NC0034711_NOV-2020-LV-0619 and 0667 Response_20201009

Metwater, Inc.
1000 Wooddhurst Drive Monroe NC 28110 1704,506,4255
Mr. Corey Basinger
North Carolina Department of Environmental Quality
Division of Water Resources, NCDEQ
610 East Center Avenue, Ste. 301
Mooresville, NC 28115
Ref. NOV-2020-LV-0667 (fecal'
NOV-2020-LV-0619 (Ammonia)
N4001RIF',6V I I'LL, RF(_,10jN A
Cedar Park MHP WWTP
NCO034711
Cabarrus County
Dear Mr. Basinger,
This letter is intended to address the above reference violations at the Cedar Park MHP
WWTP. Its contents and attachments are not to be received as a vehicle to imply any wrong
doing or intentional malice by any party referred to herein,
This facility has routinely produced "less than" fecal results for many years barring the
inevitable system upset or power failure. We have not had to alter our sampling techniques
or protocol, until recently due to this rash of fecal non-compliance. With that in mind, it is
this operators belief that, at least a portion of the sampling bottles during the months of
July through mid -September, were contaminated or at some point became that way prior to
or during sample collection but before analysis.
As your office is aware, this facility and two (2) others like it, concurrently received notices
for the same fecal non-compliance. This is an anomaly I cannot explain. We did however,
perform additional sampling and decided with some certainty that fecal sample bottles,
although still sealed from the vendor but containing a measurable amount of clear liquid,
we not sterile and were not be used for this purpose. I personally noticed this on several
occasions but was assured by our 3rd party laboratory that would not affect the sample
results. It seemed this occurred more so when the sample cooler (containing the fecal
sample bottles) was exposed to rain events and weeklong storage in the bed of a pickup
truck prior to the next sampling event, See attachments I and 2 (pic).
In one phone call to Mr. Scheller, I shared with him the additional sampling data in
attachment 1 and the only viable conclusion that 1 could draw. It is at that tirne, Fie shared

Page 2 of 3 NOV-2020-LV-0667 (fecal) NOV-2020-LV-0619 (Ammoni
Cedar Park MHP WWTPNC.0034711 i
with me a similar experience he had once been through. From that conversation and
advice, we implemented the following:
1. Replaced "old red sampler cooler" that after rinsing and sampled, produced a fecal
concentration of >60,000. Attachment 1
2. Added an additional tablet feeder tube to each chemical dosing unit although we
never needed two (2) before.
3. We still transport the sample cooler in the pickup bed but make sure it is loaded and
stays loaded upside down to prevent rainwater intrusion prior to next sampling
event.
4. Pumped and washed down effluents tanks.
5. "Thoroughly washout all tablet feeder units.
6. Switched to "whirl -pales" for fecal sampling and are experimenting with poles,
dippers and core samplers that sample without interference that may cause
sloughing or otherwise contaminate the sample during collection.
Unfortunately, we are not yet seeing the results at this facility like we are beginning to see
at the other two (2), but we do see an improvement. We are optimistic that will change for
the better once the repairs to the backup blower have been completed and it placed into
operation. At time of this letter and following yesterday's sampling event, the clarity of the
effluent is already improved with the cooler weather despite not having the additional
blower on-line yet.
Your office should be receiving a response letter from the facility owner regarding NOT
2020-LV-0619 (Ammonia). Enclose for your reference is the timeline of April 14, 2020
through September 14, 2020 associated with this violation and the repair of the backup
blower. (See attachment 3) It is now believed, the lack of adequate aeration leading to
partially treated and cloudy effluent allowed fine particles ( i.e.: solids) to "hide" from
chlorination reducing its effectiveness and thereby contributing to the rash of fecal
violation at this one facility.
The owner has approved the blower repair and our mechanical contractor expects to be
completed by months end, barring any delays related to the delivery of parts caused by
Covid 19. (Attachment 4)
Our plan at this time, is to continue working with our client, 3"" party Laboratory and
mechanical contractor to effect the required improvements all around while keeping your
office apprised of our efforts as Metwater has done throughout.
We hope this response is adequate. Should you need any additional information please
contact me directly by calling 704-506-4255 or by emailing [e-mail]

Page 3 of 3 NOV-2020-LV-0667 (fecal) NOV-2020-LV-0619 (Ammonia)
Cedar Park MHP WWTPNCO034711
MINUMMUMMYTE
Thank you for your cooperation and professionalism as always. Should You need additional
information or follow up please contact me directly by calling 704-506-4255 or elylailing
me at drnetwater(5)aoLc(.,.rn.
Sincer
Dusty ketreyeon
Metwater, Inc. ?-
1000 Woodhurst E
Monroe, NC 28110
CC: Robert Scheller (email)
Cedar Park Estates, Rick Obrien (email)
Cedar Park Estates Manager, Mendy Davolt (email)
w/Attachments

