017 48 102 7/27/2018 45 79
11/27/2017 44 56 7/31/2018 49 53
12/4/2017 42 98 8/1/2018 39 42
12/11/2017 44 63 8/2/2018 38 40
12/18/2017 44 70 8/7/2018 42 49
12/26/2017 40 68 8/8/2018 45 73
1/3/2018 44 67 8/9/2018 42 65
1/9/2018 43 71 8/14/2018 44 66
1/16/2018 46 76 8/15/2018 46 75
1/22/2018 42 82 8/16/2018 45 80
1/30/2018 52 86 8/21/2018 42 61
2/6/2018 43 87 8/22/2018 44 44
2/13/2018 40 91 8/23/2018 43 88
2/23/2018 36 51 8/28/2018 45 76
2/28/2018 44 76 8/29/2018 47 93
3/6/2018 35 57 8/30/2018 49 103
3/14/2018 40 68 9/4/2018 50 76
3/21/2018 44 83 9/5/2018 48 84
3/28/2018 38 60 9/6/2018 50 109
4/5/2018 40 72 9/11/2018 46 93
Date
Upstream
Conductivity
[umhos/cm]
Downstream
Conductivity
[umhos/cm]
Date
Upstream
Conductivity
[umhos/cm]
Downstream
Conductivity
[umhos/cm]
9/12/2018 48 132 6/20/2019 49 47
9/13/2018 50 118 6/25/2019 41 46
9/18/2018 43 56 6/26/2019 42 49
9/19/2018 45 70 6/27/2019 44 51
9/20/2018 47 75 7/1/2019 45 52
9/24/2018 49 72 7/2/2019 46 54
9/25/2018 46 73 7/3/2019 45 54
9/26/2018 44 73 7/9/2019 47 54
10/2/2018 44 54 7/10/2019 46 56
10/9/2018 48 59 7/11/2019 46 51
10/16/2018 39 44 7/16/2019 46 53
10/23/2018 35 41 7/17/2019 47 57
10/30/2018 33 38 7/18/2019 47 59
11/6/2018 32 40 7/23/2019 44 50
11/13/2018 27 29 7/24/2019 44 51
11/19/2018 28 30 7/25/2019 43 50
11/27/2018 26 29 7/30/2019 46 55
12/4/2018 27 30 7/31/2019 45 52
12/11/2018 27 39 8/1/2019 47 55
12/18/2018 25 26 8/6/2019 46 53
12/27/2018 23 25 8/7/2019 46 50
1/2/2019 24 25 8/8/2019 47 56
1/8/2019 24 27 8/13/2019 50 57
1/15/2019 23 25 8/14/2019 44 52
1/22/2019 22 24 8/15/2019 47 59
1/29/2019 23 25 8/20/2019 46 58
2/5/2019 24 27 8/21/2019 46 56
2/12/2019 25 26 8/22/2019 47 56
2/19/2019 23 25 8/27/2019 46 54
2/26/2019 22 23 8/28/2019 43 50
3/5/2019 22.4 24.4 8/29/2019 45 54
3/12/2019 24 25 9/3/2019 48 55
3/19/2019 24 26 9/4/2019 44 56
3/26/2019 26 28 9/5/2019 50 58
4/2/2019 26 29 9/9/2019 49 60
4/9/2019 29 31 9/10/2019 51 61
4/16/2019 28 30 9/11/2019 51 64
4/23/2019 29 32 9/17/2019 49 60
4/30/2019 32 35 9/18/2019 49 61
5/7/2019 34 37 9/19/2019 48 62
5/14/2019 32 36 9/23/2019 45 54
5/21/2019 35 38 9/24/2019 48 60
5/28/2019 37 41 9/25/2019 46 60
6/4/2019 38 43 10/1/2019 49 50
6/5/2019 39 43 10/8/2019 45 54
6/6/2019 38 43 10/15/2019 40 47
6/11/2019 32 36 10/22/2019 40 46
6/12/2019 34 38 10/29/2019 38 45
6/13/2019 34 38 11/5/2019 34 38
6/18/2019 34 38 11/12/2019 36 42
6/19/2019 36 39 11/19/2019 33 37
Date
Upstream
Conductivity
[umhos/cm]
Downstream
Conductivity
[umhos/cm]
11/25/2019 29 33
12/3/2019 28 32
12/10/2019 30 33
12/17/2019 26 39
12/23/2019 24 31
12/30/2019 26 27
1/7/2020 25 28
1/14/2020 25 27
1/21/2020 23 26
1/28/2020 23 26
t-Test: Two-Sample Assuming Unequal Variances
51 89
Mean 43.92733119 66.946624
Variance 96.84489576 771.96088
Observations 311 311
Hypothesized Mean Difference0
df 387
t Stat -13.77243772
P(T<=t) one-tail 1.0645E-35
t Critical one-tail1.648800515
P(T<=t) two-tail 2.129E-35
t Critical two-tail 1.966112774
NPDES/Aquifer Protection Permitting Unit Pretreatment Information Request Form
PERMIT WRITER COMPLETES THIS PART:
Check all that apply
Date of Request 3/12/2020 municipal renewal X
Requestor Nicholas Coco new industries
Facility Name Tryon WWTP WWTP expansion
Permit Number NC0021601 Speculative limits
Region Asheville stream reclass.
Basin Broad River outfall relocation
7Q10 change
other
other
check applicable PERCS staff:
BRD, CPF, CTB, FRB, TAR - Vivien Zhong (807-6310)
CHO, HIW, LTN, LUM, NES, NEW, ROA, YAD
√ - Monti Hassan (807-6314)
PERCS PRETREATMENT STAFF COMPLETES THIS PART:
Status of Pretreatment Program (check all that apply)
1) facility has no SIU's, does have Division approved Pretreatment Program that is INACTIVE
2) facility has no SIU's, does not have Division approved Pretreatment Program
3) facility has SIUs and DWQ approved Pretreatment Program (list "DEV" if program still under development)
3a) Full Program with LTMP
X 3b) Modified Program with STMP
4) additional conditions regarding Pretreatment attached or listed below
Flow, MGD Permitted Actual STMP time frame:
Industrial 0.175 0.1152 Most recent:June 2017 - March 2018
Uncontrollable n/a 0.2118 Next Cycle:June 2022 - March 2023
POC in LTMP/ STMPParameter of
Concern (POC)
Check List
POC due to
NPDES/ Non-
Disch Permit
Limit
Required by
EPA*
Required
by 503
Sludge**
POC due
to SIU***
POTW POC
(Explain
below)****
STMP
Effluent
Freq
LTMP
Effluent
Freq
X BOD X X 4
X TSS X X 4
X NH3 X 4
X Arsenic X 4
X Cadmium X X 4
X Chromium X 4
X Copper X X X 4
4
X Lead X X 4 YES X
X Mercury X 4 NO (attach data)
X Molybdenum X 4
X Nickel X X 4
4
X Selenium X 4
X Zinc X X X 4
4 YES (email to writer)X
X Phosphorus 4 NO
4
4
4
4
*Always in the LTMP/STMP ** Only in LTMP/STMP if sludge land app or composte (dif POCs for incinerators)
*** Only in LTMP/STMP while SIU still discharges to POTW **** Only in LTMP/STMP when pollutant is still of concern to POTW
Is all data on DMRs?
Is data in spreadsheet?
Time period for Actual
June 2017 - March 2018
June 2017 - March 2018
PERMIT WRITERS -AFTER you get this form back
from PERCS:
-Notify PERCS if LTMP/STMP data we said should be on DMRs is not really there, so we can get it for you
(or NOV POTW).
-Notify PERCS if you want us to keep a specific POC
in LTMP/STMP so you will have data for next permit
renewal.
-Email PERCS draft permit, fact sheet, RPA.-Send PERCS paper copy of permit (w/o NPDES
boilerplate), cover letter, final fact sheet. Email RPA if
changes.
Comments to Permit Writer (ex., explanation of any POCs; info you have on IU related investigations into NPDES problems):
Other Comments to PERCS:
Facility is rated 1.5 MGD wtih 1 SIU listed in its application.
PERC NPDES_Pretreatment.request.form.03122020
Revised: July 24, 2007
Whole Effluent Toxicity Testing and Self Monitoring Summary Transmontaigne‐Southeast TerminalNC0026247/001Acu Fthd 24hr PF LimFthd24PFBegin:1/1/2017Freq:ANonComp:County:GuilfordRegion:WSROBasin:CPF087Q10:0.0IWC:100SOC_JOC:PF:NAJFMAMJJASOND2016 >100‐‐‐‐‐‐‐‐‐‐‐2017 >100‐‐‐‐‐‐‐‐‐‐‐2018 >100‐‐‐‐‐‐‐‐‐‐‐2019 >100‐‐‐‐‐‐‐‐‐‐‐Transportation NCDOT‐ Rosman+NC0085979/001Acu Fthd 24hr PF MoFthd24PFBegin:3/1/2016Freq:QJan Apr Jul OctNonComp:SingleCounty:TransylvaniaRegion:AROBasin:FRB017Q10:725IWC:0.01SOC_JOC:PF:0.028JFMAMJJASOND2016 Pass‐‐Pass‐‐Pass‐‐Pass‐‐2017 H‐‐H‐PassPass‐‐Pass‐‐2018 Pass‐‐Pass‐‐Pass‐‐Pass‐‐2019 Pass‐‐Pass‐‐Pass‐‐Pass‐‐Transportation, NC Dept of ‐SurryNC0029190/001chr lim: 13%Ceri7dPFBegin:4/1/2009Freq:QFeb May Aug NovNonComp:SingleCounty:SurryRegion:WSROBasin:YAD037Q10:0.3IWC:13SOC_JOC:PF:0.030JFMAMJJASOND2016‐Fail>269.2Pass‐‐Pass‐‐Pass‐2017‐Pass‐‐Pass‐‐Pass‐‐Pass‐2018‐Pass‐‐Pass‐‐Pass‐‐Pass‐2019‐Pass‐‐Pass‐‐Pass‐‐Pass‐Troy WWTPNC0028916/001Chr lim 84%Ceri7dPFBegin:8/1/2015Freq:QJan Apr Jul OctNonComp:SingleCounty:MontgomeryRegion:FROBasin:YAD157Q10:0.35IWC:84SOC_JOC:PF:1.2JFMAMJJASOND2016 Pass‐‐Pass‐‐Pass‐‐Pass‐‐2017 Pass‐‐Pass‐‐Pass‐‐Pass‐‐2018 Pass >100(P)‐‐Pass >100(P)‐‐Pass >100(P)‐‐Pass >100(P)‐‐2019 Pass‐‐Pass‐‐Pass‐‐Pass‐‐2020 Pass‐‐‐‐‐‐‐‐‐‐‐Tryon WWTPNC0021601/001chr lim: 37%Ceri7dPFBegin:6/1/2016Freq:QMar Jun Sep DecNonComp:SingleCounty:PolkRegion:AROBasin:BRD067Q10:4.00IWC:37.0SOC_JOC:PF:1.5JFMAMJJASOND2016‐‐Pass >100(P)‐‐Pass‐‐Pass‐‐Pass2017‐‐Pass‐‐>100(P) Pass‐‐Pass‐‐Pass2018‐‐Pass >100(P)‐‐Pass‐‐Pass‐‐Pass2019‐‐Pass‐‐Pass‐‐>100(P) Pass‐‐PassTuckasegee WSA WWTPNC0039578/001CHR LIM: 3.5% @ 3.5 Ceri7dPFBegin:8/1/2019Freq:QFeb May Aug NovNonComp:SingleCounty:JacksonRegion:AROBasin:LTN027Q10:149.6IWC:1.5SOC_JOC:PF:3.5JFMAMJJASOND2016‐Pass‐‐>14(P) Pass‐‐Pass >14(P)‐‐>14(P) Pass‐2017‐>14(P) Pass‐‐Pass‐‐Pass‐‐Pass‐2018‐Pass‐‐Pass‐‐Pass‐‐Pass‐2019‐Pass‐‐Pass‐‐Pass‐‐Pass‐Page 99 of 109Legend:  P= Fathead minnow (Pimphales promelas), H=No Flow (facility is active), s = Split test between Certified Labs
MRs Between and Violation Category:Program Category:
Param Name County:Subbasin:%Violation Action:
Major Minor:%
Permit:
Facility Name:
Region:--NC0021601
%%
%
%
Limit Violation %
%
8 2016 2 2020
MONITORING REPORT(MR) VIOLATIONS for:03/10/20Report Date:1Page:of 25
PERMIT:NC0021601 FACILITY:Town of Tryon - Tryon WWTP COUNTY:Polk REGION:Asheville
%
Over
UNIT OF
MEASURE VIOLATION ACTIONVIOLATION TYPECALCULATED
VALUELIMITFREQUENCYVIOLATION
DATEPARAMETERLOCATIONMONITORING
REPORT
Limit Violation
OUTFALL
08 - 2016 001 Effluent Chlorine, Total Residual 08/01/16 3 X week Daily Maximum
Exceeded
No Action, BPJ4028ug/l 42.9
08 - 2016 001 Effluent Chlorine, Total Residual 08/22/16 3 X week Daily Maximum
Exceeded
No Action, BPJ3028ug/l 7.1
08 - 2016 001 Effluent Chlorine, Total Residual 08/23/16 3 X week Daily Maximum
Exceeded
No Action, BPJ3028ug/l 7.1
08 - 2016 001 Effluent Chlorine, Total Residual 08/30/16 3 X week Daily Maximum
Exceeded
No Action, BPJ3928ug/l 39.3
09 - 2016 001 Effluent Chlorine, Total Residual 09/05/16 3 X week Daily Maximum
Exceeded
No Action, BPJ4828ug/l 71.4
09 - 2016 001 Effluent Chlorine, Total Residual 09/06/16 3 X week Daily Maximum
Exceeded
No Action, BPJ3828ug/l 35.7
09 - 2016 001 Effluent Chlorine, Total Residual 09/12/16 3 X week Daily Maximum
Exceeded
No Action, BPJ3228ug/l 14.3
09 - 2016 001 Effluent Chlorine, Total Residual 09/13/16 3 X week Daily Maximum
Exceeded
No Action, BPJ4728ug/l 67.9
09 - 2016 001 Effluent Chlorine, Total Residual 09/14/16 3 X week Daily Maximum
Exceeded
No Action, BPJ3528ug/l 25
09 - 2016 001 Effluent Chlorine, Total Residual 09/19/16 3 X week Daily Maximum
Exceeded
No Action, BPJ4328ug/l 53.6
09 - 2016 001 Effluent Chlorine, Total Residual 09/20/16 3 X week Daily Maximum
Exceeded
No Action, BPJ3328ug/l 17.9
09 - 2016 001 Effluent Chlorine, Total Residual 09/26/16 3 X week Daily Maximum
Exceeded
No Action, BPJ4428ug/l 57.1
09 - 2016 001 Effluent Chlorine, Total Residual 09/28/16 3 X week Daily Maximum
Exceeded
No Action, BPJ4028ug/l 42.9
10 - 2016 001 Effluent Chlorine, Total Residual 10/03/16 3 X week Daily Maximum
Exceeded
No Action, BPJ4228ug/l 50
10 - 2016 001 Effluent Chlorine, Total Residual 10/04/16 3 X week Daily Maximum
Exceeded
No Action, BPJ3328ug/l 17.9
10 - 2016 001 Effluent Chlorine, Total Residual 10/11/16 3 X week Daily Maximum
Exceeded
No Action, BPJ3428ug/l 21.4
MRs Between and Violation Category:Program Category:
Param Name County:Subbasin:%Violation Action:
Major Minor:%
Permit:
