6033_OrbitEnergy_certification_20170906

From: Bruce Hickman <[e-mail]>
Sent: Wednesday, September 6, 2017 3:56 PM
To: Wilson, Donna
Cc: Zack Morgan; Greg Kanellis
Subject: Engineering Certification for Orbit Energy Charlotte
Attachments: Digestate Cert 9-6-17.pdf
Importance: High
Donna,
As we discussed recently, I've attached the engineering certification for the OEC digestate system.
OEC requests that NCDENR schedule the final inspection with Zack Morgan (cc'd above, 980-265-0619) for their
permit to operate as soon as possible. They are currently testing the centrifuges as we discussed and will that
testing will end on September 10. After that time, they will cease digestate handling until they have been
issued the permit to operate. If at all possible, can you please schedule the final inspection within 3 weeks and
issue the PTO immediately thereafter, so that they can manage their digester tank cycle and begin production.
Thank you and please let me know if you have any questions about this submittal or the requested timeline,
Bruce Hickman, PE, Principal Engineer
Hart & Hickman, PC 2923 South Tryon Street, Suite 100 1 Charlotte, NC 28203
Main 704-586-0007 Direct 704-887-4600
www.harthickman.com
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hart hickman
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hart ''`14 hickman
SMARTER ENVIRONMENTAL SOLUTIONS
Via Email and FedEx
[e-mail]
919-707-8255
September 6, 2017
North Carolina Department of Environment
and Natural Resources
1646 Mail Service Center
Raleigh, NC 27699-1646
Attention: Ms. Donna Wilson
Subject: Solid Waste Permit No. 6033-AD-Compost-2015
Food Waste -to -Energy Facility, Orbit Energy Charlotte, LLC
Charlotte, Mecklenburg County, North Carolina
H&H Project No. BLS-002
Dear Ms. Wilson:
Hart & Hickman PC (H&H) is submitting this Engineer's Certification on behalf of Orbit Energy
Charlotte, LLC (OEC) for the referenced permit, pertaining to the food waste -to -energy facility at
600 Johnson Road in Charlotte, North Carolina (Figure 1). As you may recall, an earlier
certification was provided on May 12, 2017 specifically for the as -built construction of the reception
features of the facility. This second certification is being provided to address as -built construction of
the digestate handling portion of the facility. For completeness, the enclosed as-builts also address
reception features of the facility noted in the earlier certification, some of which have been updated
with the current status.
We have attached drawings pertinent to the digestate handling portion of the facility, with as -built
notations to explain notable variances from the drawings submitted with the permit applications
(Revision 0 dated September 25, 2014; Revision 1 dated March 4, 2015; Revision 2 dated March 15,
2015; and Revision 3 correspondence dated May 4, 2015 through September 4, 2015).
Construction of the digestate handling systems is approximately 99% complete at this time of this
certification submittal. Consistent with your concurrence indicated in your August 25, 2017 email,
functional check out of the digestate handling systems by the various equipment manufacturers
began August 28. OEC's engineering team has advised that the necessary mechanical systems,
electrical systems, instruments, controls, and alarm systems will be checked out in a sequence that
assures safety and minimizes the potential for unanticipated odors, releases, etc. during the 7 to 10-
day check out period.
2923 South Tryon Street, Suite 100 3334 Hillsborough Street
Charlotte, NC 28203 Raleigh, NC 27607 www.harthickman.com
704.586.0007 main 1 919.847.4241 main

Ms. Donna Wilson
September 6, 2017
Page 2
The enclosed as-builts depict the digestate handling systems presented in the permit application
submittals referenced above, and as noted in the previously submitted May 12, 2017 as-builts. The
May 12, 2017 reception area certification noted several reception feature enhancements were
underway. Status for these and related enhancements is provided below.
• The reception building truck ramp has been modified to better direct rinse water to the catch
basins at the top of the truck ramp (Photo 1).
