Technical Exhibit 4 - Monitoring and Analytical Requirements VA0087327.pdf

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SOLICITATION NOTICE for Waste-Water Treatment Plant Operation Services
Solicitation number
70Z08424QAA550100
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This document summarizes the key permit requirements and monitoring parameters for a municipal wastewater treatment facility discharge permit in Virginia. The facility discharges directly to the Chincoteague Channel and the receiving waters are not listed as impaired. Monitoring must be conducted for fecal coliform, enterococcus, and oil and grease. Permit limits will be more stringent for fecal coliform and enterococcus to ensure compliance with water quality standards prior to discharge. Special condition rationales and toxics monitoring requirements are detailed in attachments. Public comments were sought and the Virginia Department of Health, Division of Shellfish Sanitation commented to reserve the right to comment on and object to the adequacy of the draft permit as it relates to shellfish sanitation.

The related federal opportunity appears to be a solicitation notice for waste-water treatment plant operation services for the U.S. Coast Guard. No other details are provided regarding the scope of services, response deadline, or place of performance in the excerpt provided.

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ANTIDEGRADATION REVIEW:

^J^e}^ng/^eam, has, been_class^^d as^tier 2; therefore, no significant d^ad^^^oL^hl. exlstlng water quality will-be-allowed:"see"a^i^egrad^i;on calculations/determinations. Refer-to item#30 for discussion"on ammo^"

ANTIBACKSLIDING REVIEW:

There_are no backslidin9 issues to address in this permit (i. e., limits as stringent or more stringent when compared to the previous permit) ~^"^"

SEE ATTACHMENT 5

SPECIAL CONDITIONS RATIONALE:

SEE ATTACHMENT 6

TOXICS MONITORING/TOXICS REDUCTION AND WET LIMIT SPECIAL CONDITIONS RATIONALE:

N/A

SLODGE DISPOSAL PLAN:

^S^lh?llSl^s^er^e^'^^i^^^. ^^^^^£^1s^ LSrr'p"^'l'lla^?l^^t^3°sl ^l^nr:lf^esr1 ^^

23. MATERIAL STORED:

21.

25.

26.

NONE.

RECEIVING WATERS INFORMATION:

SEE ATTACHMENT 7: Tier determination, river mile designation 303(d) Listed Se ents:

T^s^^i^ty. d"^ha;cges-directly to the chi"coteague Channel. TMDLS are not ^l^e!^n, !hilpermit _as, the recelvin9 waters ~arrn ot"]:i"^ed on1'^ ^I(ldFlist.

SSup^i^^s. ^^r. ^l^y based_llmits for fecal c°lif°m~'and"ent:ero^^i wh^h requires compliance with the standard prior to discharge7see~attachment"7^

CHANGES TO PERMIT: See TABLE III(a) and TABLE III(b)

ATTACHMENT 8

NPDES INDUSTRIAL PERMIT RATING WORKSHEET:

N/A - This is a municipal facility.

DEQ PLANNING COMMENTS RECEIVED ON DRAFT PERMIT:

Th" ^acnlty ls mentio^d_in the-water quality management plan 9VAC25-720-l^o^fa"l^ty_is assigned WLA for oil and Grease. Oii'and"G^ease'rs "not'an-antlclpated. source however' to be in conformance the~2022 permit wIlFadF monitoring for oil and grease and address the need for-a~llmit~in"the ne^t ^ristshue^aThis discharge is in co"£°""ance with the existing planning'do'cume^s

29. PUBLIC PARTICIPATION:

VDH/DSS/VMRC COMMENTS RECEIVED ON APPLICATION:

w^re^ed-. vlDH-of£:L^e.. of__Drinking water application comments on Feb. 10, 2022. They stated S^ ̂ e5L"^no, p^uc raw-w^er_"takes"downstream'or"UPStr^' f?om^the^J:schar^ Irla" ^y. wa^edthe^ight, to. colnlnent. and/oro^ect to the adequacy'of the"dra£t"pennTt!° ""' ^ls j^s^on^of. sheuflsh_sanltation <DSS) sent coinmentFon'February^S^O^r bating that pro:iect ls_locafced in. or ad3acent to condemned shellfish growing'waters'and^he' a?^^y' ^Ldesc^bed\wnl_not-_cause an i"°"ase-inthe-size:'or"t e^f'~the°eristTng ^^^atSLVi^i^^ne. Resour^s^ommlsslon. (^CLStated'b?^mah^ece^ 2"Lthat they-hadno ob3ections °r further comment, as VDH-has~indicated~therrwm"^ev'no°' change in the closure area related to shellfish.

EPA COMMENTS RECEIVED ON DRAFT PERMIT:

EPA waived the right to comment and/or object to the adequacy of the draft permit.

ADJACENT STATE COMMENTS RECEIVED ON DRAFT PERMIT:

Not Applicable.

OTHER AGENCY COMMENTS RECEIVED ON DRAFT PERMIT:

Thl. vDH waived their right to comment and/or object to the adequacy ,of the draft

OTHER COMMENTS RECEIVED FROM RIPARIAN OWNERS/CITIZENS ON DRAFT PERMIT:

Th^application and. draft permit have received public notice in accordance with t.he

. t Regulation, and no comments were received.

PUBLIC NOTICE INFORMATION: Comment Period.-

30.