Facility Name:
Region:--NC0021601
%%
%
%
Limit Violation %
%
8 2016 2 2020
MONITORING REPORT(MR) VIOLATIONS for:03/10/20Report Date:2Page:of 25
PERMIT:NC0021601 FACILITY:Town of Tryon - Tryon WWTP COUNTY:Polk REGION:Asheville
%
Over
UNIT OF
MEASURE VIOLATION ACTIONVIOLATION TYPECALCULATED
VALUELIMITFREQUENCYVIOLATION
DATEPARAMETERLOCATIONMONITORING
REPORT
Limit Violation
OUTFALL
10 - 2016 001 Effluent Chlorine, Total Residual 10/12/16 3 X week Daily Maximum
Exceeded
No Action, BPJ3228ug/l 14.3
10 - 2016 001 Effluent Chlorine, Total Residual 10/17/16 3 X week Daily Maximum
Exceeded
No Action, BPJ4428ug/l 57.1
10 - 2016 001 Effluent Chlorine, Total Residual 10/18/16 3 X week Daily Maximum
Exceeded
No Action, BPJ4828ug/l 71.4
10 - 2016 001 Effluent Chlorine, Total Residual 10/19/16 3 X week Daily Maximum
Exceeded
No Action, BPJ4428ug/l 57.1
10 - 2016 001 Effluent Chlorine, Total Residual 10/24/16 3 X week Daily Maximum
Exceeded
No Action, BPJ4228ug/l 50
10 - 2016 001 Effluent Chlorine, Total Residual 10/25/16 3 X week Daily Maximum
Exceeded
No Action, BPJ3328ug/l 17.9
10 - 2016 001 Effluent Chlorine, Total Residual 10/26/16 3 X week Daily Maximum
Exceeded
No Action, BPJ4028ug/l 42.9
10 - 2016 001 Effluent Chlorine, Total Residual 10/31/16 3 X week Daily Maximum
Exceeded
No Action, BPJ4328ug/l 53.6
11 - 2016 001 Effluent Chlorine, Total Residual 11/01/16 3 X week Daily Maximum
Exceeded
No Action, BPJ4228ug/l 50
11 - 2016 001 Effluent Chlorine, Total Residual 11/02/16 3 X week Daily Maximum
Exceeded
No Action, BPJ3328ug/l 17.9
11 - 2016 001 Effluent Chlorine, Total Residual 11/07/16 3 X week Daily Maximum
Exceeded
No Action, BPJ4128ug/l 46.4
11 - 2016 001 Effluent Chlorine, Total Residual 11/08/16 3 X week Daily Maximum
Exceeded
No Action, BPJ3828ug/l 35.7
11 - 2016 001 Effluent Chlorine, Total Residual 11/09/16 3 X week Daily Maximum
Exceeded
No Action, BPJ4528ug/l 60.7
11 - 2016 001 Effluent Chlorine, Total Residual 11/14/16 3 X week Daily Maximum
Exceeded
No Action, BPJ4428ug/l 57.1
11 - 2016 001 Effluent Chlorine, Total Residual 11/16/16 3 X week Daily Maximum
Exceeded
No Action, BPJ3228ug/l 14.3
11 - 2016 001 Effluent Chlorine, Total Residual 11/28/16 3 X week Daily Maximum
Exceeded
No Action, BPJ4228ug/l 50
MRs Between and Violation Category:Program Category:
Param Name County:Subbasin:%Violation Action:
Major Minor:%
Permit:
Facility Name:
Region:--NC0021601
%%
%
%
Limit Violation %
%
8 2016 2 2020
MONITORING REPORT(MR) VIOLATIONS for:03/10/20Report Date:3Page:of 25
PERMIT:NC0021601 FACILITY:Town of Tryon - Tryon WWTP COUNTY:Polk REGION:Asheville
%
Over
UNIT OF
MEASURE VIOLATION ACTIONVIOLATION TYPECALCULATED
VALUELIMITFREQUENCYVIOLATION
DATEPARAMETERLOCATIONMONITORING
REPORT
Limit Violation
OUTFALL
11 - 2016 001 Effluent Chlorine, Total Residual 11/30/16 3 X week Daily Maximum
Exceeded
No Action, BPJ3728ug/l 32.1
12 - 2016 001 Effluent Chlorine, Total Residual 12/05/16 3 X week Daily Maximum
Exceeded
No Action, BPJ4828ug/l 71.4
12 - 2016 001 Effluent Chlorine, Total Residual 12/06/16 3 X week Daily Maximum
Exceeded
No Action, BPJ4428ug/l 57.1
12 - 2016 001 Effluent Chlorine, Total Residual 12/07/16 3 X week Daily Maximum
Exceeded
No Action, BPJ3428ug/l 21.4
12 - 2016 001 Effluent Chlorine, Total Residual 12/12/16 3 X week Daily Maximum
Exceeded
No Action, BPJ3428ug/l 21.4
12 - 2016 001 Effluent Chlorine, Total Residual 12/13/16 3 X week Daily Maximum
Exceeded
No Action, BPJ4028ug/l 42.9
12 - 2016 001 Effluent Chlorine, Total Residual 12/14/16 3 X week Daily Maximum
Exceeded
No Action, BPJ3828ug/l 35.7
12 - 2016 001 Effluent Chlorine, Total Residual 12/19/16 3 X week Daily Maximum
Exceeded
No Action, BPJ3828ug/l 35.7
12 - 2016 001 Effluent Chlorine, Total Residual 12/20/16 3 X week Daily Maximum
Exceeded
No Action, BPJ4828ug/l 71.4
12 - 2016 001 Effluent Chlorine, Total Residual 12/21/16 3 X week Daily Maximum
Exceeded
No Action, BPJ4228ug/l 50
12 - 2016 001 Effluent Chlorine, Total Residual 12/26/16 3 X week Daily Maximum
Exceeded
No Action, BPJ3628ug/l 28.6
12 - 2016 001 Effluent Chlorine, Total Residual 12/27/16 3 X week Daily Maximum
Exceeded
No Action, BPJ3228ug/l 14.3
12 - 2016 001 Effluent Chlorine, Total Residual 12/28/16 3 X week Daily Maximum
Exceeded
No Action, BPJ4328ug/l 53.6
01 - 2017 001 Effluent Chlorine, Total Residual 01/02/17 3 X week Daily Maximum
Exceeded
No Action, BPJ3028ug/l 7.1
01 - 2017 001 Effluent Chlorine, Total Residual 01/03/17 3 X week Daily Maximum
Exceeded
No Action, BPJ3028ug/l 7.1
01 - 2017 001 Effluent Chlorine, Total Residual 01/04/17 3 X week Daily Maximum
Exceeded
No Action, BPJ3628ug/l 28.6
MRs Between and Violation Category:Program Category:
Param Name County:Subbasin:%Violation Action:
Major Minor:%
Permit:
Facility Name:
Region:--NC0021601
%%
%
%
Limit Violation %
%
8 2016 2 2020
MONITORING REPORT(MR) VIOLATIONS for:03/10/20Report Date:4Page:of 25
PERMIT:NC0021601 FACILITY:Town of Tryon - Tryon WWTP COUNTY:Polk REGION:Asheville
%
Over
UNIT OF
MEASURE VIOLATION ACTIONVIOLATION TYPECALCULATED
VALUELIMITFREQUENCYVIOLATION
DATEPARAMETERLOCATIONMONITORING
REPORT
Limit Violation
OUTFALL
01 - 2017 001 Effluent Chlorine, Total Residual 01/09/17 3 X week Daily Maximum
Exceeded
No Action, BPJ4428ug/l 57.1
01 - 2017 001 Effluent Chlorine, Total Residual 01/10/17 3 X week Daily Maximum
Exceeded
No Action, BPJ4828ug/l 71.4
01 - 2017 001 Effluent Chlorine, Total Residual 01/11/17 3 X week Daily Maximum
Exceeded
No Action, BPJ4428ug/l 57.1
01 - 2017 001 Effluent Chlorine, Total Residual 01/16/17 3 X week Daily Maximum
Exceeded
No Action, BPJ4828ug/l 71.4
01 - 2017 001 Effluent Chlorine, Total Residual 01/17/17 3 X week Daily Maximum
Exceeded
No Action, BPJ4628ug/l 64.3
01 - 2017 001 Effluent Chlorine, Total Residual 01/18/17 3 X week Daily Maximum
Exceeded
No Action, BPJ4828ug/l 71.4
01 - 2017 001 Effluent Chlorine, Total Residual 01/23/17 3 X week Daily Maximum
Exceeded
No Action, BPJ4328ug/l 53.6
01 - 2017 001 Effluent Chlorine, Total Residual 01/24/17 3 X week Daily Maximum
Exceeded
No Action, BPJ4128ug/l 46.4
01 - 2017 001 Effluent Chlorine, Total Residual 01/25/17 3 X week Daily Maximum
Exceeded
No Action, BPJ4528ug/l 60.7
01 - 2017 001 Effluent Chlorine, Total Residual 01/30/17 3 X week Daily Maximum
Exceeded
No Action, BPJ3828ug/l 35.7
01 - 2017 001 Effluent Chlorine, Total Residual 01/31/17 3 X week Daily Maximum
Exceeded
No Action, BPJ4228ug/l 50
02 - 2017 001 Effluent Chlorine, Total Residual 02/01/17 3 X week Daily Maximum
Exceeded
No Action, BPJ4528ug/l 60.7
02 - 2017 001 Effluent Chlorine, Total Residual 02/06/17 3 X week Daily Maximum
Exceeded
No Action, BPJ4328ug/l 53.6
02 - 2017 001 Effluent Chlorine, Total Residual 02/07/17 3 X week Daily Maximum
Exceeded
No Action, BPJ3828ug/l 35.7
02 - 2017 001 Effluent Chlorine, Total Residual 02/08/17 3 X week Daily Maximum
Exceeded
No Action, BPJ4028ug/l 42.9
02 - 2017 001 Effluent Chlorine, Total Residual 02/13/17 3 X week Daily Maximum
Exceeded
No Action, BPJ4228ug/l 50
MRs Between and Violation Category:Program Category:
Param Name County:Subbasin:%Violation Action:
Major Minor:%
Permit:
Facility Name:
Region:--NC0021601
%%
%
%
Limit Violation %
%
8 2016 2 2020
MONITORING REPORT(MR) VIOLATIONS for:03/10/20Report Date:5Page:of 25
PERMIT:NC0021601 FACILITY:Town of Tryon - Tryon WWTP COUNTY:Polk REGION:Asheville
%
Over
UNIT OF
MEASURE VIOLATION ACTIONVIOLATION TYPECALCULATED
VALUELIMITFREQUENCYVIOLATION
DATEPARAMETERLOCATIONMONITORING
REPORT
Limit Violation
OUTFALL
02 - 2017 001 Effluent Chlorine, Total Residual 02/14/17 3 X week Daily Maximum
Exceeded
No Action, BPJ3928ug/l 39.3
02 - 2017 001 Effluent Chlorine, Total Residual 02/20/17 3 X week Daily Maximum
Exceeded
No Action, BPJ4228ug/l 50
02 - 2017 001 Effluent Chlorine, Total Residual 02/21/17 3 X week Daily Maximum
Exceeded
No Action, BPJ4328ug/l 53.6
02 - 2017 001 Effluent Chlorine, Total Residual 02/22/17 3 X week Daily Maximum
Exceeded
No Action, BPJ4628ug/l 64.3
02 - 2017 001 Effluent Chlorine, Total Residual 02/27/17 3 X week Daily Maximum
Exceeded
No Action, BPJ4228ug/l 50
02 - 2017 001 Effluent Chlorine, Total Residual 02/28/17 3 X week Daily Maximum
Exceeded
No Action, BPJ4028ug/l 42.9
03 - 2017 001 Effluent Chlorine, Total Residual 03/01/17 3 X week Daily Maximum
Exceeded
No Action, BPJ3628ug/l 28.6
03 - 2017 001 Effluent Chlorine, Total Residual 03/13/17 3 X week Daily Maximum
Exceeded
No Action, BPJ3228ug/l 14.3
03 - 2017 001 Effluent Chlorine, Total Residual 03/14/17 3 X week Daily Maximum
Exceeded
No Action, BPJ3428ug/l 21.4
04 - 2017 001 Effluent Chlorine, Total Residual 04/03/17 3 X week Daily Maximum
Exceeded
No Action, BPJ3828ug/l 35.7
04 - 2017 001 Effluent Chlorine, Total Residual 04/04/17 3 X week Daily Maximum
Exceeded
No Action, BPJ3228ug/l 14.3
04 - 2017 001 Effluent Chlorine, Total Residual 04/12/17 3 X week Daily Maximum
Exceeded
No Action, BPJ3228ug/l 14.3
04 - 2017 001 Effluent Chlorine, Total Residual 04/18/17 3 X week Daily Maximum
Exceeded
No Action, BPJ3228ug/l 14.3
04 - 2017 001 Effluent Chlorine, Total Residual 04/24/17 3 X week Daily Maximum
Exceeded
No Action, BPJ4228ug/l 50
04 - 2017 001 Effluent Chlorine, Total Residual 04/25/17 3 X week Daily Maximum
Exceeded
No Action, BPJ4428ug/l 57.1
04 - 2017 001 Effluent Chlorine, Total Residual 04/26/17 3 X week Daily Maximum
Exceeded
No Action, BPJ4428ug/l 57.1
MRs Between and Violation Category:Program Category:
Param Name County:Subbasin:%Violation Action:
Major Minor:%
Permit:
Facility Name:
Region:--NC0021601
%%
%
%
Limit Violation %
%
8 2016 2 2020
MONITORING REPORT(MR) VIOLATIONS for:03/10/20Report Date:6Page:of 25
PERMIT:NC0021601 FACILITY:Town of Tryon - Tryon WWTP COUNTY:Polk REGION:Asheville
%
Over
UNIT OF
MEASURE VIOLATION ACTIONVIOLATION TYPECALCULATED
VALUELIMITFREQUENCYVIOLATION
DATEPARAMETERLOCATIONMONITORING
REPORT
Limit Violation
OUTFALL
05 - 2017 001 Effluent Chlorine, Total Residual 05/02/17 3 X week Daily Maximum
Exceeded
No Action, BPJ3028ug/l 7.1
05 - 2017 001 Effluent Chlorine, Total Residual 05/08/17 3 X week Daily Maximum
Exceeded
No Action, BPJ4528ug/l 60.7
05 - 2017 001 Effluent Chlorine, Total Residual 05/09/17 3 X week Daily Maximum
Exceeded
No Action, BPJ3528ug/l 25
05 - 2017 001 Effluent Chlorine, Total Residual 05/15/17 3 X week Daily Maximum