Metal skirts have been added to the truck hoppers and pipe bollards have been added at the
top of the loading ramp to ensure the trucks are properly lined up to capture waste being
dumped into the hoppers (Photo 2).
Prior plans to up -size the liquid organic food waste (OFW) tank to 20,000 gallons for
purposes of receiving liquid DAF float and other liquid putrescible OFW have been replaced
with a direct unloading station, which will pump the putrescible liquid directly from the
trucks to the bio-pulper tanks. Construction of this off-loading station is 75% complete and
is comprised of a paved & curbed truck unloading pad, equipped with a drain that flows to
the process water collection system (Photo 3).
• The May 12, 2017 certification noted that the up -sized liquid OFW tank vent will be tied into
the odor control system. Because the original smaller (5,300-gallon) tank is remaining in
service only for non-putrescible liquids and will be drawn down daily, venting to the bio-
pulpers for odor control is not required.
• The elevated digestate dewatering system, comprised of centrifuges in a covered building and
overhead conveyors, has been installed (Photo 4 & 5).
The reception building exhaust system is being enhanced to provide better flow. The
enhancement includes larger ducting to the blower suction, additional distributor lines within
the odor control bed, and a larger exhaust duct from the scrubber tower.
hart hickman
S:\AAA-Master Projects\BlueSphere Corporation (BLS)\BLS-002 Permitting assistance\000 Eng Cert - Digestate Handling - August 2017\Digestate Cert Letter.doc
SMARTER ENVIRONMENTAL SOLUTIONS

Ms. Donna Wilson
September 6, 2017
Page 3
With these qualifiers acknowledged, the required certification is provided below.
Bruce K. Hickman, a North Carolina -registered professional engineer in good standing, has
inspected the constructed digestate handling systems at the referenced Orbit Energy Charlotte
LLC facility, and certifies these features have been substantially constructed as depicted in
enclosed drawings, consistent with as -built notations indicated. As noted on the drawings
and in this letter, several feature enhancements are underway or in planning at the time of this
certification.
If you have any questions or require additional information, please contact me at 704-887-4600 or
[e-mail]. We are also sending two hard copies for delivery next week.
Sincerely,
Hart & Hickman, PC
Bruce Hickman, PE
Principal Engineer
Attachments
Figure 1
As -built drawing mark-ups
Photos
cc: Zack Morgan, Entropy Investment Management, LLC
hart ` hickman
S:\AAA-Master Projects\B1ueSphere Corporation (BLS)\BLS-002 Permitting assistance\000 Eng Cert - Digestate Handling - August 2017\Digestate Cert Letter.doc
SMARTER ENVIRONMENTAL SOLUTIONS

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Photograph 1: Modified truck ramp for better truck rinse -out drainage to the catch basins at the top of the ramp .
Photograph 2: Metals skirts and bollards added to direct waste to hoppers, and new drains also shown.
Ad 2923 S. Tryon Street, Suite 100 ORBIT ENERGY CHARLOTTE
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Photograph 3: Newly constructed DAF truck unloading pad with drain to the process water collection system.
Photograph 4: Elevated dewatering centirifuge building.
2923 S. Tryon Street, Suite'00 ORBIT ENERGY CHARLOTTE
hart 0-*� hickman Charlotte, NC 28203 CHARLOTTE, NORTH CAROLINA
704.586.0007(p)704.586.0373(t7

Photograph 5: Dryer building with elevated centrifuge building and digestate conveyors shown.
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5 -COLD DIGESTER \ \ I \ \ �• \ • I 0
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6 - GASHOLDER re the property J.W. McGinnis,
7 -EMERGENCY TORCHES \ \ \ \ I \ \ / � kr, II � j1 I \ I \ m 1 a�.d Architect. The reproduction or use
8 - BIOGAS WASHING \ \ g >� II. 1 a \ I \ I of this property without the written
9 - COGENERATORS & TRANSFOMERS AREA/�--vtr
I 1 I 1 / \ i 1 c'L o consent of the Architect is prohibited
10- NOT USED q\'• \ 9 / I v >� _ Tao - - \ IIII IIPd 1 1 Q / OI ® \ I I I I��' ❑ I and any infringement of the ownership
11- DRYERS BUILDING \ 1\ \ �\ \ / / / -- - •III 1 / I I I a N R°
12- EQUALISATION TANK subject
rights will be to legal action.
