WQ0002284_Staff Report_20020515

I
NON -DISCHARGE REGIONAL WATER QUALITY
STAFF REPORT AND REC0AMENDATIONS
To: Non -Discharge Permitting Unit
Reviewer. Nathaniel C. Thornburg
Application No.: W00002284
Permitee: Outer Banks/Kinnakeet Associates,- LLC _ .
Regional Login No:
GENERAL INFORMATION
1. This application is (ch=k an the applyy ❑ New ❑ Renewal
❑ Minor Modification ® Major Modification
❑ Surface. Irrigation ® Reuse ❑ Recycle ❑ High Rate Infiltration
® Evaporation/Infiltration Lagoon ❑ Land -Application of Residuals ❑ Distribution of Residuals
® 503 regulated .0 503 exempt ❑ Surface Disposal
r
2. Was a site visit conducted in order to prepare this report? ® Yes or ❑ No. '
a. Date of site visit: site visited on several occasions
b. Person contacted and contact information: Ray Hollowell - Manager
c. Site visit conducted by: Al Hodge
d Inspection Report Attached: ❑ Yes or ® No.
3. Is the following information entered into the BIMS record for this application correct?
❑ Yes or ❑ No. If no, please complete the following or indicate that it is correct on the current
application.
For Treatment Facilities
a. Location: South of Avon, NC in Dare Co. off NC 12
b. Driving Directions: The development is located on the west side of hwv 12 approximated one
mile south of the traffic light in Avon.
c. USGS Quadrangle Map name and number: Buxton
d. Latitude: 35-20-00 Longitude: 75-62-00
e. Regulated Activities) Type of Wastes (e.g., subdivision, food processing, municipal wastewater):
subdivision, & strip mall is to be served by this ymV
For Disposal Sites:
(If multiple sites either indicate which sites the information applies to copy and paste a new section
into the document for each site, or attach additional pages for each site)
a. Location(s): same as above
b. Driving Directions: same as above
c. USGS Quadrangle. Map name and number: Buxton
d. Latitude: 35-20Longitude: 75-30
FORM: NDSRR 01/02 1 DRAFT

,4'
NON -DISCHARGE REGIONAL WATER QUALITY
STAFF REPORT AND RECOAMENDATIONS
NEWAND MAJOR MODIFIC 4TIONAPPLICATIONS (this section not needed for renewals or
minor Modificaartimm sJfrip to neid sation)
DESCRIPTION OF WASTES) AND FACn
1. Please attach completed rating sheet. Facility Classification: Grade 11 Biological with Biological
Nutrient Reduction (per this application)
2. Are the new treatment facilities adequate for the type of -waste and disposal system?
❑ Yes ® No ❑ N/A. If no, please' explain: Ins my request for additional information I have
comments riling some treatment units being adMg!a p. see attached comments
3. Are the new site conditions (soils, topography,. etc) consistent. with what was reported by the soil
scientist and/or Professional Engineer? ® Yes ❑ No ❑ N/A. If no, please explain:
4. Is the proposed residuals management plan for the adequate and/or acceptable to the Division.
® Yes ❑ No ❑ N/A_ If no, please explain:
5. Are the proposed application rates for new sites (hydraulic or nutrient) acceptable?
® Yes ❑ No ❑ N/A. If no, please explain: The application rate for the infiltration pond is based
on low rate <l.5gpd/sq$.. This application rate permits groundwater lowering structures as close as
25 L. This application shows the need to update the regulations. This project proposes a groundwater
lowering ditch with a lift station 951f from the infiltration pond which discharges to SA waters.
6. Are the new treatment facilities or any new disposal sites located in a 100-year floodplain?
❑ Yes ❑ No ❑ N/A. If yes, please attach a map showing areas of 100-year floodplain and please
explain and recommend any mitigative measures/special conditions in Part IV:
7._ Are there any buffer conflicts (new treatment facilities or new disposal sites)? ❑ Yes or ® No. If
yes, please attach a map showing conflict areas or attach any new maps you have received from the
applicant to be incorporated into the permit:
FORM: NDSRR 01/02 2 DRAFT