Exceeded
No Action, BPJ4528ug/l 60.7
05 - 2017 001 Effluent Chlorine, Total Residual 05/16/17 3 X week Daily Maximum
Exceeded
No Action, BPJ4728ug/l 67.9
05 - 2017 001 Effluent Chlorine, Total Residual 05/17/17 3 X week Daily Maximum
Exceeded
No Action, BPJ3228ug/l 14.3
05 - 2017 001 Effluent Chlorine, Total Residual 05/22/17 3 X week Daily Maximum
Exceeded
No Action, BPJ3828ug/l 35.7
05 - 2017 001 Effluent Chlorine, Total Residual 05/23/17 3 X week Daily Maximum
Exceeded
No Action, BPJ4028ug/l 42.9
05 - 2017 001 Effluent Chlorine, Total Residual 05/24/17 3 X week Daily Maximum
Exceeded
No Action, BPJ4228ug/l 50
05 - 2017 001 Effluent Chlorine, Total Residual 05/29/17 3 X week Daily Maximum
Exceeded
No Action, BPJ4428ug/l 57.1
05 - 2017 001 Effluent Chlorine, Total Residual 05/30/17 3 X week Daily Maximum
Exceeded
No Action, BPJ3828ug/l 35.7
05 - 2017 001 Effluent Chlorine, Total Residual 05/31/17 3 X week Daily Maximum
Exceeded
No Action, BPJ3428ug/l 21.4
06 - 2017 001 Effluent Chlorine, Total Residual 06/05/17 3 X week Daily Maximum
Exceeded
No Action, BPJ3928ug/l 39.3
06 - 2017 001 Effluent Chlorine, Total Residual 06/07/17 3 X week Daily Maximum
Exceeded
No Action, BPJ3728ug/l 32.1
06 - 2017 001 Effluent Chlorine, Total Residual 06/12/17 3 X week Daily Maximum
Exceeded
No Action, BPJ4128ug/l 46.4
06 - 2017 001 Effluent Chlorine, Total Residual 06/27/17 3 X week Daily Maximum
Exceeded
No Action, BPJ3628ug/l 28.6
MRs Between and Violation Category:Program Category:
Param Name County:Subbasin:%Violation Action:
Major Minor:%
Permit:
Facility Name:
Region:--NC0021601
%%
%
%
Limit Violation %
%
8 2016 2 2020
MONITORING REPORT(MR) VIOLATIONS for:03/10/20Report Date:7Page:of 25
PERMIT:NC0021601 FACILITY:Town of Tryon - Tryon WWTP COUNTY:Polk REGION:Asheville
%
Over
UNIT OF
MEASURE VIOLATION ACTIONVIOLATION TYPECALCULATED
VALUELIMITFREQUENCYVIOLATION
DATEPARAMETERLOCATIONMONITORING
REPORT
Limit Violation
OUTFALL
06 - 2017 001 Effluent Chlorine, Total Residual 06/28/17 3 X week Daily Maximum
Exceeded
No Action, BPJ3828ug/l 35.7
07 - 2017 001 Effluent Chlorine, Total Residual 07/03/17 3 X week Daily Maximum
Exceeded
No Action, BPJ4028ug/l 42.9
07 - 2017 001 Effluent Chlorine, Total Residual 07/04/17 3 X week Daily Maximum
Exceeded
No Action, BPJ3928ug/l 39.3
07 - 2017 001 Effluent Chlorine, Total Residual 07/05/17 3 X week Daily Maximum
Exceeded
No Action, BPJ4728ug/l 67.9
07 - 2017 001 Effluent Chlorine, Total Residual 07/06/17 3 X week Daily Maximum
Exceeded
No Action, BPJ3628ug/l 28.6
07 - 2017 001 Effluent Chlorine, Total Residual 07/10/17 3 X week Daily Maximum
Exceeded
No Action, BPJ4228ug/l 50
07 - 2017 001 Effluent Chlorine, Total Residual 07/11/17 3 X week Daily Maximum
Exceeded
No Action, BPJ4628ug/l 64.3
07 - 2017 001 Effluent Chlorine, Total Residual 07/12/17 3 X week Daily Maximum
Exceeded
No Action, BPJ4728ug/l 67.9
07 - 2017 001 Effluent Chlorine, Total Residual 07/18/17 3 X week Daily Maximum
Exceeded
No Action, BPJ3428ug/l 21.4
07 - 2017 001 Effluent Chlorine, Total Residual 07/19/17 3 X week Daily Maximum
Exceeded
No Action, BPJ4428ug/l 57.1
07 - 2017 001 Effluent Chlorine, Total Residual 07/25/17 3 X week Daily Maximum
Exceeded
No Action, BPJ4528ug/l 60.7
07 - 2017 001 Effluent Chlorine, Total Residual 07/26/17 3 X week Daily Maximum
Exceeded
No Action, BPJ4828ug/l 71.4
07 - 2017 001 Effluent Chlorine, Total Residual 07/31/17 3 X week Daily Maximum
Exceeded
No Action, BPJ3328ug/l 17.9
08 - 2017 001 Effluent Chlorine, Total Residual 08/01/17 3 X week Daily Maximum
Exceeded
No Action, BPJ3028ug/l 7.1
08 - 2017 001 Effluent Chlorine, Total Residual 08/02/17 3 X week Daily Maximum
Exceeded
No Action, BPJ3828ug/l 35.7
08 - 2017 001 Effluent Chlorine, Total Residual 08/07/17 3 X week Daily Maximum
Exceeded
No Action, BPJ3028ug/l 7.1
MRs Between and Violation Category:Program Category:
Param Name County:Subbasin:%Violation Action:
Major Minor:%
Permit:
Facility Name:
Region:--NC0021601
%%
%
%
Limit Violation %
%
8 2016 2 2020
MONITORING REPORT(MR) VIOLATIONS for:03/10/20Report Date:8Page:of 25
PERMIT:NC0021601 FACILITY:Town of Tryon - Tryon WWTP COUNTY:Polk REGION:Asheville
%
Over
UNIT OF
MEASURE VIOLATION ACTIONVIOLATION TYPECALCULATED
VALUELIMITFREQUENCYVIOLATION
DATEPARAMETERLOCATIONMONITORING
REPORT
Limit Violation
OUTFALL
08 - 2017 001 Effluent Chlorine, Total Residual 08/08/17 3 X week Daily Maximum
Exceeded
No Action, BPJ4228ug/l 50
08 - 2017 001 Effluent Chlorine, Total Residual 08/09/17 3 X week Daily Maximum
Exceeded
No Action, BPJ4028ug/l 42.9
08 - 2017 001 Effluent Chlorine, Total Residual 08/16/17 3 X week Daily Maximum
Exceeded
No Action, BPJ3128ug/l 10.7
08 - 2017 001 Effluent Chlorine, Total Residual 08/21/17 3 X week Daily Maximum
Exceeded
No Action, BPJ4228ug/l 50
08 - 2017 001 Effluent Chlorine, Total Residual 08/22/17 3 X week Daily Maximum
Exceeded
No Action, BPJ3628ug/l 28.6
08 - 2017 001 Effluent Chlorine, Total Residual 08/23/17 3 X week Daily Maximum
Exceeded
No Action, BPJ4628ug/l 64.3
08 - 2017 001 Effluent Chlorine, Total Residual 08/28/17 3 X week Daily Maximum
Exceeded
No Action, BPJ4228ug/l 50
08 - 2017 001 Effluent Chlorine, Total Residual 08/29/17 3 X week Daily Maximum
Exceeded
No Action, BPJ4428ug/l 57.1
09 - 2017 001 Effluent Chlorine, Total Residual 09/04/17 3 X week Daily Maximum
Exceeded
No Action, BPJ3528ug/l 25
09 - 2017 001 Effluent Chlorine, Total Residual 09/05/17 3 X week Daily Maximum
Exceeded
No Action, BPJ3728ug/l 32.1
09 - 2017 001 Effluent Chlorine, Total Residual 09/11/17 3 X week Daily Maximum
Exceeded
No Action, BPJ3628ug/l 28.6
09 - 2017 001 Effluent Chlorine, Total Residual 09/12/17 3 X week Daily Maximum
Exceeded
No Action, BPJ3728ug/l 32.1
09 - 2017 001 Effluent Chlorine, Total Residual 09/13/17 3 X week Daily Maximum
Exceeded
No Action, BPJ3928ug/l 39.3
09 - 2017 001 Effluent Chlorine, Total Residual 09/18/17 3 X week Daily Maximum
Exceeded
No Action, BPJ4228ug/l 50
09 - 2017 001 Effluent Chlorine, Total Residual 09/19/17 3 X week Daily Maximum
Exceeded
No Action, BPJ4828ug/l 71.4
09 - 2017 001 Effluent Chlorine, Total Residual 09/20/17 3 X week Daily Maximum
Exceeded
No Action, BPJ4428ug/l 57.1
MRs Between and Violation Category:Program Category:
Param Name County:Subbasin:%Violation Action:
Major Minor:%
Permit:
Facility Name:
Region:--NC0021601
%%
%
%
Limit Violation %
%
8 2016 2 2020
MONITORING REPORT(MR) VIOLATIONS for:03/10/20Report Date:9Page:of 25
PERMIT:NC0021601 FACILITY:Town of Tryon - Tryon WWTP COUNTY:Polk REGION:Asheville
%
Over
UNIT OF
MEASURE VIOLATION ACTIONVIOLATION TYPECALCULATED
VALUELIMITFREQUENCYVIOLATION
DATEPARAMETERLOCATIONMONITORING
REPORT
Limit Violation
OUTFALL
09 - 2017 001 Effluent Chlorine, Total Residual 09/25/17 3 X week Daily Maximum
Exceeded
No Action, BPJ4228ug/l 50
09 - 2017 001 Effluent Chlorine, Total Residual 09/26/17 3 X week Daily Maximum
Exceeded
No Action, BPJ4228ug/l 50
09 - 2017 001 Effluent Chlorine, Total Residual 09/27/17 3 X week Daily Maximum
Exceeded
No Action, BPJ3628ug/l 28.6
10 - 2017 001 Effluent Chlorine, Total Residual 10/09/17 3 X week Daily Maximum
Exceeded
No Action, BPJ4428ug/l 57.1
10 - 2017 001 Effluent Chlorine, Total Residual 10/10/17 3 X week Daily Maximum
Exceeded
No Action, BPJ3828ug/l 35.7
10 - 2017 001 Effluent Chlorine, Total Residual 10/11/17 3 X week Daily Maximum
Exceeded
No Action, BPJ4428ug/l 57.1
10 - 2017 001 Effluent Chlorine, Total Residual 10/18/17 3 X week Daily Maximum
Exceeded
No Action, BPJ3228ug/l 14.3
10 - 2017 001 Effluent Chlorine, Total Residual 10/23/17 3 X week Daily Maximum
Exceeded
No Action, BPJ4628ug/l 64.3
10 - 2017 001 Effluent Chlorine, Total Residual 10/24/17 3 X week Daily Maximum
Exceeded
No Action, BPJ4228ug/l 50
10 - 2017 001 Effluent Chlorine, Total Residual 10/25/17 3 X week Daily Maximum
Exceeded
No Action, BPJ4428ug/l 57.1
10 - 2017 001 Effluent Chlorine, Total Residual 10/30/17 3 X week Daily Maximum
Exceeded
No Action, BPJ3028ug/l 7.1
10 - 2017 001 Effluent Chlorine, Total Residual 10/31/17 3 X week Daily Maximum
Exceeded
No Action, BPJ3228ug/l 14.3
11 - 2017 001 Effluent Chlorine, Total Residual 11/06/17 3 X week Daily Maximum
Exceeded
No Action, BPJ4128ug/l 46.4
11 - 2017 001 Effluent Chlorine, Total Residual 11/07/17 3 X week Daily Maximum
Exceeded
No Action, BPJ3828ug/l 35.7
11 - 2017 001 Effluent Chlorine, Total Residual 11/08/17 3 X week Daily Maximum
Exceeded
No Action, BPJ3728ug/l 32.1
11 - 2017 001 Effluent Chlorine, Total Residual 11/13/17 3 X week Daily Maximum
Exceeded
No Action, BPJ4228ug/l 50
MRs Between and Violation Category:Program Category:
Param Name County:Subbasin:%Violation Action:
Major Minor:%
Permit:
Facility Name:
Region:--NC0021601
%%
%
%
Limit Violation %
%
8 2016 2 2020
MONITORING REPORT(MR) VIOLATIONS for:03/10/20Report Date:10Page:of 25
PERMIT:NC0021601 FACILITY:Town of Tryon - Tryon WWTP COUNTY:Polk REGION:Asheville
%
Over
UNIT OF
MEASURE VIOLATION ACTIONVIOLATION TYPECALCULATED
VALUELIMITFREQUENCYVIOLATION
DATEPARAMETERLOCATIONMONITORING
REPORT
Limit Violation
OUTFALL
11 - 2017 001 Effluent Chlorine, Total Residual 11/14/17 3 X week Daily Maximum
Exceeded
No Action, BPJ3628ug/l 28.6
11 - 2017 001 Effluent Chlorine, Total Residual 11/15/17 3 X week Daily Maximum
Exceeded
No Action, BPJ4028ug/l 42.9
11 - 2017 001 Effluent Chlorine, Total Residual 11/20/17 3 X week Daily Maximum
Exceeded
No Action, BPJ4528ug/l 60.7
11 - 2017 001 Effluent Chlorine, Total Residual 11/21/17 3 X week Daily Maximum
Exceeded
No Action, BPJ4028ug/l 42.9
11 - 2017 001 Effluent Chlorine, Total Residual 11/22/17 3 X week Daily Maximum
Exceeded
No Action, BPJ3728ug/l 32.1
12 - 2017 001 Effluent Chlorine, Total Residual 12/04/17 3 X week Daily Maximum
Exceeded
No Action, BPJ4428ug/l 57.1
12 - 2017 001 Effluent Chlorine, Total Residual 12/05/17 3 X week Daily Maximum
Exceeded
No Action, BPJ4628ug/l 64.3
12 - 2017 001 Effluent Chlorine, Total Residual 12/06/17 3 X week Daily Maximum
Exceeded
No Action, BPJ3228ug/l 14.3
12 - 2017 001 Effluent Chlorine, Total Residual 12/11/17 3 X week Daily Maximum
Exceeded
No Action, BPJ3028ug/l 7.1
12 - 2017 001 Effluent Chlorine, Total Residual 12/13/17 3 X week Daily Maximum
Exceeded
No Action, BPJ2928ug/l 3.6