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13- PRE DENRRIFICATION TANK ,\ \ II zB g / /'; / %116 II // 1 v / / I All copies of this drawing must be
14- NITRIFICATION TANK \ \ / , L IIIIII / ©IIII returned to the Architect at the
15- POST DENRRIFlCATION TANK \ ZB N, • J �,/ III _ I I r- V e @�,3{� completion of the contract.
16- DAF \ \ I \� N I \'--------- U2 //jl jl \ (L® 4C •� IIIII
17- CHEMICALS BUILDING Q + \III/'\1 �\ °0 •\ _ 02��/%%%r
18- ELECTRICAL BUILDING -� Z \ \' \ \�
19- REMOVED o- N Z 0 1F `� \\ \ 715
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(Not included in scope of work) (P '\ I \`t \ \\\\\IUZ - -_- LPii ,'-\\ B O I 6 1 Q
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21- CHEMICALS STORAGE TANKS "' Z + I its
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23- TANK FOR RECIRCULATING O 11 1 _ \ / _
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FIELD REVISION
12/31/15
FIELD REVISION
02/01/16
3�
FIELD REVISION
04/IH/16
no.
description
-
Revisions
sw M/Pos coNsrRucr ou eurTER ( Wjid I I `d�/ , / 111 t• \ P ST-C NSTRUCTION I\
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OUR `llr I 301 McCullough Drive
PROP, ROA-CEMwNE Charlotte, North Carolina 28262
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GRADING PLAN J°79 Y
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GENERAL NOTES
D.B. 27948, PG. 822 O 20 40 80
8, PG.
SCALE : 1 = 40 PIN: 1-02AIB
GRADING AND DRAINAGE NOTES:
3. IN ROLLING AND HILLY TERRAINS, SWEEPING OF THE STONE BASE AND/OR
Z85ED:
ZONED.' l-2
1. CATCH BASINS, MANHOLES, FRAMES AND GRATES SHALL MEET THE REQUIREMENTS
APPLICATION OF A TACK COAT MAY BE REQUIRED NEAR INTERSECTIONS. THESE
OF THE LATEST EDITIONS OF THE NORTH CAROLINA DEPARTMENT OF TRANSPORTATION
REQUIREMENTS WILL BE ESTABLISHED BY THE INSPECTOR AND BASED ON FIELD
10. PE SEALED SHOP DRAWINGS FOR RETAINING WALL MUST BE SUBMITTED TO CITY
STANDARD DETAILS FOR CONSTRUCTION.
CONDITIONS.
ENGINEER PRIOR TO CONSTRUCTION.
2. INFORMATION CONCERNING UNDERGROUND UTILITIES WAS OBTAINED FROM AVAILABLE
4. APPROVAL OF THI5 PLAN 15 NOT AN AUTHORIZATION TO GRADE ADJACENT
I I . THE DEVELOPER SHALL MAINTAIN EACH STREAM, CREEK, OR BACKWASH CHANNEL IN AN UNOBSTRUCTED STATE AND SHALL REMOVE FROM
G„
RECORDS AND FIELD LOCATION WHEN POSSIBLE, BUT THE CONTRACTOR MUST DETERMINE
THE EXACT LOCATIONS AND ELEVATION OF ALL EXISTING UTILITIES BY DIGGING TEST PITS
PROPERTIES. WHEN FIELD CONDITIONS WARRANT OFF -SITE GRADING, PERMISSION
MUST BE OBTAINED FROM THE AFFECTED PROPERTY OWNERS.