NON -DISCHARGE REGIONAL WATER QUALITY
STAFF REPORTiAND:RECOAMENDATIONS
RENEWAL AND MODMCATIONAPPLICATIONS (use previous sadion for iew or ma3or .,
nadiitrcation systems)
DESCRIPTION OF WASTEM AND FAC17 ffM
L Are there an appropriately certified ORCs for the facilities? ❑ Yes or ❑ No.
Operator in Charge: Bill Freed Certificate #:23702
Back Operator in Charge: Dave Roberson Certificate #:26918
2. Is the design, maintenance and operation (e g. adequate aeration, sludge wasting, sludge storage,
effluent storage, etc) of the treatment facilities adequate for the type of waste and disposal system?
® Yes or ❑ No. If no, please explain:
3. Are the site conditions (soils, topography, etc) maintained appropriately and adequately assimilating
the waste? ® Yes or ❑ No. If no, please explain:
4. Is the residuals management plan for the adequate and/or acceptable to the Division?
® Yes or ❑ No. If no, please explain:
5. Are the existing application razes (hydraulic or nutrient) still acceptable? ® Yes or ❑ No.' If no,
please explain:
6. Are there any buffer conflicts (treatment facilities or disposal sites)? ❑ Yes or ® No. If yes, please
attach a map showing conflict areas or attach any. new maps you have received from the applicant to
be incorporated into the permit:
7. Is the type and/or volume of waste(s) as written in the existing permit correct? ® Yes or ❑ No. If
no, please explain: _
8. Is the description of the facilities as written in the existing permit correct? ® Yes or ❑ No. If no,
please explain:
9. Has a review of all self monitoring data been conducted? ❑ Yes or ® No. Please summarize any
findings resulting from this review:
10. Check all that apply: ® No compliance issues; ® Notice(s) of violation within the last permit cycle;
❑ Current enforcement actions) ❑ Currently under SOC; ❑ Currently under JOC; ❑ Currently
under moratorium If any items checked, please explain and attach any documents that may help
clarify answer/comments (such as NOV, NOD etc): The existing 50,000 gpd plant is presently in
compliance. There have been compliance issues that have been corrected within the permit cycle
11. Have all compliance dates/conditions in the existing permit, SOC; JOC, etc. been complied with?
® Yes or ❑ No. If no, please explain:
FORM: NDSRR 01/02 3 DRAFT

NON -DISCHARGE REGIONAL WATER QUALITY
STAFF REPORT = AND RECOMMENDATIONS _
12. Are there any issues related to compliant enforcement that should be resolved before issuing this
permit? Yes or N No:: If yes, please explain:
FORM: NDSRR 01/02 4 DRAFT

NON -DISCHARGE REGIONAL WATER QUALITY
STAFF REPORT AND RECOAU14ENDATIONS
E VAL UA TION AND RECOAMENDATIOM
1. Provide any additional narrative regarding your review of the application.:
2. List any items that you would ldce NDPU to obtain through an additional information request. Make
sure that you provide areason for each
Item
Reason
This application proposes a traveling bridge filter.
The traveling bridge filter has several
This filter type does not meet the duplicate unit
individual cells however, all the ce114 are
req*ement of 02H .0404, in my opinion Also, the
blinded when excess solids come to the.
loading rate is 1.94 gpm/ft2 not 1.25 gpm/ft2.
filter.
25% flow equalization basin is not adequate, in my
see additional comments
opinon.
,
plan sheet RRD1 of 1 has a direct connection of
not allow per the regulations -
reuse and potable water -
drawing no. 152300wwl in tech specs
shows all flow routed through sludge .
- -
-
holding, please check
see additional staff review items
3. List specific Permit conditions that you recommend to be removed from the permit when issued
Make sure that you provide a reason for each condition:
4. List specific special conditions or compliance schedules.that you recommend to be included in the
permit when issued Make sure that you provides reason for each special condition: -
Condition
Reasow .
Surface water should be monitored in the
nutrient load on the sound
dewatering structure. total Nitrogen, and
phosphorus
-
Soil testing for SAR
effluent quality points to a need
There should be an effluent limit for NO3. The
groundwater standards could not be met at
hydro report used 10 mg/1 it the predictive model.
the compliance boundary other wise
FORM: NDSRR 01/02 5 DRAFT