01 - 2018 001 Effluent Chlorine, Total Residual 01/02/18 3 X week Daily Maximum
Exceeded
No Action, BPJ4428ug/l 57.1
01 - 2018 001 Effluent Chlorine, Total Residual 01/03/18 3 X week Daily Maximum
Exceeded
No Action, BPJ4028ug/l 42.9
01 - 2018 001 Effluent Chlorine, Total Residual 01/04/18 3 X week Daily Maximum
Exceeded
No Action, BPJ3828ug/l 35.7
01 - 2018 001 Effluent Chlorine, Total Residual 01/09/18 3 X week Daily Maximum
Exceeded
No Action, BPJ3028ug/l 7.1
01 - 2018 001 Effluent Chlorine, Total Residual 01/10/18 3 X week Daily Maximum
Exceeded
No Action, BPJ3028ug/l 7.1
01 - 2018 001 Effluent Chlorine, Total Residual 01/17/18 3 X week Daily Maximum
Exceeded
No Action, BPJ3028ug/l 7.1
MRs Between and Violation Category:Program Category:
Param Name County:Subbasin:%Violation Action:
Major Minor:%
Permit:
Facility Name:
Region:--NC0021601
%%
%
%
Limit Violation %
%
8 2016 2 2020
MONITORING REPORT(MR) VIOLATIONS for:03/10/20Report Date:11Page:of 25
PERMIT:NC0021601 FACILITY:Town of Tryon - Tryon WWTP COUNTY:Polk REGION:Asheville
%
Over
UNIT OF
MEASURE VIOLATION ACTIONVIOLATION TYPECALCULATED
VALUELIMITFREQUENCYVIOLATION
DATEPARAMETERLOCATIONMONITORING
REPORT
Limit Violation
OUTFALL
01 - 2018 001 Effluent Chlorine, Total Residual 01/22/18 3 X week Daily Maximum
Exceeded
No Action, BPJ3328ug/l 17.9
01 - 2018 001 Effluent Chlorine, Total Residual 01/23/18 3 X week Daily Maximum
Exceeded
No Action, BPJ3828ug/l 35.7
01 - 2018 001 Effluent Chlorine, Total Residual 01/24/18 3 X week Daily Maximum
Exceeded
No Action, BPJ3028ug/l 7.1
01 - 2018 001 Effluent Chlorine, Total Residual 01/29/18 3 X week Daily Maximum
Exceeded
No Action, BPJ3828ug/l 35.7
01 - 2018 001 Effluent Chlorine, Total Residual 01/30/18 3 X week Daily Maximum
Exceeded
No Action, BPJ3328ug/l 17.9
01 - 2018 001 Effluent Chlorine, Total Residual 01/31/18 3 X week Daily Maximum
Exceeded
No Action, BPJ3028ug/l 7.1
02 - 2018 001 Effluent Chlorine, Total Residual 02/05/18 3 X week Daily Maximum
Exceeded
No Action, BPJ4828ug/l 71.4
02 - 2018 001 Effluent Chlorine, Total Residual 02/06/18 3 X week Daily Maximum
Exceeded
No Action, BPJ4228ug/l 50
02 - 2018 001 Effluent Chlorine, Total Residual 02/07/18 3 X week Daily Maximum
Exceeded
No Action, BPJ4728ug/l 67.9
02 - 2018 001 Effluent Chlorine, Total Residual 02/12/18 3 X week Daily Maximum
Exceeded
No Action, BPJ4328ug/l 53.6
02 - 2018 001 Effluent Chlorine, Total Residual 02/13/18 3 X week Daily Maximum
Exceeded
No Action, BPJ4228ug/l 50
02 - 2018 001 Effluent Chlorine, Total Residual 02/14/18 3 X week Daily Maximum
Exceeded
No Action, BPJ4028ug/l 42.9
02 - 2018 001 Effluent Chlorine, Total Residual 02/20/18 3 X week Daily Maximum
Exceeded
No Action, BPJ3028ug/l 7.1
03 - 2018 001 Effluent Chlorine, Total Residual 03/05/18 3 X week Daily Maximum
Exceeded
No Action, BPJ4528ug/l 60.7
03 - 2018 001 Effluent Chlorine, Total Residual 03/06/18 3 X week Daily Maximum
Exceeded
No Action, BPJ4728ug/l 67.9
03 - 2018 001 Effluent Chlorine, Total Residual 03/12/18 3 X week Daily Maximum
Exceeded
No Action, BPJ3428ug/l 21.4
MRs Between and Violation Category:Program Category:
Param Name County:Subbasin:%Violation Action:
Major Minor:%
Permit:
Facility Name:
Region:--NC0021601
%%
%
%
Limit Violation %
%
8 2016 2 2020
MONITORING REPORT(MR) VIOLATIONS for:03/10/20Report Date:12Page:of 25
PERMIT:NC0021601 FACILITY:Town of Tryon - Tryon WWTP COUNTY:Polk REGION:Asheville
%
Over
UNIT OF
MEASURE VIOLATION ACTIONVIOLATION TYPECALCULATED
VALUELIMITFREQUENCYVIOLATION
DATEPARAMETERLOCATIONMONITORING
REPORT
Limit Violation
OUTFALL
03 - 2018 001 Effluent Chlorine, Total Residual 03/13/18 3 X week Daily Maximum
Exceeded
No Action, BPJ3128ug/l 10.7
03 - 2018 001 Effluent Chlorine, Total Residual 03/19/18 3 X week Daily Maximum
Exceeded
No Action, BPJ3728ug/l 32.1
03 - 2018 001 Effluent Chlorine, Total Residual 03/21/18 3 X week Daily Maximum
Exceeded
No Action, BPJ2928ug/l 3.6
03 - 2018 001 Effluent Chlorine, Total Residual 03/26/18 3 X week Daily Maximum
Exceeded
No Action, BPJ4728ug/l 67.9
04 - 2018 001 Effluent Chlorine, Total Residual 04/05/18 3 X week Daily Maximum
Exceeded
No Action, BPJ3228ug/l 14.3
04 - 2018 001 Effluent Chlorine, Total Residual 04/17/18 3 X week Daily Maximum
Exceeded
No Action, BPJ3628ug/l 28.6
04 - 2018 001 Effluent Chlorine, Total Residual 04/18/18 3 X week Daily Maximum
Exceeded
No Action, BPJ4128ug/l 46.4
04 - 2018 001 Effluent Chlorine, Total Residual 04/19/18 3 X week Daily Maximum
Exceeded
No Action, BPJ3228ug/l 14.3
04 - 2018 001 Effluent Chlorine, Total Residual 04/24/18 3 X week Daily Maximum
Exceeded
No Action, BPJ4828ug/l 71.4
04 - 2018 001 Effluent Chlorine, Total Residual 04/25/18 3 X week Daily Maximum
Exceeded
No Action, BPJ3828ug/l 35.7
04 - 2018 001 Effluent Chlorine, Total Residual 04/26/18 3 X week Daily Maximum
Exceeded
No Action, BPJ4228ug/l 50
05 - 2018 001 Effluent Chlorine, Total Residual 05/01/18 3 X week Daily Maximum
Exceeded
No Action, BPJ4928ug/l 75
05 - 2018 001 Effluent Chlorine, Total Residual 05/02/18 3 X week Daily Maximum
Exceeded
No Action, BPJ3728ug/l 32.1
05 - 2018 001 Effluent Chlorine, Total Residual 05/03/18 3 X week Daily Maximum
Exceeded
No Action, BPJ4528ug/l 60.7
05 - 2018 001 Effluent Chlorine, Total Residual 05/15/18 3 X week Daily Maximum
Exceeded
No Action, BPJ4228ug/l 50
05 - 2018 001 Effluent Chlorine, Total Residual 05/17/18 3 X week Daily Maximum
Exceeded
No Action, BPJ2928ug/l 3.6
MRs Between and Violation Category:Program Category:
Param Name County:Subbasin:%Violation Action:
Major Minor:%
Permit:
Facility Name:
Region:--NC0021601
%%
%
%
Limit Violation %
%
8 2016 2 2020
MONITORING REPORT(MR) VIOLATIONS for:03/10/20Report Date:13Page:of 25
PERMIT:NC0021601 FACILITY:Town of Tryon - Tryon WWTP COUNTY:Polk REGION:Asheville
%
Over
UNIT OF
MEASURE VIOLATION ACTIONVIOLATION TYPECALCULATED
VALUELIMITFREQUENCYVIOLATION
DATEPARAMETERLOCATIONMONITORING
REPORT
Limit Violation
OUTFALL
05 - 2018 001 Effluent Chlorine, Total Residual 05/23/18 3 X week Daily Maximum
Exceeded
No Action, BPJ3428ug/l 21.4
05 - 2018 001 Effluent Chlorine, Total Residual 05/30/18 3 X week Daily Maximum
Exceeded
No Action, BPJ4428ug/l 57.1
06 - 2018 001 Effluent Chlorine, Total Residual 06/12/18 3 X week Daily Maximum
Exceeded
No Action, BPJ3828ug/l 35.7
06 - 2018 001 Effluent Chlorine, Total Residual 06/13/18 3 X week Daily Maximum
Exceeded
No Action, BPJ3528ug/l 25
06 - 2018 001 Effluent Chlorine, Total Residual 06/14/18 3 X week Daily Maximum
Exceeded
No Action, BPJ4828ug/l 71.4
06 - 2018 001 Effluent Chlorine, Total Residual 06/19/18 3 X week Daily Maximum
Exceeded
No Action, BPJ4728ug/l 67.9
06 - 2018 001 Effluent Chlorine, Total Residual 06/20/18 3 X week Daily Maximum
Exceeded
No Action, BPJ4628ug/l 64.3
06 - 2018 001 Effluent Chlorine, Total Residual 06/26/18 3 X week Daily Maximum
Exceeded
No Action, BPJ3928ug/l 39.3
06 - 2018 001 Effluent Chlorine, Total Residual 06/27/18 3 X week Daily Maximum
Exceeded
No Action, BPJ4728ug/l 67.9
06 - 2018 001 Effluent Chlorine, Total Residual 06/28/18 3 X week Daily Maximum
Exceeded
No Action, BPJ3228ug/l 14.3
07 - 2018 001 Effluent Chlorine, Total Residual 07/02/18 3 X week Daily Maximum
Exceeded
No Action, BPJ4428ug/l 57.1
07 - 2018 001 Effluent Chlorine, Total Residual 07/03/18 3 X week Daily Maximum
Exceeded
No Action, BPJ4728ug/l 67.9
07 - 2018 001 Effluent Chlorine, Total Residual 07/05/18 3 X week Daily Maximum
Exceeded
No Action, BPJ3928ug/l 39.3
07 - 2018 001 Effluent Chlorine, Total Residual 07/10/18 3 X week Daily Maximum
Exceeded
No Action, BPJ4928ug/l 75
07 - 2018 001 Effluent Chlorine, Total Residual 07/11/18 3 X week Daily Maximum
Exceeded
No Action, BPJ3128ug/l 10.7
07 - 2018 001 Effluent Chlorine, Total Residual 07/12/18 3 X week Daily Maximum
Exceeded
No Action, BPJ4428ug/l 57.1
MRs Between and Violation Category:Program Category:
Param Name County:Subbasin:%Violation Action:
Major Minor:%
Permit:
Facility Name:
Region:--NC0021601
%%
%
%
Limit Violation %
%
8 2016 2 2020
MONITORING REPORT(MR) VIOLATIONS for:03/10/20Report Date:14Page:of 25
PERMIT:NC0021601 FACILITY:Town of Tryon - Tryon WWTP COUNTY:Polk REGION:Asheville
%
Over
UNIT OF
MEASURE VIOLATION ACTIONVIOLATION TYPECALCULATED
VALUELIMITFREQUENCYVIOLATION
DATEPARAMETERLOCATIONMONITORING
REPORT
Limit Violation
OUTFALL
07 - 2018 001 Effluent Chlorine, Total Residual 07/17/18 3 X week Daily Maximum
Exceeded
No Action, BPJ3128ug/l 10.7
07 - 2018 001 Effluent Chlorine, Total Residual 07/18/18 3 X week Daily Maximum
Exceeded
No Action, BPJ3428ug/l 21.4
07 - 2018 001 Effluent Chlorine, Total Residual 07/19/18 3 X week Daily Maximum
Exceeded
No Action, BPJ4428ug/l 57.1
07 - 2018 001 Effluent Chlorine, Total Residual 07/24/18 3 X week Daily Maximum
Exceeded
No Action, BPJ4928ug/l 75
07 - 2018 001 Effluent Chlorine, Total Residual 07/25/18 3 X week Daily Maximum
Exceeded
No Action, BPJ4028ug/l 42.9
07 - 2018 001 Effluent Chlorine, Total Residual 07/26/18 3 X week Daily Maximum
Exceeded
No Action, BPJ4628ug/l 64.3
07 - 2018 001 Effluent Chlorine, Total Residual 07/31/18 3 X week Daily Maximum
Exceeded
No Action, BPJ4928ug/l 75
08 - 2018 001 Effluent Chlorine, Total Residual 08/01/18 3 X week Daily Maximum
Exceeded
No Action, BPJ4128ug/l 46.4
08 - 2018 001 Effluent Chlorine, Total Residual 08/02/18 3 X week Daily Maximum
Exceeded
No Action, BPJ4628ug/l 64.3
08 - 2018 001 Effluent Chlorine, Total Residual 08/07/18 3 X week Daily Maximum
Exceeded
No Action, BPJ4028ug/l 42.9
08 - 2018 001 Effluent Chlorine, Total Residual 08/08/18 3 X week Daily Maximum
Exceeded
No Action, BPJ3528ug/l 25
08 - 2018 001 Effluent Chlorine, Total Residual 08/09/18 3 X week Daily Maximum
Exceeded
No Action, BPJ3728ug/l 32.1
08 - 2018 001 Effluent Chlorine, Total Residual 08/14/18 3 X week Daily Maximum
Exceeded
No Action, BPJ4228ug/l 50
08 - 2018 001 Effluent Chlorine, Total Residual 08/15/18 3 X week Daily Maximum
Exceeded
No Action, BPJ4628ug/l 64.3
08 - 2018 001 Effluent Chlorine, Total Residual 08/16/18 3 X week Daily Maximum
Exceeded
No Action, BPJ3828ug/l 35.7
08 - 2018 001 Effluent Chlorine, Total Residual 08/21/18 3 X week Daily Maximum
Exceeded
No Action, BPJ3628ug/l 28.6
MRs Between and Violation Category:Program Category:
Param Name County:Subbasin:%Violation Action:
