HomeMy WebLinkAboutWQ0010619_Application_20190226�m
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February 26, 2019
NCDENR
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Phone (828) 926-0866 • Fax (828)926-3576 • 3987 Soco Rd., Maggie Valley, NC 28751
DWQ
Aquifer Protection Section
Land Application Unit
1636 Mail Service Center
Raleigh, NC 27699-1636
Re: Town of Maggie Valley
Amended Distribution of residual solids permit renewal
Haywood County, North Carolina _
Please find enclosed the original and two copies of the signed Distribution of Class A Residuals
Form (DCAR 06-16) and attachments, including Program Information, Process Flow Diagram,
Biosolids Product Information Guide, Operations and Maintenance Plan for Distribution of
Residual Solids, Renewal for the Town of Maggie Valley's existing permit #WQ0010615.
Also please find enclosed the original and two copies of the signed Residuals Source
Certification (RSC 06-16) and attachments including Residual Source Facility Summary,
Vicinity Maps, Process Flow Diagram, Residuals Source Generating Facility Information,
Residuals Quality Information and Analytical Reports.
• Ignitability Testing is by Method Code SW846-1030, which produces a reported value of
<0.8 mm/sec.
Please review the enclosed information and contact me at (828) 400-9494 or by e-mail at
mmehaffey@maggievalle ny__c.gov if you have any questions or if additional information is
required.
Thank you,
Mike Mehaffey
Public Works Director / ORC
Town of Maggie Valley
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DWR,
State of North Carolina
Department of Environmental Quality
Division of Water Resources
Division of Water Resources 15A NCAC 02T .1100 —DISTRIBUTION OF CLASS A RESIDUALS
FORM: DCAR 06-16
I. APPLICANT INFORMATION:
1. Applicant's name: Nathan Clark
Applicant type: ❑ Individual ❑ Corporation ❑ General Partnership ❑ Privately -Owned Public Utility
El Federal ❑ State x Municipal ❑ County
Signature authority's name per 15A NCAC 02T .0106: Nathan Clark Title: Town Manager
Applicant's mailing address: 3987 Soco Road
City: Maggie Valley State: NC Zip: 28751-
Telephone number: 828 926-0866 Email Address: nclark(&maggievalleync.gov
2. Consultant's name: License Number (for P.E.):
Affiliation: 0 On Staff ❑ Retained (Firm: )
Consultant's mailing address:
City: State: Zip:
Telephone number: (_) = Email Address:
3. Fee submitted: (See Instruction B)
II. PERMIT INFORMATION:
1. Application is for (check all that apply): ❑ new, M modified, x renewed permit
2. If this application is being submitted to renew or modify an existing permit, provide the following:
Permit number: W00010615
Date of most -recently issued permit: February 7, 2014
Date of most -recently certified Attachment A (if different than the permit):
III. FACILITY INFORMATION:
l . Name of residuals processing facility: Town of Maggie Valley WWTP
City: Waynesville State: NC Zip: 28785-
Coordinates: Latitude: 35' 36' 59" Longitude: 83' 00' 24"
Datum: Level of accuracy:
Method of measurement:
County where facility is located: Haywood
2. Facility contact (person familiar with residuals preparation):
Name: Mike Mehaffev Title: ORC
Mailing address: 3987 Soco Road
City: Maggie Valle v State: NC
-Telephone number: (828) 926-0866
Zip: 28751-
E-mail address: mmehaffey(imaggievalleync.gov
FORM: DCAR 06-16 Pagel of 3
3. Is the residual process facility also the generator? x Yes; ❑ No
If No, please specify delivery frequency and quantity of residual to be processed:
4. Length of residuals storage at facility: 30 days (Note: the Division requires minimum 30 days storage in units that are separate
from treatment system, i.e. not in clarifiers, aeration basins, etc.)
IV. RESIDUALS QUALITY INFORMATION:
1. Specify how these residuals will be distributed:
sold or given away in bags or other containers; x lawn (bulk); x home garden (bulk);
x other (explain); Agriculture (bulkl
Note: Bulk residuals shall mean residuals that are transported and not sold or giving away in a bag or other receptacles with a
load capacity of one metric ton or less.
2. Complete the following if residuals are to be mixed with other materials:
Type of Materials
Amounts to be added
er 1.0 dry ton of residuals ton
Kiln Lime Dust
1.0 tons approximately
3. Approximate amounts of the residuals received and processed at the facility: 150 dry tons per year.
4. Approximate amounts of the final product (processed residuals) to be distributed: 300 dry tons per year.
5. Provide a description of the onsite storage management plan for the treated residuals (including estimated average and
maximum storage times prior to distribution): Residuals are stored on covered concrete pad. The average storage time is 30
days and the maximum time is approximately 120 days.