NON -DISCHARGE REGIONAL WATER QUALITY
STAFF REPORTAND RECOMMENDATIONS
unable to locate the proposed application frequency needed for permit information
and amounts for each zone
5. Recommendation: ® Hold, pending receipt and review of additional information by regional office;
❑ Hold, pending review ofdraft permit by regional office; ❑ Issue; ❑ Deny. - If deny, please state
reasons:
6. Signature_ of report preparer. Aj H O1
'Signature of WQS regional supervisor: ��— A --
Date:
ADDITIONAL REGIONAL STAFF REVIEW ITEMS
#1 Flow equalization: The regulations require at least 25% flow equalization. 25% of design flow
has been the standard for some time. I have recently been involved with a wwtp that has excessed its
design capacity. As a part of the permit modification a ww flow evaluation was performed. In short it
showed that 25%equalization was not adquate much beyond 50% of design flow. This is the first
flow equalization evaluation of an existing wastewater flows at design capacity the Washington
Regional Office has ever reviewed. The study concluded that 40% flow equalization was needed in
order to maintain the design flow rate. It is recommended that 40% be required for all facilities in a
#2 The detention time in the anoxic basin is determined by the nitrate removal rate #NO3/#VSS-&v.
In the absence of pilot data in order to be conservative the lowest rate should be picked The removal.
rate is directly portional to the projected wwt plant water temperature, the lower the minimum .
temperature the lower the projected removal rate. In the tech specs there are two temperature ranges,
the minimum in both is 70 deg. F.. A review of the Town of Manteds wwtp records show average
monthly effluent temperatures of 12-01 57 deg F,1-01 53 deg F, 2-01 59 deg F, 3-01 59 deg F, 4-01
64 deg F, 5-01 66 deg F, 6-01 77 dej F, . I believe these numbers reflect temperatures that Kinnakeet
Shores will have.Please justify the chosen minimum temperature.
#3 2H .0404(g)(3) states in brief all essential treatment and disposal unit shall be in duplicate.
Aren't the anoxic zone, & equalization basin essential?
#4 In regard to the sprang of reuse water into isolated ponds not tributary to surface waters of the
state. I can't find where the regulations address this issue specifically and I am unaware of .
FORM: NDSRR 01/02 6 DRAFT

NON -DISCHARGE REGIONAL WATER QUALITY
STAFF REPORT AND REC0AMENDATIONS,
recommending the issuance of a permit with more than incidental spray into an isolated pond -
However, if this RMoect proposed to spray into these ponds and therefore use these ponds as
infiltration ponds a bydrpgeologic evaluation must be =formed
#5 The spray zones must have an individual designation so that the self-monitoring_rcports may be
evaluated.
#6 Can each zone be sprayed independently? It appears zones six and seven must be sprayed
together.
FORM: NDSRR 01/02 7 DRAFT

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7 1''1 1 10-A-1'0. W I I I I I 1 679-
Name: BUXTON Location: 035° 2(Y 49.1" N 075° 31' 03.7" W
Date: 5/10/102 Caption: Kmriakeet Shores
Scale: 1 iich equals 1176 feet WQ0002284
Reuse System
Copyright (C) 1997, Meptech, hrc.

WATER POLLMON--CONTROL�.SYS'rEM OPI�R.ATORS f 7.,-,-
- _ - CERTT�ICA�'ION CONiMISSIO ... . -
[�_A Scrn`iCAUON;
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CONTACT orb LEMONF--
PERMIT NO:
RCheck Onm NC WQ BEAT TH DP
'RATING INFORMATION= (Before campic4g this s=don, please referto
pages 2-4)
Pr R FLOW: ,?j'5 C� MGD BNR? .YES NO
CHECK CLA_ SS'Ii~TCATION WASTEWATER..:3 4
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COLLECTION:.: , 1 - . 2 V 3
SPRAY IMCTATIQN SUBSURFACE LArID APPLICA'IT„ -
_ ON
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decfica]�d f°° T � appl cations dua?s are p�m&=d by
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Classificafion of PbysicaUCb®ical Water PoBution Control Treatment System= �-
:;
- - ^`.+z L��%r.�,= �'+5n;r3'T.1�.�S�:rc.'•�ri.� �.'.-'r ��,�.ir_,!- �it``�:-'-�;--;�ayy�]�.., .:.' ��.�• _ _. '�..4�•y��•��..�!{� � -
_.. - "Y''A���i`�''•'`�ii l.i.T '� w = '� ..K�, ,��.,'•Y= 1� •.''y `, •'�'rf ��{`+ �`..� i'�r�F�_. •+'�3'ir r ...
3G�3edPhysc�7/t�mical::�iny va -
i a� ;
1LS C�Cdhon incl .deS
Doll sysk r,'
- -, Cede HYhysicaVC h=nicah Any waterpollution •control system th :utliizes a primarRy .
i rbrmicalpr�ss to tICcit� This classifir.�on includes reveae.Omwms,
• - , _. _ -_ = elec�odiaiysis, and upon systems_
**Any water polbaron corz2rol system that ulz7izea.�phy cachanicalProcess ro'enhance as
r.
art edsludge or�ed STo► ,&Process shall nat%7e subject 10 a&EdonW clans tion.
" . ., �, _...-_ '.++:.7�F._-ti ��a�.�:f'-_�. i-"Y'•,r� ;JC;a rrtL .,tom sir,.: 'S.�-h?. i-FiM.+. yE•e?a-•._. rrK .r' :•- - .�r�,++:-•---_. _.. ..
CB6an �SII�SZII�Bce Water po M6n COiItrOI S
1 Systms which fiH -be sue. for $nbs:urfi= emnt and _ ..
disposal of wastewater
andlo�rare�g=edWbavea: d under ANC C &4.1�6
_ Lam.
t
'3'MUfi� system that has'as part of izs treatment process a waterpollution corzirol .
s?'stems That may be Jassy ed- wzderRules _0302T1hrough .0307 of this section shall be
subject.to ad&onal clan on