Major Minor:%
Permit:
Facility Name:
Region:--NC0021601
%%
%
%
Limit Violation %
%
8 2016 2 2020
MONITORING REPORT(MR) VIOLATIONS for:03/10/20Report Date:15Page:of 25
PERMIT:NC0021601 FACILITY:Town of Tryon - Tryon WWTP COUNTY:Polk REGION:Asheville
%
Over
UNIT OF
MEASURE VIOLATION ACTIONVIOLATION TYPECALCULATED
VALUELIMITFREQUENCYVIOLATION
DATEPARAMETERLOCATIONMONITORING
REPORT
Limit Violation
OUTFALL
08 - 2018 001 Effluent Chlorine, Total Residual 08/22/18 3 X week Daily Maximum
Exceeded
No Action, BPJ3328ug/l 17.9
08 - 2018 001 Effluent Chlorine, Total Residual 08/23/18 3 X week Daily Maximum
Exceeded
No Action, BPJ3828ug/l 35.7
08 - 2018 001 Effluent Chlorine, Total Residual 08/28/18 3 X week Daily Maximum
Exceeded
No Action, BPJ3828ug/l 35.7
08 - 2018 001 Effluent Chlorine, Total Residual 08/29/18 3 X week Daily Maximum
Exceeded
No Action, BPJ3628ug/l 28.6
08 - 2018 001 Effluent Chlorine, Total Residual 08/30/18 3 X week Daily Maximum
Exceeded
No Action, BPJ3928ug/l 39.3
09 - 2018 001 Effluent Chlorine, Total Residual 09/04/18 3 X week Daily Maximum
Exceeded
No Action, BPJ4828ug/l 71.4
09 - 2018 001 Effluent Chlorine, Total Residual 09/05/18 3 X week Daily Maximum
Exceeded
No Action, BPJ3728ug/l 32.1
09 - 2018 001 Effluent Chlorine, Total Residual 09/06/18 3 X week Daily Maximum
Exceeded
No Action, BPJ3528ug/l 25
09 - 2018 001 Effluent Chlorine, Total Residual 09/11/18 3 X week Daily Maximum
Exceeded
No Action, BPJ4428ug/l 57.1
09 - 2018 001 Effluent Chlorine, Total Residual 09/12/18 3 X week Daily Maximum
Exceeded
No Action, BPJ3728ug/l 32.1
09 - 2018 001 Effluent Chlorine, Total Residual 09/13/18 3 X week Daily Maximum
Exceeded
No Action, BPJ4928ug/l 75
09 - 2018 001 Effluent Chlorine, Total Residual 09/18/18 3 X week Daily Maximum
Exceeded
No Action, BPJ4028ug/l 42.9
09 - 2018 001 Effluent Chlorine, Total Residual 09/19/18 3 X week Daily Maximum
Exceeded
No Action, BPJ3328ug/l 17.9
09 - 2018 001 Effluent Chlorine, Total Residual 09/20/18 3 X week Daily Maximum
Exceeded
No Action, BPJ4728ug/l 67.9
09 - 2018 001 Effluent Chlorine, Total Residual 09/24/18 3 X week Daily Maximum
Exceeded
No Action, BPJ3728ug/l 32.1
09 - 2018 001 Effluent Chlorine, Total Residual 09/25/18 3 X week Daily Maximum
Exceeded
No Action, BPJ3328ug/l 17.9
MRs Between and Violation Category:Program Category:
Param Name County:Subbasin:%Violation Action:
Major Minor:%
Permit:
Facility Name:
Region:--NC0021601
%%
%
%
Limit Violation %
%
8 2016 2 2020
MONITORING REPORT(MR) VIOLATIONS for:03/10/20Report Date:16Page:of 25
PERMIT:NC0021601 FACILITY:Town of Tryon - Tryon WWTP COUNTY:Polk REGION:Asheville
%
Over
UNIT OF
MEASURE VIOLATION ACTIONVIOLATION TYPECALCULATED
VALUELIMITFREQUENCYVIOLATION
DATEPARAMETERLOCATIONMONITORING
REPORT
Limit Violation
OUTFALL
09 - 2018 001 Effluent Chlorine, Total Residual 09/26/18 3 X week Daily Maximum
Exceeded
No Action, BPJ3228ug/l 14.3
10 - 2018 001 Effluent Chlorine, Total Residual 10/02/18 3 X week Daily Maximum
Exceeded
No Action, BPJ4028ug/l 42.9
10 - 2018 001 Effluent Chlorine, Total Residual 10/03/18 3 X week Daily Maximum
Exceeded
No Action, BPJ4528ug/l 60.7
10 - 2018 001 Effluent Chlorine, Total Residual 10/09/18 3 X week Daily Maximum
Exceeded
No Action, BPJ4428ug/l 57.1
10 - 2018 001 Effluent Chlorine, Total Residual 10/10/18 3 X week Daily Maximum
Exceeded
No Action, BPJ4828ug/l 71.4
10 - 2018 001 Effluent Chlorine, Total Residual 10/16/18 3 X week Daily Maximum
Exceeded
No Action, BPJ3128ug/l 10.7
10 - 2018 001 Effluent Chlorine, Total Residual 10/17/18 3 X week Daily Maximum
Exceeded
No Action, BPJ4828ug/l 71.4
10 - 2018 001 Effluent Chlorine, Total Residual 10/18/18 3 X week Daily Maximum
Exceeded
No Action, BPJ3128ug/l 10.7
10 - 2018 001 Effluent Chlorine, Total Residual 10/24/18 3 X week Daily Maximum
Exceeded
No Action, BPJ4628ug/l 64.3
10 - 2018 001 Effluent Chlorine, Total Residual 10/31/18 3 X week Daily Maximum
Exceeded
No Action, BPJ4728ug/l 67.9
11 - 2018 001 Effluent Chlorine, Total Residual 11/01/18 3 X week Daily Maximum
Exceeded
No Action, BPJ4528ug/l 60.7
11 - 2018 001 Effluent Chlorine, Total Residual 11/08/18 3 X week Daily Maximum
Exceeded
No Action, BPJ3228ug/l 14.3
11 - 2018 001 Effluent Chlorine, Total Residual 11/13/18 3 X week Daily Maximum
Exceeded
No Action, BPJ4428ug/l 57.1
11 - 2018 001 Effluent Chlorine, Total Residual 11/14/18 3 X week Daily Maximum
Exceeded
No Action, BPJ4528ug/l 60.7
11 - 2018 001 Effluent Chlorine, Total Residual 11/15/18 3 X week Daily Maximum
Exceeded
No Action, BPJ3028ug/l 7.1
11 - 2018 001 Effluent Chlorine, Total Residual 11/19/18 3 X week Daily Maximum
Exceeded
No Action, BPJ4828ug/l 71.4
MRs Between and Violation Category:Program Category:
Param Name County:Subbasin:%Violation Action:
Major Minor:%
Permit:
Facility Name:
Region:--NC0021601
%%
%
%
Limit Violation %
%
8 2016 2 2020
MONITORING REPORT(MR) VIOLATIONS for:03/10/20Report Date:17Page:of 25
PERMIT:NC0021601 FACILITY:Town of Tryon - Tryon WWTP COUNTY:Polk REGION:Asheville
%
Over
UNIT OF
MEASURE VIOLATION ACTIONVIOLATION TYPECALCULATED
VALUELIMITFREQUENCYVIOLATION
DATEPARAMETERLOCATIONMONITORING
REPORT
Limit Violation
OUTFALL
11 - 2018 001 Effluent Chlorine, Total Residual 11/20/18 3 X week Daily Maximum
Exceeded
No Action, BPJ3328ug/l 17.9
11 - 2018 001 Effluent Chlorine, Total Residual 11/27/18 3 X week Daily Maximum
Exceeded
No Action, BPJ4828ug/l 71.4
11 - 2018 001 Effluent Chlorine, Total Residual 11/28/18 3 X week Daily Maximum
Exceeded
No Action, BPJ4728ug/l 67.9
11 - 2018 001 Effluent Chlorine, Total Residual 11/29/18 3 X week Daily Maximum
Exceeded
No Action, BPJ4028ug/l 42.9
12 - 2018 001 Effluent Chlorine, Total Residual 12/04/18 3 X week Daily Maximum
Exceeded
No Action, BPJ3628ug/l 28.6
12 - 2018 001 Effluent Chlorine, Total Residual 12/05/18 3 X week Daily Maximum
Exceeded
No Action, BPJ4128ug/l 46.4
12 - 2018 001 Effluent Chlorine, Total Residual 12/06/18 3 X week Daily Maximum
Exceeded
No Action, BPJ3328ug/l 17.9
12 - 2018 001 Effluent Chlorine, Total Residual 12/11/18 3 X week Daily Maximum
Exceeded
No Action, BPJ4528ug/l 60.7
12 - 2018 001 Effluent Chlorine, Total Residual 12/18/18 3 X week Daily Maximum
Exceeded
No Action, BPJ3728ug/l 32.1
12 - 2018 001 Effluent Chlorine, Total Residual 12/19/18 3 X week Daily Maximum
Exceeded
No Action, BPJ3128ug/l 10.7
12 - 2018 001 Effluent Chlorine, Total Residual 12/20/18 3 X week Daily Maximum
Exceeded
No Action, BPJ3728ug/l 32.1
12 - 2018 001 Effluent Chlorine, Total Residual 12/28/18 3 X week Daily Maximum
Exceeded
No Action, BPJ4528ug/l 60.7
01 - 2019 001 Effluent Chlorine, Total Residual 01/02/19 3 X week Daily Maximum
Exceeded
No Action, BPJ4928ug/l 75
01 - 2019 001 Effluent Chlorine, Total Residual 01/03/19 3 X week Daily Maximum
Exceeded
No Action, BPJ4728ug/l 67.9
01 - 2019 001 Effluent Chlorine, Total Residual 01/04/19 3 X week Daily Maximum
Exceeded
No Action, BPJ4228ug/l 50
01 - 2019 001 Effluent Chlorine, Total Residual 01/15/19 3 X week Daily Maximum
Exceeded
No Action, BPJ3128ug/l 10.7
MRs Between and Violation Category:Program Category:
Param Name County:Subbasin:%Violation Action:
Major Minor:%
Permit:
Facility Name:
Region:--NC0021601
%%
%
%
Limit Violation %
%
8 2016 2 2020
MONITORING REPORT(MR) VIOLATIONS for:03/10/20Report Date:18Page:of 25
PERMIT:NC0021601 FACILITY:Town of Tryon - Tryon WWTP COUNTY:Polk REGION:Asheville
%
Over
UNIT OF
MEASURE VIOLATION ACTIONVIOLATION TYPECALCULATED
VALUELIMITFREQUENCYVIOLATION
DATEPARAMETERLOCATIONMONITORING
REPORT
Limit Violation
OUTFALL
01 - 2019 001 Effluent Chlorine, Total Residual 01/16/19 3 X week Daily Maximum
Exceeded
No Action, BPJ4428ug/l 57.1
01 - 2019 001 Effluent Chlorine, Total Residual 01/17/19 3 X week Daily Maximum
Exceeded
No Action, BPJ4028ug/l 42.9
01 - 2019 001 Effluent Chlorine, Total Residual 01/24/19 3 X week Daily Maximum
Exceeded
No Action, BPJ3128ug/l 10.7
01 - 2019 001 Effluent Chlorine, Total Residual 01/31/19 3 X week Daily Maximum
Exceeded
No Action, BPJ3428ug/l 21.4
02 - 2019 001 Effluent Chlorine, Total Residual 02/05/19 3 X week Daily Maximum
Exceeded
No Action, BPJ4828ug/l 71.4
02 - 2019 001 Effluent Chlorine, Total Residual 02/13/19 3 X week Daily Maximum
Exceeded
No Action, BPJ4728ug/l 67.9
02 - 2019 001 Effluent Chlorine, Total Residual 02/14/19 3 X week Daily Maximum
Exceeded
No Action, BPJ4428ug/l 57.1
02 - 2019 001 Effluent Chlorine, Total Residual 02/21/19 3 X week Daily Maximum
Exceeded
No Action, BPJ3328ug/l 17.9
02 - 2019 001 Effluent Chlorine, Total Residual 02/26/19 3 X week Daily Maximum
Exceeded
No Action, BPJ3628ug/l 28.6
02 - 2019 001 Effluent Chlorine, Total Residual 02/27/19 3 X week Daily Maximum
Exceeded
No Action, BPJ4128ug/l 46.4
02 - 2019 001 Effluent Chlorine, Total Residual 02/28/19 3 X week Daily Maximum
Exceeded
No Action, BPJ4928ug/l 75
03 - 2019 001 Effluent Chlorine, Total Residual 03/05/19 3 X week Daily Maximum
Exceeded
No Action, BPJ3528ug/l 25
03 - 2019 001 Effluent Chlorine, Total Residual 03/06/19 3 X week Daily Maximum
Exceeded
No Action, BPJ3928ug/l 39.3
03 - 2019 001 Effluent Chlorine, Total Residual 03/07/19 3 X week Daily Maximum
Exceeded
No Action, BPJ4828ug/l 71.4
03 - 2019 001 Effluent Chlorine, Total Residual 03/12/19 3 X week Daily Maximum
Exceeded
No Action, BPJ3728ug/l 32.1
03 - 2019 001 Effluent Chlorine, Total Residual 03/13/19 3 X week Daily Maximum
Exceeded
No Action, BPJ3728ug/l 32.1
MRs Between and Violation Category:Program Category:
Param Name County:Subbasin:%Violation Action:
Major Minor:%
Permit:
Facility Name:
Region:--NC0021601
%%
%
%
Limit Violation %
%
8 2016 2 2020
MONITORING REPORT(MR) VIOLATIONS for:03/10/20Report Date:19Page:of 25
PERMIT:NC0021601 FACILITY:Town of Tryon - Tryon WWTP COUNTY:Polk REGION:Asheville
%
Over
UNIT OF
MEASURE VIOLATION ACTIONVIOLATION TYPECALCULATED
VALUELIMITFREQUENCYVIOLATION
DATEPARAMETERLOCATIONMONITORING
REPORT
Limit Violation
OUTFALL
03 - 2019 001 Effluent Chlorine, Total Residual 03/19/19 3 X week Daily Maximum
Exceeded
No Action, BPJ4128ug/l 46.4
03 - 2019 001 Effluent Chlorine, Total Residual 03/20/19 3 X week Daily Maximum
Exceeded
No Action, BPJ4728ug/l 67.9
03 - 2019 001 Effluent Chlorine, Total Residual 03/26/19 3 X week Daily Maximum
Exceeded