Start Date:

End Date:

4/27/22 5/27/22

P^rsons_may^comment in_writing or by e-mail to the DEQ on the proposed reissuance of the^permit within 30 days from the date of the first noticeT-~Address"a][r comments^ to the contact person listed below. Written or e-mail comments shall the name, address, and telephone number of the writer, -and"shall contain a complete'_concise statement. of the factual basis for comments'. ~0nly~those' ^omments-, received. within. this Period will be considered. The Director~of~the DEQ may de"de to. hold a Publi^ hearing if public response is significant" f^r^public gearings shall state_the reason why a hearing~is~^eques^ed; thFna^e °^the "sues_proposed to. be raised in the Public hearing-and7~brief'explanation of_how^he_requestor's interests would be directly and adversely~affecteFb7thr proposed permit action.

A11 pertlnent__information is on file and may be inspected, and arrangements made f^Lcopying bycontacting R. E, Smithson at': Department-of Environme^taT

' T^dewater Regional Office, 5636 Southern"Boulevard, Virginia~Beach7''VA'

23462. Telephone: 757-705-9761 E-mail: robert. 8mithsonjr@deqTvirgInIa"gov^

Following the comment period, the Board will make a determination reqardincr the proposed reissuance. This determination will become effective^unless~the:

Director grants a public hearing. Due notice of any public^hearFng'will'be given.

ADDITIONAL FACT SHEET COMMENTS/PERTINENT INFORMATION:

T. e_facillty has an extended aeration-activated sludge package treatment plant followed by_sand^filtration to meet tertiary limitations "A~'moderwas run to

^eCTli;ne ^Lthe-TKN_llmlt__of 3-° mg/l was. Protective against~ammonia''toxlcity" Quarterly Ammonia-N monitoring was added since modeling''efforts""indicate"thatj an

2L5SHSH,?

SIS^^^^^^^ z ̂ ^^. ^s?

TABLE II - MUNICIPAL_EFFLUENT LIMITATIONS/MONITORING

ATTACHMENT 4

^UTraLL ̂ -001^_ - DESIGN FLOW: 0. 006MGD S?S;EDe^^pt:^ Domestic waste^-^rs. all USCG Station

(X) Final Limits ( ) interim Limits Effective Dates -

PARAMETER & UNITS

Flow (MOD) [a]

PH (S. U.)

BODS (mg/1)[c]

BOD5 (kg/d)

Influent BOD5 (mg/1)[d]

BODS Percent Removal [d]

TSS (mg/1)[c]

TSS (kg/d)

Influent TSS (mg/1)[d]

TSS Percent Removal [d]

TRC (mg/1) [b][c]

Fecal Coliform (N/CML)**[b]

Enterococci (N/CML)**[b]

Ammonia-Nitrogen (mg/1)[c]

D. O. (mg/1)

Total Kjeldahl Nitrogen (TKN)(mg/1)[c]

Total Kjeldahl Nitrogen (TKN)(kg/d) Oil & Grease (mg/1)

From: Reissuance Date TO: Expiration Date

BASIS

FOR

LIMITS

DESIGN PLOW

MULTIPLIER

. 006

. 006

MONTHLY

AVERAGE

NL

NA

0. 23

NL

85%

0. 23

NL

85%

0. 013

NL

NA

3.0

0. 07

NL

EFFLUENT

WEEKLY

AVERAGE

NA

NA

0. 34

NA

NA

0. 34

NA

NA

0. 015

NA

NA

NA

NA

4.5

0. 10

NA

LIMITATIONS

MINIMUM

NA

6.0

NA

NA

NA

NA

NA

NA

NA

NA

NA

NA

NA

NA

5.0

NA

NA

NA

MAXIMUM

NL

9.0

NA

NA

NA

NA ,

NA

NA

NA

NA

NA

NA

NA

NA

NA

NA

NA

NA

MONITORING

FREQUENCT

l/Day l/Day

1/Month

1/Month

1/Month

1/Year

1/Month

1/Month

1/Month

1/Year

1/Day 1/Month

(Between 10 am & 4 pm)

1/Week (Betwn 10 am

& 4 pm) 1/3 Months l/Day

1/Month

1/Month l/Year

REQUIREMENTS

SAMPLE

TYPE

Estimate

Grab

Grab

Grab

Grab[e]

Calculation

Grab

Grab

Grab[e]

Calculation

Grab

Grab

Grab

Grab

Grab

Grab

Grab

Grab

TABLE III(a)

1.

VPDES PERMIT PROGRAM

Permit Processin chan e Sheet

PAS^E^ER MONITORING_LIMITS CHANGED EFFLUENT LIMITS CHANGED

Effl CHANGED FROM TO FROM TO

Influent BODS NA to NL No limit

BODS % removal NA to mo avg. calculation N/A to 85% removal

Influent TSS NA to NL No limit

TSS % Removal NA to mo. avg. calculation NA to 85% removal

Oil & Grease NA to NL once per year No limit

OTHER CHANGES FROM:

Added geometric mean requirement for Fecal colifom and enterococci sampling methodology

Added secondary treatment requirements and ermit maintenance fee s ecial conditions

CHANGED TO:

RATIONALE

Added parameter to calculate the BOD5 ercent removal Added parameter to calculate the BODS ercent removal

Added parameter to calculate the TSS ercent removal

Added parameter to calculate the TSS ercent removal dded parameter per ater quality mgt.

lan to be in conformance with WLA

DATE &

INITIAL

RES .

3/02/22

RES

3/02/22

RES

3/02/22

RES

3/02/22

RES

5/24/22

DATE &

INITIAL

RES

03/02/22

RES

03/02/22

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