Date
Sample
ID#
Location
Test #
Bottle
Results
C/NC/NA
Comments
8-12-20
FC03
Sink
1 of 2
KW dry
<2
N/A
8-12-20
FC01
Sink
2 of 2
KW dry
<2
N/A
8-12-20
FCO2
Toilet
Water
1 of 1
KW dry
<250
N/A
8-12-20
Mpff
1 of 2
KW wet
7800
NC
8-12-20
Wff
2 of 2
MW
<1 �.
C
CV eff.
8-12-20
F10
20eff
1 of 2
KW wet
>600 X
NC
8-12-20
FC05
eff
2 of 2
MWdj47
<2 V
C
SM eff
8-12-20
F11
CP eff
1 of 2
KW wet
<2
C
8-12-20
FC06
CP eff
2 of 2
MW
<2 V
C
CP eff
8-12-20
FC07
oup
1 of 2
KW
>6000
NA
Upstream
8-12-20
F12
Mup
2 of 2
KW
>6000
NA
8-12-20
FC08
Jrdn
1 of 2
KW
>600
NA
Downstream
8-12-20
F13
Mdn
2 of 2
KW
>600
NA
7-23-20
Red cooler
rinse
1 of 1
KW
>60,000
NA
Conclusion; 2 of the 3 bottles (wet) with vious "liquid" in -D�< although still sealed, ;produced heavy
fecal co e d' NOT.
D y Meer, Inc. 70 ' 64255 l
C%�Ctr�men� .2.
Metwater, Inc®
1000 Wbodhtirst Drive
Monroe, N.C. 281i0

Cedar Park Blower Issue Timeline (9-4- 0)
April 2111 Email to manager... issues @ CP. #1 blower is locked up and we need to call contractor. (#2 is the
only blower we have... running continuously)
April 22"d Email manager... response to NOV* and other issues... blower #1 is locked up. We need
mechanical contractor, 2"d request. (*Violation believed to be directly related to a commercial
drain cleaner used earlier in the week to clear stoppages in both skimmer and return sludge lines)
State accepted this explanation.
May NH3asN 11.0, 1.9, 14.0, 6.9. All compliant but erratic and unpredictable.
June NH3asN 31.0, 31.0, 3.0, 5.2. Two of four non -compliant, continues to be erratic and
unpredictable.
July 171h Email to manager... blower #1 locked up. 3.d request for mechanical contractor ...... email —plant
struggling to provide air..." MW provide for filter element replacement for blower #2. New filter
on shelf for #1 when placed into operation.
July 23`d NH3asN 12.0, 7.9, 25.0, 0.29... remains erratic and unpredictable. "Blow-out" found in 4" air
header. MW provide for temporary fix while on site with roll gasket and tape.
July 2411 Temporary repair day before not holding. Advised manager by phone of action taken on 23 d and
action by V party needed immediately. 4th request for mechanical contractor.
July 27th No authorization from owner/manager but MW contract with 3`d party for emergency repairs to
air header and the pulling and TBS of blower/pump #1. Contractor to invoice MW directly.
July 29th MW removed belts from #1 blower in preparation for contractor and tighten belts and align
blower #2 for optimum efficiency.
July 3151 MW provide, by way of 3'd party, temporary repair of air header (4" FC clamp and wrap) and the
pulling of #1 blower/pump .... then wait for owner/manager approval before repairs to
blower/pump.
August 141h MW Email quotes for blower/pump repair and 2 options, either replace entire 4" air header or
replace just the portion that we know has failed. Owner/manager denied.
August 17th Emailed MW invoice for temporary repairs by 3`d party 7-31-20. Left voice mail message for
owner. No response.
August 281h Email manager a summary of compliance... blower issue and waning blower efficiency. Blower #2
has been 2417since April21'
Received email from manager asking if I had a chance to get more quotes. It was my
understanding that the work would not be authorized ...replacement, repair or otherwise ... so I
did not and have not solicited more quotes.
Sept. 2nd Manager email asking for draft response to NOV-2020-LV-0619. Monthly average exceeded.
Sept. 14th Cedar Park approve blower repair
mef, �' 1)

1000 Woodhurst Drive Monroe NC 28110 j 04.506.4255
Hate 6-12-20
Job location / project name: Cedar Park *rP blow repair/replace (URGENT)
Services proposed: Through 3rd party contract services, Metwater herein proposes to ;provide labor and materials for the
execution of services as authorized by owner (Cedar Park) and to oversee all work be completed in a work like and
professional manner according to standard practices. Please choose the desired level of service below anti authori2e by
signature.
Repair existing blower already "pulled" and at repair shop awaiting approval to proceed
OR
Replace with new blower
The initial term of this agreement shall be 30 clays from date of this quote and is contingent upon strikes, accidents, or
delays out of our control.
�/kh
M treyeon weer D to Cedar Pant Estates Date
Metwater, Inc ,
(M-11004110 eft� 4)