No Action, BPJ3028ug/l 7.1
03 - 2019 001 Effluent Chlorine, Total Residual 03/27/19 3 X week Daily Maximum
Exceeded
No Action, BPJ2928ug/l 3.6
03 - 2019 001 Effluent Chlorine, Total Residual 03/28/19 3 X week Daily Maximum
Exceeded
No Action, BPJ4428ug/l 57.1
04 - 2019 001 Effluent Chlorine, Total Residual 04/02/19 3 X week Daily Maximum
Exceeded
No Action, BPJ3528ug/l 25
04 - 2019 001 Effluent Chlorine, Total Residual 04/04/19 3 X week Daily Maximum
Exceeded
No Action, BPJ3128ug/l 10.7
04 - 2019 001 Effluent Chlorine, Total Residual 04/11/19 3 X week Daily Maximum
Exceeded
No Action, BPJ3628ug/l 28.6
04 - 2019 001 Effluent Chlorine, Total Residual 04/16/19 3 X week Daily Maximum
Exceeded
No Action, BPJ4428ug/l 57.1
04 - 2019 001 Effluent Chlorine, Total Residual 04/18/19 3 X week Daily Maximum
Exceeded
No Action, BPJ4528ug/l 60.7
04 - 2019 001 Effluent Chlorine, Total Residual 04/22/19 3 X week Daily Maximum
Exceeded
No Action, BPJ3828ug/l 35.7
04 - 2019 001 Effluent Chlorine, Total Residual 04/30/19 3 X week Daily Maximum
Exceeded
No Action, BPJ3728ug/l 32.1
05 - 2019 001 Effluent Chlorine, Total Residual 05/01/19 3 X week Daily Maximum
Exceeded
No Action, BPJ4628ug/l 64.3
05 - 2019 001 Effluent Chlorine, Total Residual 05/02/19 3 X week Daily Maximum
Exceeded
No Action, BPJ3328ug/l 17.9
05 - 2019 001 Effluent Chlorine, Total Residual 05/07/19 3 X week Daily Maximum
Exceeded
No Action, BPJ4428ug/l 57.1
05 - 2019 001 Effluent Chlorine, Total Residual 05/09/19 3 X week Daily Maximum
Exceeded
No Action, BPJ4428ug/l 57.1
MRs Between and Violation Category:Program Category:
Param Name County:Subbasin:%Violation Action:
Major Minor:%
Permit:
Facility Name:
Region:--NC0021601
%%
%
%
Limit Violation %
%
8 2016 2 2020
MONITORING REPORT(MR) VIOLATIONS for:03/10/20Report Date:20Page:of 25
PERMIT:NC0021601 FACILITY:Town of Tryon - Tryon WWTP COUNTY:Polk REGION:Asheville
%
Over
UNIT OF
MEASURE VIOLATION ACTIONVIOLATION TYPECALCULATED
VALUELIMITFREQUENCYVIOLATION
DATEPARAMETERLOCATIONMONITORING
REPORT
Limit Violation
OUTFALL
05 - 2019 001 Effluent Chlorine, Total Residual 05/14/19 3 X week Daily Maximum
Exceeded
No Action, BPJ4028ug/l 42.9
05 - 2019 001 Effluent Chlorine, Total Residual 05/15/19 3 X week Daily Maximum
Exceeded
No Action, BPJ3228ug/l 14.3
05 - 2019 001 Effluent Chlorine, Total Residual 05/16/19 3 X week Daily Maximum
Exceeded
No Action, BPJ3328ug/l 17.9
05 - 2019 001 Effluent Chlorine, Total Residual 05/21/19 3 X week Daily Maximum
Exceeded
No Action, BPJ4528ug/l 60.7
05 - 2019 001 Effluent Chlorine, Total Residual 05/22/19 3 X week Daily Maximum
Exceeded
No Action, BPJ3028ug/l 7.1
05 - 2019 001 Effluent Chlorine, Total Residual 05/28/19 3 X week Daily Maximum
Exceeded
No Action, BPJ3128ug/l 10.7
05 - 2019 001 Effluent Chlorine, Total Residual 05/29/19 3 X week Daily Maximum
Exceeded
No Action, BPJ4828ug/l 71.4
05 - 2019 001 Effluent Chlorine, Total Residual 05/30/19 3 X week Daily Maximum
Exceeded
No Action, BPJ3328ug/l 17.9
06 - 2019 001 Effluent Chlorine, Total Residual 06/04/19 3 X week Daily Maximum
Exceeded
No Action, BPJ4228ug/l 50
06 - 2019 001 Effluent Chlorine, Total Residual 06/05/19 3 X week Daily Maximum
Exceeded
No Action, BPJ4228ug/l 50
06 - 2019 001 Effluent Chlorine, Total Residual 06/06/19 3 X week Daily Maximum
Exceeded
No Action, BPJ3128ug/l 10.7
06 - 2019 001 Effluent Chlorine, Total Residual 06/11/19 3 X week Daily Maximum
Exceeded
No Action, BPJ3828ug/l 35.7
06 - 2019 001 Effluent Chlorine, Total Residual 06/12/19 3 X week Daily Maximum
Exceeded
No Action, BPJ3128ug/l 10.7
06 - 2019 001 Effluent Chlorine, Total Residual 06/13/19 3 X week Daily Maximum
Exceeded
No Action, BPJ4428ug/l 57.1
06 - 2019 001 Effluent Chlorine, Total Residual 06/18/19 3 X week Daily Maximum
Exceeded
No Action, BPJ3628ug/l 28.6
06 - 2019 001 Effluent Chlorine, Total Residual 06/19/19 3 X week Daily Maximum
Exceeded
No Action, BPJ2928ug/l 3.6
MRs Between and Violation Category:Program Category:
Param Name County:Subbasin:%Violation Action:
Major Minor:%
Permit:
Facility Name:
Region:--NC0021601
%%
%
%
Limit Violation %
%
8 2016 2 2020
MONITORING REPORT(MR) VIOLATIONS for:03/10/20Report Date:21Page:of 25
PERMIT:NC0021601 FACILITY:Town of Tryon - Tryon WWTP COUNTY:Polk REGION:Asheville
%
Over
UNIT OF
MEASURE VIOLATION ACTIONVIOLATION TYPECALCULATED
VALUELIMITFREQUENCYVIOLATION
DATEPARAMETERLOCATIONMONITORING
REPORT
Limit Violation
OUTFALL
06 - 2019 001 Effluent Chlorine, Total Residual 06/20/19 3 X week Daily Maximum
Exceeded
No Action, BPJ4428ug/l 57.1
06 - 2019 001 Effluent Chlorine, Total Residual 06/25/19 3 X week Daily Maximum
Exceeded
No Action, BPJ2928ug/l 3.6
06 - 2019 001 Effluent Chlorine, Total Residual 06/27/19 3 X week Daily Maximum
Exceeded
No Action, BPJ3328ug/l 17.9
07 - 2019 001 Effluent Chlorine, Total Residual 07/01/19 3 X week Daily Maximum
Exceeded
No Action, BPJ3328ug/l 17.9
07 - 2019 001 Effluent Chlorine, Total Residual 07/03/19 3 X week Daily Maximum
Exceeded
No Action, BPJ3428ug/l 21.4
07 - 2019 001 Effluent Chlorine, Total Residual 07/09/19 3 X week Daily Maximum
Exceeded
No Action, BPJ4728ug/l 67.9
07 - 2019 001 Effluent Chlorine, Total Residual 07/11/19 3 X week Daily Maximum
Exceeded
No Action, BPJ4928ug/l 75
07 - 2019 001 Effluent Chlorine, Total Residual 07/17/19 3 X week Daily Maximum
Exceeded
No Action, BPJ4828ug/l 71.4
07 - 2019 001 Effluent Chlorine, Total Residual 07/18/19 3 X week Daily Maximum
Exceeded
No Action, BPJ4928ug/l 75
07 - 2019 001 Effluent Chlorine, Total Residual 07/23/19 3 X week Daily Maximum
Exceeded
No Action, BPJ4028ug/l 42.9
07 - 2019 001 Effluent Chlorine, Total Residual 07/31/19 3 X week Daily Maximum
Exceeded
No Action, BPJ4628ug/l 64.3
08 - 2019 001 Effluent Chlorine, Total Residual 08/01/19 3 X week Daily Maximum
Exceeded
No Action, BPJ3728ug/l 32.1
08 - 2019 001 Effluent Chlorine, Total Residual 08/06/19 3 X week Daily Maximum
Exceeded
No Action, BPJ4128ug/l 46.4
08 - 2019 001 Effluent Chlorine, Total Residual 08/07/19 3 X week Daily Maximum
Exceeded
No Action, BPJ4628ug/l 64.3
08 - 2019 001 Effluent Chlorine, Total Residual 08/14/19 3 X week Daily Maximum
Exceeded
No Action, BPJ4228ug/l 50
08 - 2019 001 Effluent Chlorine, Total Residual 08/15/19 3 X week Daily Maximum
Exceeded
No Action, BPJ3228ug/l 14.3
MRs Between and Violation Category:Program Category:
Param Name County:Subbasin:%Violation Action:
Major Minor:%
Permit:
Facility Name:
Region:--NC0021601
%%
%
%
Limit Violation %
%
8 2016 2 2020
MONITORING REPORT(MR) VIOLATIONS for:03/10/20Report Date:22Page:of 25
PERMIT:NC0021601 FACILITY:Town of Tryon - Tryon WWTP COUNTY:Polk REGION:Asheville
%
Over
UNIT OF
MEASURE VIOLATION ACTIONVIOLATION TYPECALCULATED
VALUELIMITFREQUENCYVIOLATION
DATEPARAMETERLOCATIONMONITORING
REPORT
Limit Violation
OUTFALL
08 - 2019 001 Effluent Chlorine, Total Residual 08/20/19 3 X week Daily Maximum
Exceeded
No Action, BPJ3728ug/l 32.1
08 - 2019 001 Effluent Chlorine, Total Residual 08/22/19 3 X week Daily Maximum
Exceeded
No Action, BPJ4428ug/l 57.1
08 - 2019 001 Effluent Chlorine, Total Residual 08/27/19 3 X week Daily Maximum
Exceeded
No Action, BPJ4028ug/l 42.9
08 - 2019 001 Effluent Chlorine, Total Residual 08/28/19 3 X week Daily Maximum
Exceeded
No Action, BPJ4728ug/l 67.9
09 - 2019 001 Effluent Chlorine, Total Residual 09/03/19 3 X week Daily Maximum
Exceeded
No Action, BPJ3728ug/l 32.1
09 - 2019 001 Effluent Chlorine, Total Residual 09/04/19 3 X week Daily Maximum
Exceeded
No Action, BPJ3028ug/l 7.1
09 - 2019 001 Effluent Chlorine, Total Residual 09/05/19 3 X week Daily Maximum
Exceeded
No Action, BPJ4428ug/l 57.1
09 - 2019 001 Effluent Chlorine, Total Residual 09/10/19 3 X week Daily Maximum
Exceeded
No Action, BPJ4928ug/l 75
09 - 2019 001 Effluent Chlorine, Total Residual 09/19/19 3 X week Daily Maximum
Exceeded
No Action, BPJ4928ug/l 75
09 - 2019 001 Effluent Chlorine, Total Residual 09/24/19 3 X week Daily Maximum
Exceeded
No Action, BPJ3728ug/l 32.1
09 - 2019 001 Effluent Chlorine, Total Residual 09/25/19 3 X week Daily Maximum
Exceeded
No Action, BPJ4428ug/l 57.1
10 - 2019 001 Effluent Chlorine, Total Residual 10/02/19 3 X week Daily Maximum
Exceeded
No Action, BPJ3328ug/l 17.9
10 - 2019 001 Effluent Chlorine, Total Residual 10/03/19 3 X week Daily Maximum
Exceeded
No Action, BPJ3028ug/l 7.1
10 - 2019 001 Effluent Chlorine, Total Residual 10/08/19 3 X week Daily Maximum
Exceeded
No Action, BPJ4528ug/l 60.7
10 - 2019 001 Effluent Chlorine, Total Residual 10/10/19 3 X week Daily Maximum
Exceeded
No Action, BPJ4628ug/l 64.3
10 - 2019 001 Effluent Chlorine, Total Residual 10/15/19 3 X week Daily Maximum
Exceeded
No Action, BPJ4228ug/l 50
MRs Between and Violation Category:Program Category:
Param Name County:Subbasin:%Violation Action:
Major Minor:%
Permit:
Facility Name:
Region:--NC0021601
%%
%
%
Limit Violation %
%
8 2016 2 2020
MONITORING REPORT(MR) VIOLATIONS for:03/10/20Report Date:23Page:of 25
PERMIT:NC0021601 FACILITY:Town of Tryon - Tryon WWTP COUNTY:Polk REGION:Asheville
%
Over
UNIT OF
MEASURE VIOLATION ACTIONVIOLATION TYPECALCULATED
VALUELIMITFREQUENCYVIOLATION
DATEPARAMETERLOCATIONMONITORING
REPORT
Limit Violation
OUTFALL
10 - 2019 001 Effluent Chlorine, Total Residual 10/16/19 3 X week Daily Maximum
Exceeded
No Action, BPJ3828ug/l 35.7
10 - 2019 001 Effluent Chlorine, Total Residual 10/17/19 3 X week Daily Maximum
Exceeded
No Action, BPJ3728ug/l 32.1
10 - 2019 001 Effluent Chlorine, Total Residual 10/23/19 3 X week Daily Maximum
Exceeded
No Action, BPJ4328ug/l 53.6
10 - 2019 001 Effluent Chlorine, Total Residual 10/30/19 3 X week Daily Maximum
Exceeded
No Action, BPJ4628ug/l 64.3
10 - 2019 001 Effluent Chlorine, Total Residual 10/31/19 3 X week Daily Maximum
Exceeded
No Action, BPJ4428ug/l 57.1
11 - 2019 001 Effluent Chlorine, Total Residual 11/05/19 3 X week Daily Maximum
Exceeded
No Action, BPJ4928ug/l 75
11 - 2019 001 Effluent Chlorine, Total Residual 11/06/19 3 X week Daily Maximum
Exceeded
No Action, BPJ3928ug/l 39.3
11 - 2019 001 Effluent Chlorine, Total Residual 11/13/19 3 X week Daily Maximum
Exceeded
No Action, BPJ3828ug/l 35.7
11 - 2019 001 Effluent Chlorine, Total Residual 11/19/19 3 X week Daily Maximum
Exceeded
No Action, BPJ4528ug/l 60.7
11 - 2019 001 Effluent Chlorine, Total Residual 11/20/19 3 X week Daily Maximum