THE CHANNEL AND BANKS OF THE STREAM ALL DEBRIS, LOGS, TIMBER, JUNK AND OTHER ACCUMULATIONS.
12. ANY CONSTRUCTION OR USE WITHIN THE FUTURE CONDITIONS FLOOD FRINGE LINE 15 SUBJECT TO THE RESTRICTIONS IMP05ED BY THE
Iz^ ANCHORS HNORi�s- CHANNEL
A RC
BY HAND AT ALL CROSSINGS WELL IN ADVANCE OF TRENCHING. IF CLEARANCES ARE
5. IN ORDER TO ENSURE PROPER DRAINAGE, KEEP A MINIMUM OF 0.5% SLOPE ON
FLOODWAY REGULATIONS OF THE CITY OF CHARLOTTE AND MECKLENBURG COUNTY.
LESS THAN SPECIFIED ON PLANS OR TWELVE INCHES (12"), WHICHEVER 15 LESS, CONTACT THE CURB. 13. NON-STANDARD ITEMS (If: PAVERS, IRRIGATION SYSTEMS, ETC.) IN THE RIGHT-OF-WAY REQUIRE A RIGHT-OF-WAY ENCROACHMENT \ _
THE DESIGN ENGINEER PRIOR TO PROCEEDING WITH CONSTRUCTION. 6. SUBSURFACE DRAINAGE FACILITIES MAY BE REQUIRED IN THE STREET RIGHT AGREEMENT WITH THE (CHARLOTTE DEPARTMENT OF TRANSPORTATION/ NORTH CAROLINA DEPARTMENT OF TRANSPORTATION) BEFORE
3. THE CONTRACTOR I5 RESPONSIBLE FOR THE DESIGN AND IMPLEMENTATION OF ALL OF WAY IF DEEMED NECESSARY BY THE INSPECTOR. INSTALLATION. % �j\ j GRADING PLAN
SHEETING, SHORING, BRACING AND SPECIAL EXCAVATION MEASURES REQUIRED TO MEET 7. CURB AND GUTTER SHOWN ON PLANS ALONG JOHNSON ROAD MAY BE 14. CERTIFICATION AND STREET CUT PERMITS ARE REQUIRED FOR UTILITY CUTS ON CITY STREETS. ALLOW 7 DAYS PROCESSING FOR PERMIT. FOR ,\ /\\//\\/ //\ 1 \//\\//\\ \ \
OSHA, FEDERAL, STATE AND LOCAL REGULATIONS PURSUANT TO THE INSTALLATION OF ADJUSTED BASED UPON FIELD STAKING BY CITY ENGINEERING. ASSOCIATED STORM INFORMATION CONTACT CHARLOTTE DEPARTMENT OF TRANSPORTATION (704-336-4025) OR VISIT
ALL WORK INDICATED ON THESE DRAWINGS. THE DESIGN ENGINEER ACCEPTS NO DRAINAGEMAY AL50 REQUIRE MODIFICATION BASED UPON FIELD CONDITIONS. http://www.charmeck.orq/Departments?Transportation/StreetMamtenance,Mome.htm\\//\\//\ h
RESPONSIBILITY FOR THE DESIGNS TO INSTALL SAID ITEMS. 8. THE PURPOSE OF THE STORM DRAINAGE EASEMENT (SIDE) 15 TO PROVIDE STORM CONTROLS ADMINISTRATIVE MANUAL, ALL REQUIRED NATURAL AREAS AND/OR POST CONSTRUCTION CONTROLS EASEMENTS (PCEE's) MUST BE \ \/\\/\\/\\i�\ \ \\/\\/\/\\/\\/\ \\//\ \\��\\�` sheet title
4. WHERE PRECAST DRAINAGE STRUCTURES HAVE BEEN SPECIFIED ON THE PLANS, THE WATER CONVEYANCE. BUILDINGS ARE NOT PERMITTED IN THE EASEMENT AREA. ANY RECORDED PRIOR TO THE ISSUANCE OF THE CERTIFICATE OF OCCUPANCY. //�//` �� //� //\//\//\//\//\// �/` NORTH ANRRICAN GREEN C125