i
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: sb dge-.Siiaumzm Sl20TQgltai Wa.st �IIC3L�IIL• � PMCCSg
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� � h' 4`� }'j, J .t i .. ..� �''3�'�: y art � - - �� �� ".'�?`�#-�.,..�"Lt''.Ci�.'.t 3�..�-r+ -ti,•� �_.Y�rr't �a�F t ..:� �� - ��t �-.
-�_ '�.'�-poIlntion• �stemprocess- _,.
eaCC1nSIVGly pf the 8d[ on Df dllii 'to drat wd *at +:
.l ^.lr _Fcl; 'j�:.._�.. 1r. ,fyN, •- tec••'.,`�.. �,,iy:--,er:..,.-.�:_'•,x' i • r` t " + 7
.. - .. - .:y,.�••': �;.i.t'' �•i„ ..�.r .�l���J'..ASx��• ems: �'.�+``.. �{u1 a7�.lt�.s-i�� ...,_,i _
- -- -. WF.dy-r_ r r �'R`-'•^•?�`.�%`�'^•{�C�-7t=-�.s`r,..ror. S••- y.y-.� :�'..r� � .:�• _ �-• -'� .
f Collection �ysin -.shall mean' a bus eoanecti ons of pipe�m_ es, cxmdurts, p�Ping ' ..ir vti't:.Gi-Y �-C' •".F. `#1 '�ti• 4-1`r-+•.,+ tL i[:,,r{:'•�„'a:�� ,,,,.. T� �i.
S 3 siafions~; and �7ated used t4 -conddct'wast6#pt=f.6 they" "`--
�.. `k•.;?:: _ _ --' h,.,,.,,�,�� - >vl•'-- .•��.^4=5��i};.t'.'�•,�"-• N.:'a.��'�tiK�i'"�c•1 -ram•' �.+f. W -� �,�- -f�t' �; •'� - - -
'•. wuLL�.11.ti .a'`.�:_ '_ .Y.- ...�-,x sru.au'ns •:;•r,]!. ly..__�,''. ..r'E,�._ '�`�
� - , r ='i. - '�• �t.?� k +-i'7.-_'.3_ro..yrf.•-P _ r� �r,`":trt•; i.' � i '•r�T+'1'-rrur ::.-: Z .,.,r,f. r _. - F"•5•-'^."V--��atirw'-- _ ' -r:
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r
�CC{Tpd1a1ySS �ystem - shall a Systcm �g seleiive
+ - y
a
won of•�ssolvcd sQiids
} c= fl=is based on electrical and &ffbszon Pro cbaige tbron a Se>Mpe�neable membrane.
- � PhysicalProc�,s-shalimcam � pvatcr• � �'' �.-:`.•'.. .:-`- =: -:_ ..
any. pollution•co�ral�ystemProcess:cons;ct;�;a flf : _
S -.. dactiir ;alv�`won; $bsoaPfiam: mr sec hon $aa� and
1 fihCattQnffi$meansD�';r�:�_-••�;::_A,-�..r••_�s;�.'t�=:_`�.M1.t:T:�_.:'.?..-L' "��•- - _' _ . '. . .
r•, n
f Rise Osmosis System = sha1T mean a system which t�7izes Solutions and scmipemable
membranes to separate And tzeat
IIitrafilfraiion System shall mean a system which utilizes a membrane to remove
PDIUa ts� fromwastsw
4' ^.'.,_�i•-•-1��.' -r �_''_'•_... r.�•.�:.:_-%4:,T T•t.+re .i 'P'.-' �_ _•- =— e'»'-,.-...-..+_•' _ _..Yi _ _ - -_ - .
Pater PaIlIIfiva Control System - shallmean aay systemfor the collection; or
Of WaSteWHtet andis wed IIIId4'�le]pTDv lon;Of -is.
3 .yt�r �#e-+ �'+a'L '�i^oY�'k�:.-i-dl•'...._� ��f,T r'�',�.-�-r `y-e-�--.' 1. i,.`:: i�'•t-.`.:' _ _..ly'� �.'d `.t` ..
- � - �...-r-.::cL'r.�r.-.._1'�uJ'.r_t�r1�:+:�+fit-r•_*S.-_'_ ,..r �:-� _ „_i'.." _...:'=� :�-�J--..� :"�_ _ -r _
s : - No 7ale se'reer to 9DA-37fordionaZ ir}orination:d v
ate-