Exceeded
No Action, BPJ3128ug/l 10.7
11 - 2019 001 Effluent Chlorine, Total Residual 11/21/19 3 X week Daily Maximum
Exceeded
No Action, BPJ4728ug/l 67.9
11 - 2019 001 Effluent Chlorine, Total Residual 11/25/19 3 X week Daily Maximum
Exceeded
No Action, BPJ4728ug/l 67.9
11 - 2019 001 Effluent Chlorine, Total Residual 11/27/19 3 X week Daily Maximum
Exceeded
No Action, BPJ3428ug/l 21.4
12 - 2019 001 Effluent Chlorine, Total Residual 12/05/19 3 X week Daily Maximum
Exceeded
No Action, BPJ3628ug/l 28.6
12 - 2019 001 Effluent Chlorine, Total Residual 12/10/19 3 X week Daily Maximum
Exceeded
No Action, BPJ3528ug/l 25
12 - 2019 001 Effluent Chlorine, Total Residual 12/11/19 3 X week Daily Maximum
Exceeded
No Action, BPJ3028ug/l 7.1
MRs Between and Violation Category:Program Category:
Param Name County:Subbasin:%Violation Action:
Major Minor:%
Permit:
Facility Name:
Region:--NC0021601
%%
%
%
Limit Violation %
%
8 2016 2 2020
MONITORING REPORT(MR) VIOLATIONS for:03/10/20Report Date:24Page:of 25
PERMIT:NC0021601 FACILITY:Town of Tryon - Tryon WWTP COUNTY:Polk REGION:Asheville
%
Over
UNIT OF
MEASURE VIOLATION ACTIONVIOLATION TYPECALCULATED
VALUELIMITFREQUENCYVIOLATION
DATEPARAMETERLOCATIONMONITORING
REPORT
Limit Violation
OUTFALL
12 - 2019 001 Effluent Chlorine, Total Residual 12/12/19 3 X week Daily Maximum
Exceeded
No Action, BPJ4628ug/l 64.3
12 - 2019 001 Effluent Chlorine, Total Residual 12/17/19 3 X week Daily Maximum
Exceeded
No Action, BPJ4228ug/l 50
12 - 2019 001 Effluent Chlorine, Total Residual 12/18/19 3 X week Daily Maximum
Exceeded
No Action, BPJ3628ug/l 28.6
12 - 2019 001 Effluent Chlorine, Total Residual 12/19/19 3 X week Daily Maximum
Exceeded
No Action, BPJ3928ug/l 39.3
12 - 2019 001 Effluent Chlorine, Total Residual 12/23/19 3 X week Daily Maximum
Exceeded
No Action, BPJ4828ug/l 71.4
12 - 2019 001 Effluent Chlorine, Total Residual 12/30/19 3 X week Daily Maximum
Exceeded
No Action, BPJ4228ug/l 50
12 - 2019 001 Effluent Chlorine, Total Residual 12/31/19 3 X week Daily Maximum
Exceeded
No Action, BPJ4628ug/l 64.3
01 - 2020 001 Effluent Chlorine, Total Residual 01/02/20 3 X week Daily Maximum
Exceeded
No Action, BPJ4328ug/l 53.6
01 - 2020 001 Effluent Chlorine, Total Residual 01/07/20 3 X week Daily Maximum
Exceeded
No Action, BPJ4628ug/l 64.3
01 - 2020 001 Effluent Chlorine, Total Residual 01/09/20 3 X week Daily Maximum
Exceeded
No Action, BPJ4728ug/l 67.9
01 - 2020 001 Effluent Chlorine, Total Residual 01/14/20 3 X week Daily Maximum
Exceeded
No Action, BPJ3628ug/l 28.6
01 - 2020 001 Effluent Chlorine, Total Residual 01/15/20 3 X week Daily Maximum
Exceeded
No Action, BPJ3128ug/l 10.7
01 - 2020 001 Effluent Chlorine, Total Residual 01/16/20 3 X week Daily Maximum
Exceeded
No Action, BPJ4928ug/l 75
01 - 2020 001 Effluent Chlorine, Total Residual 01/21/20 3 X week Daily Maximum
Exceeded
No Action, BPJ3628ug/l 28.6
01 - 2020 001 Effluent Chlorine, Total Residual 01/22/20 3 X week Daily Maximum
Exceeded
No Action, BPJ3328ug/l 17.9
01 - 2020 001 Effluent Chlorine, Total Residual 01/28/20 3 X week Daily Maximum
Exceeded
No Action, BPJ3728ug/l 32.1
MRs Between and Violation Category:Program Category:
Param Name County:Subbasin:%Violation Action:
Major Minor:%
Permit:
Facility Name:
Region:--NC0021601
%%
%
%
Limit Violation %
%
8 2016 2 2020
MONITORING REPORT(MR) VIOLATIONS for:03/10/20Report Date:25Page:of 25
PERMIT:NC0021601 FACILITY:Town of Tryon - Tryon WWTP COUNTY:Polk REGION:Asheville
%
Over
UNIT OF
MEASURE VIOLATION ACTIONVIOLATION TYPECALCULATED
VALUELIMITFREQUENCYVIOLATION
DATEPARAMETERLOCATIONMONITORING
REPORT
Limit Violation
OUTFALL
01 - 2020 001 Effluent Chlorine, Total Residual 01/29/20 3 X week Daily Maximum
Exceeded
No Action, BPJ4328ug/l 53.6
01 - 2020 001 Effluent Chlorine, Total Residual 01/30/20 3 X week Daily Maximum
Exceeded
No Action, BPJ4628ug/l 64.3
EPA
United States Environmental Protection Agency
Washington, D.C. 20460
Water Compliance Inspection Report
Form Approved.
OMB No. 2040-0057
Approval expires 8-31-98
Section A: National Data System Coding (i.e., PCS)
Transaction Code NPDES yr/mo/day Inspection Type Inspector Fac Type
1 N 52 NC0021601 20/03/16 C S31112171819 20
21 66
Inspection Work Days Facility Self-Monitoring Evaluation Rating B1 QA ----------------------Reserved-------------------
N67707172 73 74 75 80
Section B: Facility Data
Name and Location of Facility Inspected (For Industrial Users discharging to POTW, also include
POTW name and NPDES permit Number)
Tryon WWTP
1526 E Howard St
Tryon NC 28782
Entry Time/Date Permit Effective Date
Exit Time/Date Permit Expiration Date
09:00AM 20/03/16 16/06/01
Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s)
///
Deborah M Bradley/ORC/828-859-5626/
Michael Justin Fife/ORC/825-859-8626/
Other Facility Data
11:00AM 20/03/16 18/12/31
Name, Address of Responsible Official/Title/Phone and Fax Number
Deborah Bradley, /ORC/828-894-2048/Contacted
No
Section C: Areas Evaluated During Inspection (Check only those areas evaluated)
Permit Flow Measurement Operations & Maintenance Records/Reports
Self-Monitoring Program Sludge Handling Disposal Pollution Prevention Facility Site Review
Pretreatment Effluent/Receiving Waters Laboratory
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
(See attachment summary)
Name(s) and Signature(s) of Inspector(s)Agency/Office/Phone and Fax Numbers Date
Mikal Willmer DWR/Division of Water Quality/828-296-4686/
Signature of Management Q A Reviewer Agency/Office/Phone and Fax Numbers Date
EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete.
Page#1
NPDES yr/mo/day
20/03/16
Inspection Type
C3111218
1
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
Inspector Mikal Willmer, with the Asheville Regional Office, conducted a compliance evaluation
inspection of the Tryon WWTP on March 16, 2020. This inspection was conducted to determine
whether the facility is operating in compliance with NPDES Permit No. NC0021601. Deborah Bradley
(ORC) and Michael Fife (BORC) were present and assisted in the inspection.
The facility appeared to be in compliance at the time of the inspection. Comments/recommendations
are listed below.
Maintenance: The Town has been taking active steps to improve facility performance and make repairs.
Since the last inspection in 2018, the weirs and center feed well in clarifier #2 have been repaired, two
new pumps have been installed in the scum box and RAS pumps have been rehabilitated. The weir
teeth in clarifier #1 still need to be replaced and should be kept in the budget to be completed once
major deficiencies in the collection system are addressed.
Flow: Staff report average flows are 0.25 MGD and currently no new growth or expansion within the
system. Continue to assess the current mechanical bar screen. Mr. Fife and Ms. Bradley indicated the
mechanical screen has issues handling flows above 0.7 MGD. The facility is rated for 1.5 MGD. A
reduction in I&I from the collection system would reduce these flow swings. The Town is currently
working on projects within the CS.
Chlorine/Dechlor: Facility utilizes chlorine gas a liquid calcium thisoulfate solution. Chlorine Sales &
Services replaces all tubing and calibrates feed equipment once a year. Feeds were flow paced;
however, the system had trouble consistently feeding small doses, so it is now a manual feed. Staff
report they do not have to adjust feed rates too often. If manually feeding, more process control checks
during rain events is recommended to maintain adequate disinfection. Solids are removed
approximately once a year from the contact chamber.
Receiving Stream: no visual impacts noted at the time of the inspection. The foam observed in 2018
was not observed during this inspection.
NC0021601 17 (Cont.)
Page#2
Permit:NC0021601
Inspection Date:03/16/2020
Owner - Facility:
Inspection Type:
Tryon WWTP
Compliance Evaluation
Operations & Maintenance Yes No NA NE
Is the plant generally clean with acceptable housekeeping?
Does the facility analyze process control parameters, for ex: MLSS, MCRT, Settleable
Solids, pH, DO, Sludge Judge, and other that are applicable?
DO, pH, setteable solids, MLSSComment:
Permit Yes No NA NE
(If the present permit expires in 6 months or less). Has the permittee submitted a new
application?
Is the facility as described in the permit?
# Are there any special conditions for the permit?
Is access to the plant site restricted to the general public?
Is the inspector granted access to all areas for inspection?
See staff report for updates to current treatment components/description. Permit is in
renewal since 2018 and draft is forthcoming.
Comment:
Record Keeping Yes No NA NE
Are records kept and maintained as required by the permit?
Is all required information readily available, complete and current?
Are all records maintained for 3 years (lab. reg. required 5 years)?
Are analytical results consistent with data reported on DMRs?
Is the chain-of-custody complete?
Dates, times and location of sampling
Name of individual performing the sampling
Results of analysis and calibration
Dates of analysis
Name of person performing analyses
Transported COCs
Are DMRs complete: do they include all permit parameters?
Has the facility submitted its annual compliance report to users and DWQ?
(If the facility is = or > 5 MGD permitted flow) Do they operate 24/7 with a certified operator
on each shift?
Is the ORC visitation log available and current?
Is the ORC certified at grade equal to or higher than the facility classification?
Is the backup operator certified at one grade less or greater than the facility classification?
Is a copy of the current NPDES permit available on site?
Page#3
Permit:NC0021601
Inspection Date:03/16/2020
Owner - Facility:
Inspection Type:
Tryon WWTP
Compliance Evaluation
Record Keeping Yes No NA NE
Facility has copy of previous year's Annual Report on file for review?
Comment:
Effluent Pipe Yes No NA NE
Is right of way to the outfall properly maintained?
Are the receiving water free of foam other than trace amounts and other debris?
If effluent (diffuser pipes are required) are they operating properly?
Comment:
Flow Measurement - Effluent Yes No NA NE
# Is flow meter used for reporting?
Is flow meter calibrated annually?