NOTES:\\/-
6.. PLANS CLEARLY INDICATE THAT NO FILL MATERIAL IS TO BE BROUGHT INTO THE BUFFER AND THAT NO STRUCTURES ARE ALLOWED WITHIN i N(
OWNER AND THE ENGINEER ASSUME NO RESPONSIBILITY FOR THESE STRUCTURES, AS FIELD OTHER OBJECTS WHICH IMPEDE STORM WATER FLOW OR SYSTEM MAINTENANCE ARE eoeorvur MATRlx lore EDUAU
CONDITIONS OFTEN DICTATE MINOR ELEVATION ADJUSTMENTS. THE CONTRACTOR ASSUMES ALSO PROHIBITED. ANY OF THE BUFFER AREA5 (EXCEPT NON-COMMERCIAL OUT BUILDINGS NOT EXCEEDING 150 SQUARE FEET). 1.sTAlu No AM ICAN GREEN C125 COCONUT
ALL RESPONSIBILITY AND EXPENSE FOR MODIFYING THE PRECAST STRUCTURES TO 9. HIGH-DEN51TY POLYETHYLENE (HDPE) STORM DRAINAGE PIPE INSTALLED WITHIN 17. GRADING AND OTHER LAND DISTURBING ACTIVITIES ARE ALLOWED ONLY IN THE UPLAND ZONE; HOWEVER, THESE ACTIVITIES MUST BE MATRIX lore ECLAu eR SLOPE VADTH DEPTH TYPE 1406-1
ACCOMMODATE FIELD REVISIONS AND APPROVAL FROM CITY OF CHARLOTTE. EXISTING OR PROPOSED PUBLIC STREET RIGHT-OF-WAY MUST BE APPROVED BY PERFORMED IN SUCH A MANNER AS TO PREVENT DAMAGE TO THE ROOTS OF REMAINING TREES. GRASS OR OTHER SUITABLE GROUND COVER 25EcuRE LORCNUDINAL ANCHORTRENCH AT 12• INTERVALA. 3 : I 5 MIN. 1, FLAT BOTTOM project no. �y
5. THE CONTRACTOR SHALL INCLUDE IN THE CONTRACT PRICE ANY DEWATERING THE CITY'S INSPECTOR PRIOR TO ANY BACKFILL BEING PLACED. BACKFILL MATERIAL CAN BE APPLIED TO THE UPLAND ZONE. OACRF1u ANC coMFAa-IL P 1 -3
NECESSARY TO CONSTRUCT THE PROJECT AS SHOWN ON THE PLANS. MUST BE APPROVED BY THE CITY INSPECTOR PRIOR TO PLACEMENT OF THE 18. THE OUTSIDE BOUNDARY OF THE BUFFER MUST BE CLEARLY MARKED WITH ORAGE FABRIC FENCING PRIOR TO ANY LAND DISTURBING FABRIC LINED DITCH
NOTES MATERIAL WITHIN THE PUBLIC STREET RJGHT-OF-WAY. ACTIVITE5 (GRADING, TREE CUTTING OR STORING, ETC.) AT THE SITE AND THI5 FENCING MUST BE CALLED OUT ON PLAN5. A
19. THE OUTSIDE BOUNDARY OF THE STREAM BUFFER MUST BE PERMANENTLY MARKED WITH AN IRON PIN OR OTHER ACCEPTABLE PROPERTY scA�=Nrs 03/09/15
I. COORDINATE ALL CURB AND STREET GRADES IN INTERSECTION WITH INSPECTOR. CORNER MARKER AT STREET CROSSINGS AND THI5 MARKER MUST BE CALLED OUT ON THE PLANS.
2. 51GIlT TRIANGLES SHOWN ARE THE MINIMUM REQUIRED. date sheet no. 3 Of 18

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