6. Does the facility have a stormwater management plan? x Yes; fl No
Explain whether the treatment and storage areas are under roof or how stormwater runoff will be handled: 4,800 sq ft Covered
Residuals Storage Area
V. RESIDUALS SOURCE INFORMATION: (Required for all new, renewed, or modified residuals source)
Complete and submit the attached Residuals Source Certification and all associated documentation.
fil
RSC 06-16.doc
FORM: DCAR 06-16 Page 2 of 3
Professional Engineer's Certification: (Application Involving New or Changes to Treatment or Storage Units)
attest that this application for
has been reviewed by me and is accurate and complete to the best of my knowledge. I further attest that to the best of my knowledge
the proposed design has been prepared in accordance with the applicable regulations. Although certain portions of this submittal package
may have been developed by other professionals, inclusion of these materials under my signature and seal signifies that I have reviewed
this material and have judged it to be consistent with the proposed design.
North Carolina Professional Engineer's Seal, Signature, and Date:
Applicant's Certification:
The applicant or any affiliate has not been convicted of an environmental crime, has not abandoned a wastewater facility without proper
closure, does not have an outstanding civil penalty where all appeals have been exhausted or abandoned, are compliant with any active
compliance schedule, and do not have any overdue annual fees under Rule 15A NCAC 02T .0105.
x Yes [] No, Explain;
I, Nathan Clark Town Manaeer
(Signature Authority's Name — PLEASE PRINT) (Title)
attest that this application for Town of Maggie Valley WWTP
(Facility Name)
has been reviewed by me and is accurate and complete to the best of my knowledge. I understand that the Division of Water Resources
may not conduct a technical review of this program and approval does not constitute a variance to any rules or statutes unless specifically
granted in the permit. Further, any discharge of residuals to surface waters or the land will result in an immediate enforcement action,
which may include civil penalties, injunctive relief, and/or criminal prosecution. I will make no claim against the Division of Water
Resources should a condition of this permit be violated. I also understand that if all required parts of this application are not completed
and that if all required supporting information and attachments are not included, this application package will be returned to me as
incomplete.
Note: In accordance with North Carolina General Statutes § 143-215.6A and § 143-215.613, any person who knowingly makes any false
statement, representation, or certification in any application shall be guilty of a Class 2 misdemeanor, which may include a fine not to
exceed $10,000 as well as civil penalties up to $25,000 per violation.
Signature: Date: 22 26
FORM: DCAR 06-16 Page 3 of 3
D. PROGRAM INFORMATION:
1. Materials Handling
The wastewater treatment residuals will be produced and treated on the same site.
The residuals will be pumped from the digesters through a belt filter press and then
conveyed to the alkaline stabilization process equipment. The processed material will
then be placed in a pile for 72 hours for PH and temperature monitoring. Upon
completion of the 72-hour monitoring period, the residuals will be windrowed on a
covered concrete pad for additional drying and conditioning. Leachate from covered
concrete pad will be collected and returned to the wastewater treatment plant. The
dried material will be stockpiled on a portion of the pad until it is disbursed in bulk to
area farmers and landscape professionals. Length of storage will vary depending on
season and demand.
2. Marketability
The finished product will be suited as an agricultural and landscape lime -type product
and mulch additive. The volume of finished product produced at the full 1.0 MGD
design flow is projected to be 793 cubic yards per year (Design Calculations,
Wastewater Treatment Plant Improvements, Town of Maggie Valley; May 1999,
Revised March, 2000). The current 0.3 MGD — 0.4 MGD flow will produce
significantly less finished residual product.
3. Label/Information Sheet
The information sheet that will be provided to the recipients of the residuals is
attached.
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Town of Maggie Valley
Biosolid Product Information Guide
The Maggie Valley Biosolid Product is a combination of highly treated domestic
sewage sludge and either lime kiln dust or cement kiln dust. The high alkalinity
and heat created by the interaction of the lime or cement kiln dust with the
sewage sludge destroys pathogenic organisms and produces a safe agriculturally
beneficial product.
The production of this product is closely regulated by the U S Environmental
Protection Agency and the North Carolina Division of Water Quality. The biosolid
product is carefully prepared and routinely monitored to insure that all product
made available to the public is in compliance with all applicable regulations.
The product is an alkaline material and contains some trace plant nutrients. The
Division of Water Quality has placed the following requirements on the use of this
product to insure that no environmental or health impacts will occur:
The biosolid product shall be used and applied only in a manner consistent with
good agricultural or horticultural practice and the information contained herein.
The product shall not be applied:
• To any site that is flooded, frozen or snow covered;
• Within ten feet of any public or private water supply source (including
wells);
• Within ten feet of any stream, lake, river or natural drainage way
Adequate procedures must be provided to insure that surface storm water runoff
does not carry applied or stored product into any surface water body.
The biosolid product shall be applied at agronomic or recommended rates for
intended uses.
This product is prepared by the Town of Maggie Valley,
3987 Soco Road, Maggie Valley, NC 28751.
For additional information please contact Mike Mehaffey at 828-926-0866.