Is the flow meter operational?
(If units are separated) Does the chart recorder match the flow meter?
Facility uses influent flow meter for reporting. Matt Lassiter calibrates meters annually in
December.
Comment:
Solids Handling Equipment Yes No NA NE
Is the equipment operational?
Is the chemical feed equipment operational?
Is storage adequate?
Is the site free of high level of solids in filtrate from filter presses or vacuum filters?
Is the site free of sludge buildup on belts and/or rollers of filter press?
Is the site free of excessive moisture in belt filter press sludge cake?
The facility has an approved sludge management plan?
Facility maintains a Class B permit (WQ0004341) with dedicated fields. Additionally, the
Town is pursuing additional fields to add to their permit.
Comment:
Bar Screens Yes No NA NE
Type of bar screen
a.Manual
b.Mechanical
Are the bars adequately screening debris?
Is the screen free of excessive debris?
Page#4
Permit:NC0021601
Inspection Date:03/16/2020
Owner - Facility:
Inspection Type:
Tryon WWTP
Compliance Evaluation
Bar Screens Yes No NA NE
Is disposal of screening in compliance?
Is the unit in good condition?
Mechanical screen can accomodate flows up to approximately 700,000 gallons and then the
manual screen has to be used. This is usually only during rain events due to I&I within the
collection system.
Comment:
Secondary Clarifier Yes No NA NE
Is the clarifier free of black and odorous wastewater?
Is the site free of excessive buildup of solids in center well of circular clarifier?
Are weirs level?
Is the site free of weir blockage?
Is the site free of evidence of short-circuiting?
Is scum removal adequate?
Is the site free of excessive floating sludge?
Is the drive unit operational?
Is the return rate acceptable (low turbulence)?
Is the overflow clear of excessive solids/pin floc?
Is the sludge blanket level acceptable? (Approximately ¼ of the sidewall depth)
Clarifier #2: Weirs were replaced, and repairs were made to the center feed well. Clarifier
#1: Weir teeth still need to be replaced; however, other wastewater infrastructure projects
have temporarily taken priority. Appears to be even flow over rusting weirs and no visual
pin-floc or solids exiting the clarifiers at the time of the inspection.
Comment:
Aeration Basins Yes No NA NE
Mode of operation Ext. Air
Type of aeration system Surface
Is the basin free of dead spots?
Are surface aerators and mixers operational?
Are the diffusers operational?
Is the foam the proper color for the treatment process?
Does the foam cover less than 25% of the basin’s surface?
Is the DO level acceptable?
Is the DO level acceptable?(1.0 to 3.0 mg/l)
One active and one inactive Aeration Basin. Staff indicate they attempt to keep DOs below 3
mg/L in the active aeration basin. Wastewater is tinted due to contributions from IU CYP.
Comment:
Page#5
Permit:NC0021601
Inspection Date:03/16/2020
Owner - Facility:
Inspection Type:
Tryon WWTP
Compliance Evaluation
De-chlorination Yes No NA NE
Type of system ?Liquid
Is the feed ratio proportional to chlorine amount (1 to 1)?
Is storage appropriate for cylinders?
# Is de-chlorination substance stored away from chlorine containers?
Are the tablets the proper size and type?
Use calcium thiosulfate.Comment:
Are tablet de-chlorinators operational?
Number of tubes in use?
Comment:
Pumps-RAS-WAS Yes No NA NE
Are pumps in place?
Are pumps operational?
Are there adequate spare parts and supplies on site?
RAS pumps rehabed.Comment:
Standby Power Yes No NA NE
Is automatically activated standby power available?
Is the generator tested by interrupting primary power source?
Is the generator tested under load?
Was generator tested & operational during the inspection?
Do the generator(s) have adequate capacity to operate the entire wastewater site?
Is there an emergency agreement with a fuel vendor for extended run on back-up power?
Is the generator fuel level monitored?
Fuel is checked regularly and tests automatically every other week.Comment:
Influent Sampling Yes No NA NE
# Is composite sampling flow proportional?
Is sample collected above side streams?
Is proper volume collected?
Is the tubing clean?
# Is proper temperature set for sample storage (kept at less than or equal to 6.0 degrees
Celsius)?
Page#6
Permit:NC0021601
Inspection Date:03/16/2020
Owner - Facility:
Inspection Type:
Tryon WWTP
Compliance Evaluation
Influent Sampling Yes No NA NE
Is sampling performed according to the permit?
Comment:
Effluent Sampling Yes No NA NE
Is composite sampling flow proportional?
Is sample collected below all treatment units?
Is proper volume collected?
Is the tubing clean?
# Is proper temperature set for sample storage (kept at less than or equal to 6.0 degrees
Celsius)?
Is the facility sampling performed as required by the permit (frequency, sampling type
representative)?
Comment:
Aerobic Digester Yes No NA NE
Is the capacity adequate?
Is the mixing adequate?
Is the site free of excessive foaming in the tank?
# Is the odor acceptable?
# Is tankage available for properly waste sludge?
Facility does not have a digester. Facility utilizes a thickener and sludge holding pond before
land application of residuals
Comment:
Disinfection-Gas Yes No NA NE
Are cylinders secured adequately?
Are cylinders protected from direct sunlight?
Is there adequate reserve supply of disinfectant?
Is the level of chlorine residual acceptable?
Is the contact chamber free of growth, or sludge buildup?
Is there chlorine residual prior to de-chlorination?
Does the Stationary Source have more than 2500 lbs of Chlorine (CAS No. 7782-50-5)?
If yes, then is there a Risk Management Plan on site?
If yes, then what is the EPA twelve digit ID Number? (1000-____-____)
If yes, then when was the RMP last updated?
Page#7
Permit:NC0021601
Inspection Date:03/16/2020
Owner - Facility:
Inspection Type:
Tryon WWTP
Compliance Evaluation
Disinfection-Gas Yes No NA NE
Comment:
Page#8
State of North Carolina
Division of Water Resources
Water Quality Regional Operations Section
Staff Report
FORM: WQROSSR 04-14 Page 1 of 5
To: NPDES Unit Non-Discharge Unit Application No.: NC0021601
Attn: Nick Coco Facility name: Tryon WWTP
From: Mikal Willmer
Asheville Regional Office
Note: This form has been adapted from the non-discharge facility staff report to document the review of both non-
discharge and NPDES permit applications and/or renewals. Please complete all sections as they are applicable.
I. GENERAL AND SITE VISIT INFORMATION
1. Was a site visit conducted? Yes or No
a. Date of site visit: 3/16/2020
b. Site visit conducted by: Mikal Willmer
c. Inspection report attached? Yes or No In LF
d. Person contacted: Deborah Bradley and their contact information: (828) 859 - 5626 ext.
e. Driving directions: Take exit 67 towards Tryon off of I-26 E. Turn right onto 108 W and continue to
Tryon. Turn left on E Howard St (at light near Ford Dealer). Continue on E Howard St. until you reach
the WWTP.
2. Discharge Point(s): (listed point in BIMS is further upstream than actual discharge point)
Latitude:35.212976 Longitude: -82.219250
Latitude: Longitude:
3. Receiving stream or affected surface waters: Vaughn Creek
Classification: C
River Basin and Subbasin No. Broad – 030501015 (Upper Broad)
Describe receiving stream features and pertinent downstream uses: Vaughn Creek is protected for
secondary recreational use and is tributary to the North Pacolet River, also Class C.
II. PROPOSED FACILITIES: NEW APPLICATIONS
1. Facility Classification: (Please attach completed rating sheet to be attached to issued permit)
Proposed flow:
Current permitted flow:
2. Are the new treatment facilities adequate for the type of waste and disposal system? Yes or No
If no, explain:
3. Are site conditions (soils, depth to water table, etc) consistent with the submitted reports? Yes No N/A
If no, please explain:
4. Do the plans and site map represent the actual site (property lines, wells, etc.)? Yes No N/A
If no, please explain:
DocuSign Envelope ID: 73BA0793-D573-4F14-B46B-BDA1B3C1ACE2
FORM: WQROSSR 04-14 Page 2 of 5
5. Is the proposed residuals management plan adequate? Yes No N/A
If no, please explain:
6. Are the proposed application rates (e.g., hydraulic, nutrient) acceptable? Yes No N/A
If no, please explain:
7. Are there any setback conflicts for proposed treatment, storage and disposal sites? Yes or No
If yes, attach a map showing conflict areas.
8. Is the proposed or existing groundwater monitoring program adequate? Yes No N/A
If no, explain and recommend any changes to the groundwater monitoring program:
9. For residuals, will seasonal or other restrictions be required? Yes No N/A
If yes, attach list of sites with restrictions (Certification B)
Describe the residuals handling and utilization scheme:
10. Possible toxic impacts to surface waters:
11. Pretreatment Program (POTWs only):
III. EXISTING FACILITIES: MODIFICATION AND RENEWAL APPLICATIONS
1. Are there appropriately certified Operators in Charge (ORCs) for the facility? Yes No N/A
ORC: Deborah Bradley Certificate #: 991330 Backup ORC: Michael Fife Certificate #:1005209
2. Are the design, maintenance and operation of the treatment facilities adequate for the type of waste and disposal
system? Yes or No
If no, please explain:
Description of existing facilities: A 1.5 MGD extended aeration facility which consists of primary screens,
bypass bar screen, parshall flume, extended aeration, two circular secondary clarifiers, chlorine gas with
liquid dechlorination and post aeration. Sludge is sent to a thickener and then to a sludge holding pond
before it’s land applied .
Proposed flow: N/A
Current permitted flow: 1.5 MGD
Explain anything observed during the site visit that needs to be addressed by the permit, or that may be important
for the permit writer to know (i.e., equipment condition, function, maintenance, a change in facility ownership,
etc.) Facility is well maintained; however, the weir teeth in Clarifier #1 is still in need of replacement. Teeth
in Clarifier #2 have been replaced.
3. Are the site conditions (e.g., soils, topography, depth to water table, etc) maintained appropriately and adequately
assimilating the waste? Yes or No N/A
If no, please explain:
4. Has the site changed in any way that may affect the permit (e.g., drainage added, new wells inside the compliance
boundary, new development, etc.)? Yes or No
If yes, please explain:
5. Is the residuals management plan adequate? Yes or No
If no, please explain:
6. Are the existing application rates (e.g., hydraulic, nutrient) still acceptable? Yes or No N/A
If no, please explain: Tryon WWTP holds has a Class B permit for the land application of residuals
7. Is the existing groundwater monitoring program adequate? Yes No N/A
If no, explain and recommend any changes to the groundwater monitoring program:
8. Are there any setback conflicts for existing treatment, storage and disposal sites? Yes or No
If yes, attach a map showing conflict areas.
DocuSign Envelope ID: 73BA0793-D573-4F14-B46B-BDA1B3C1ACE2
FORM: WQROSSR 04-14 Page 3 of 5
9. Is the description of the facilities as written in the existing permit correct? Yes or No
If no, please explain: The facility does not have an aerobic digester. Tryon utilizes a Thickening Tank and
Sludge Holding Pond.
10. Were monitoring wells properly constructed and located? Yes No N/A
If no, please explain:
DocuSign Envelope ID: 73BA0793-D573-4F14-B46B-BDA1B3C1ACE2
FORM: WQROSSR 04-14 Page 4 of 5
11. Are the monitoring well coordinates correct in BIMS? Yes No N/A
If no, please complete the following (expand table if necessary):
Monitoring Well Latitude Longitude
12. Has a review of all self-monitoring data been conducted (e.g., DMR, NDMR, NDAR, GW)? Yes or No
Please summarize any findings resulting from this review: No NPDES limit violations since the permit
renewal in 2016. Two monitoring violations in 2018.
Provide input to help the permit writer evaluate any requests for reduced monitoring, if applicable.
13. Are there any permit changes needed in order to address ongoing BIMS violations? Yes or No
If yes, please explain:
14. Check all that apply:
No compliance issues Current enforcement action(s) Currently under JOC
Notice(s) of violation Currently under SOC Currently under moratorium
Please explain and attach any documents that may help clarify answer/comments (i.e., NOV, NOD, etc.)
If the facility has had compliance problems during the permit cycle, please explain the status. Has the RO been
working with the Permittee? Is a solution underway or in place? NOD issued during 2017 compliance
inspection. Weirs were severely rusted and it was recommended they be replaced. The Town had put out
bids as of the March 2018 inspection, but the Town Manager indicated a decision would not be made until
the new fiscal year. Update as of latest inspection on 3/16/2020. Complete weir replacement in clarifier #2
and repair of center feed well was completed. Waiting on funding to complete replacement of weir teeth in
clarifier #1.
Have all compliance dates/conditions in the existing permit been satisfied? Yes No N/A
If no, please explain:
15. Are there any issues related to compliance/enforcement that should be resolved before issuing this permit?
Yes No N/A
If yes, please explain:
16. Possible toxic impacts to surface waters:
17. Pretreatment Program (POTWs only): Tryon WWTP has one SIU (Carolina Yarn Processors)
DocuSign Envelope ID: 73BA0793-D573-4F14-B46B-BDA1B3C1ACE2
FORM: WQROSSR 04-14 Page 5 of 5
IV. REGIONAL OFFICE RECOMMENDATIONS
1. Do you foresee any problems with issuance/renewal of this permit? Yes or No
If yes, please explain:
2. List any items that you would like the NPDES Unit or Non-Discharge Unit Central Office to obtain through an
additional information request:
Item Reason
3. List specific permit conditions recommended to be removed from the permit when issued:
Condition Reason
4. List specific special conditions or compliance schedules recommended to be included in the permit when issued:
Condition Reason
5. Recommendation: Hold, pending receipt and review of additional information by regional office
Hold, pending review of draft permit by regional office
Issue upon receipt of needed additional information
Issue
Deny (Please state reasons: )
6. Signature of report preparer:
Signature of regional supervisor:
Date:
V. ADDITIONAL REGIONAL STAFF REVIEW ITEMS
See attached NPDES and Pretreatment inspection reports for any additional comments or observations.
Discussed potential new limits with permittee. Recommend a compliance schedule to allow permittee time to
first assess potential contributions of copper and chloride into the system.
DocuSign Envelope ID: 73BA0793-D573-4F14-B46B-BDA1B3C1ACE2
3/19/2020