H. Residuals Operations and Maintenance Plan
Town of Maggie Valley Wastewater Treatment Plant
Operations and Maintenance Plan
Operational Functions:
During normal operation, mixed liquor from the aeration basins is conveyed by airlifts to the
digester units. In the digesters, the aeration diffusers are periodically turned off to allow the
contents of the basins to settle. Once the sludge is settled and the supernatant has risen to the top
of the basins, additional mixed liquor is conveyed into the basins, thus causing the supernatant to
overflow a weir into the aeration basins. The residuals are then stabilized by digestion,
dewatered by the belt filter press, and then processed through the N-Viro stabilization unit.
The N-Viro unit is designed to achieve Class A pathogen Reduction Requirements by
"Alternative 2: Sewage Sludge Treated in a High pH -High Temperature Process (Alkaline
Treatment [503.32 (a) (4)]." The alkaline admixture raises the pH of the overall mixture to
greater than 12. This pH is maintained for a minimum of 72 hours. The sludge and alkaline
admixture combination is retained in the heat pulse bin to insure compliance with the
requirement to maintain a temperature of 52°C (126°F) at least 12 hours during the period that
the pH is greater then 12. In the heat pulse bin, the sludge is monitored to ensure that the pH and
temperature requirements are meet. Monitoring for fecal coliform and/or salmonellae is also
periodically conducted to ensure pathogen reduction. The processed sludge is then cured and
dried to the required 50 percent solids on a covered concrete pad. The required vector attraction
reduction is achieved by compliance with Option 6 [503.33 (b) (6)], the addition of sufficient
alkali to raise the pH to at least 12 at 25°C (77°F) and maintain a pH greater than or equal to 12
for 2 hours and a pH greater than or equal to 11.5 for 22 more hours. This is achieved during the
pathogen reduction process and the monitoring detailed above is conducted to ensure that the
requirements are met.
According to EPA's criteria in the 40 CFR 503 regulations, sludge may be considered Class A if
both pathogen requirements and vector attraction reduction requirements can be met. The Class
A product can then be made available to agricultural, horticultural, and home users.
Maintenance Schedules:
All equipment utilized in this process is operated and maintained in accordance with the
equipment manufacturer's recommendations. Mechanical equipment is checked for proper
operation prior to each use in accordance with those instruction. All bearings are greased prior
to use on the belt filter press and lime stabilization equipment and all electrical switches are
checked.
Safety Measures:
All equipment is operated in accordance with the safety recommendations contained in their
respective operations and maintenance manuals. The belt filter press is equipped with a safety
Page 1 of 3
rope that surrounds the press which allows the operator to disable the operation of the equipment
by pulling the safety rope.
In addition, all public works staff members are required to attend annual safety training pertinent
to their job responsibilities including, but not limited to blood borne pathogens, fire extinguisher
use, hazard communications, lock out tag out procedures, electrical safety, hearing conservation,
and personal protective equipment.
Spill Response Plan
The primary constituents which comprise the residuals management process include liquid
sludge, liquid polymer and lime kiln dust. Each of these liquid constituents is contained in spill -
containment areas throughout the process. Through these spill -containment areas, any liquid
spill is contained in these areas and is ultimately drained to the head of the wastewater treatment
process. The lime kiln dust is contained in a solo immediately outside the residuals processing
building (under the covered concrete pad). Any spill of this material is easily contained
immediately adjacent to the silo and can be cleaned up promptly. For this reason, no formal spill
response plans is necessary for this process.
Inspection Plan
Names and Titles of Personnel Responsible for Conducting Inspections:
Mike Mehaffey, ORC, Grade 4 WWTP Operator
Mike Corbin, Backup ORC, Grade 2 WWTP Operator
Seth Boyd, Backup ORC In -Training, Grade 3 WWTP
Frequency and Location of Inspections
Residuals are produced through the use of a batch process. Inspection of the equipment
associated with the process is conducted prior to the start of each batch and throughout the
production run. As described below, sampling and monitoring of this process is conducted on a
quarterly basis with all testing being conducted at an onsite laboratory.
Sampling and Monitoring Plan
Names and Titles of Personnel Responsible for Conducting Sampling and Monitoring_
Mike Mehaffey, ORC, Grade 4 WWTP Operator
Mike Corbin, Backup ORC, Grade 2 WWTP Operator
Seth Boyd, Backup ORC In -Training, Grade 3 WWTP
Detailed Description of Monitoring Procedures including Parameters to be Monitored:
As indicated above, residuals are produced utilizing a batch process. Therefore, during testing, a
batch of residuals is monitored for pH and temperature throughout the process.
Page 2 of 3
Sampling Frequency and Procedures to Assure Representative Sampling
To ensure regulatory compliance with the requirements described above, composite samples are
taken from the batch process upon production. These composite samples consist of numerous
smaller samples which are collected from throughout the entire batch to account for any
unforeseen variations in the quality of the batch process. These samples are then combined into
a single sample to be tested. Each sample is then tested daily for conformance with the standards
described above. The results of these daily tests are documented on a worksheet. All equipment
utilized in recording these test results including thermometers and pH meters is regularly
calibrated and certified by an independent testing service. Sampling is conducted on a quarterly
basis including those times that may produce the most limiting pathogen and vector attraction
compliance. Typically, this testing is conducted during January, April, July and October of each
year.
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