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Paj 1
AGENDA
CITY OF DOVER BOARD OF ADJUSTMENT
WEDNESDAY – July 20, 2011 9:00 AM – CITY HALL
ROLL CALL
APPROVAL OF AGENDA
APPROVAL OF MINUTES OF May 18, 2011 MEETING
NEW BUSINESS
Applicant #V-11-06:
889 N. DuPont Hwy, PIP Enterprises, LLC has requested a variance from the requirements of
Article 4 §4.15 of the Zoning Ordinance pertaining to the height of buildings for the C-4 Zone.
Subject property is zoned C-4 (Highway Commercial Zone) and subject to the SWPOZ (Source
Water Protection Overlay Zone) Tier 3 Excellent Recharge Area and the Tax Parcel ID # is
ED05-057.00-01-38.00. The owner of record is PIP Enterprises.
ADJOURN
29 Del.C. § 10004(e)(2)
THE AGENDA ITEMS MAY NOT BE CONSIDERED IN SEQUENCE. THIS AGENDA IS
SUBJECT TO CHANGE TO INCLUDE THE ADDITION OR THE DELETION OF ITEMS,
INCLUDING EXECUTIVE SESSIONS.
Paj 2
CITY OF DOVER
BOARD OF ADJUSTMENT
May 18, 2011
A Regular Meeting of the City of Dover Board of Adjustment was held on Wednesday, May 18,
2011 at 9:00 AM with Chairman Sheth presiding. Members present were, Mr. Sheth, Mr.
Senato, Mr. Keller, and Mr. Hufnal. Colonel Ericson was absent.
Staff members present were Ms. Cornwell, Mr. Albert, Ms. Metsch and Mr. Rodriguez. Also
present was Mr. William F. Holden, Mr. Charles Grimes and Mr. Keith Grimes.
APPROVAL OF AGENDA
Mr. Senato moved to approve the agenda as submitted, seconded by Mr. Hufnal and the motion
was unanimously carried 4-0 with Colonel Ericson absent.
APPROVAL OF THE REGULAR BOARD OF ADJUSTMENT MEETING MINUTES
OF APRIL 20, 2011
Mr. Keller stated that he has submitted to Staff a few typing errors and a word change located
on Pages #4 and #5. Mr. Keller moved to approve the minutes as amended, seconded by Mr.
Senato and the motion was unanimously carried 4-0 with Colonel Ericson absent.
OPENING REMARKS CONCERNING DEVELOPMENT APPLICATIONS
Ms. Cornwell presented to the audience the policies and procedures that would be followed
during these hearings.
Applicant #V-11-04:
640 S. Governors Avenue, Holden Leasing, LLC has requested a variance from the requirements
of Article 4 §4.15 of the Zoning Ordinance pertaining to the front yard set-back for the C-3
Zone.
Subject property is zoned C-3 (Service Commercial Zone) and the Tax Parcel ID #’s are ED05-
077.13-01-40.00 and ED05-077.13-01-41.00. The owner of record is Holden Leasing, LLC.
Representative: Mr. William F. Holden, Property Owner.
Ms. Cornwell provided an overview of the application. Staff submitted for the record the staff
report, architectural elevations, site plan, photographs, and diagrams provided by the applicant.
Ms. Cornwell stated that legal notice was published in the Delaware State News on May 8, 2011,
and the public was notified in accordance with the regulations.
Mr. Sheth questioned if there were any Board members with a conflict of interest and there was
none.
Mr. Holden stated that he does not have a formal presentation to make here this morning. The
facts as presented in the written presentation are what they are. He does need to correct one
inaccuracy. In their opening paragraph under “background” he will provide a short explanation
Paj 3
CITY OF DOVER BOARD OF ADJUSTMENT APRIL 20, 2011
as to why this needs to be corrected. His architect, Gregory Kindig, wrote the first paragraph, I
(Mr. Holden) wrote the second paragraph and then Mr. Kindig wrote the rest of it. He did not
think too much about the fact that the building was not on its original setback line. In 1972 the
showroom which is the north portion of the property, was added to the original structure. About
three (3) weeks ago a customer came up to him and handed him a picture of their gas pumps
which had been taken from the south looking north. He pointed out that it looks like it used to be
a gas station which it probably was. In that photograph, he noted that the showroom was
sticking out approximately five (5) feet further than the original structure was.
Mr. Holden further stated that he emailed Staff to advise of this correction and at that late hour as
it was either May 6th or May 7th, the statement was not corrected for the record. He wanted to
make this clear, if your decisions are based upon the fact that the building was on its original
setback line, it was not. The showroom was added in 1972 and when the renovation to the south
side, which is the service side of the building, was made in the early 80’s, it was moved out to
match the setback on the showroom side. It now sits about two (2) inches over the original
setback line. In 1945 there was no setback line.
Ms. Cornwell stated that the building is still considered legal non-conforming with regards to
setback. Even if it was added onto in 1972, today it would still be considered legal non-
conforming.
Mr. Keller stated on one of the exhibits provided, the new façade and the archway will protrude
approximately one (1) foot two (2) inches is this your understanding? Responding to Mr. Keller,
Mr. Holden stated that yes that is correct. The reason for the extra two (2) inches is that it
requires a foundation. It is the foundation itself that will be one (1) foot two (2) inches.
Mr. Keller further stated for clarification on Mr. Richard Vetter’s survey layout plan, it does
appear as though there is an encroachment into the existing setback line of approximately 6/10 of
a foot. Is this what Staff is also stating? Responding to Mr. Keller, Ms. Cornwell stated that yes;
there is an existing encroachment into the front yard setback. The variance would be for an
additional one (1) foot two (2) inches.
Mr. Keller further questioned with regards to the exhibit for façade renovations, there is an
engineering note “due to existing setback limitations, arch to be attached to existing building
façade with minimal stand-off.” Is this an alternative plan if your application plan for a variance
would be denied? Would it be put on the face of the existing façade and not have the one (1)
foot two (2) inch protrusion? Responding to Mr. Keller, Mr. Holden stated when the
architectural rendering was done there was no consideration for not having it protrude. When he
talked to Staff, he asked the architect if there were any flush alternatives. We have not done any
formal architectural drawings of the flush alternative. His comment to Staff and to the architect
is that any effort to make it appear that it is a standalone arch i.e., mounting it flush to the
building is obviously going to be faux. This arch in and of it itself is going to cost $50,000. He
does not want to spend $50,000 on something that would be aesthetically much worse looking
than having it protrude. He has an architectural sketch of what he suggests we could possibly do
and it obviously looks faux.
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CITY OF DOVER BOARD OF ADJUSTMENT APRIL 20, 2011
Mr. Keller further stated that regarding your current term agreement with Chrysler Corporation,
how long is the term agreement? Responding to Mr. Keller, Mr. Holden stated that he did not
want to cloud this request with a lot of legalese. He has all the term agreements in writing and
can provide them if you need them at a later time. A term agreement is an agreement that is
worked out between myself, the franchisee and the franchisor. The length of time all depends on
how long it will take to do all the things necessary to meet the standards that Chrysler requires in
this case. His term agreement expires January 1, 2012. The term agreement started in July 2009
so he has had two and a half years. In the process, we have been diligently searching for a
property to move to. We found a couple of properties; however, financially the numbers just do
not seem to work. He cannot push this back any further with Chrysler.
Mr. Senato questioned what the impact would be if this was not granted regarding the arch and
effect on the business? Responding to Mr. Senato, Mr. Holden stated that he has not approached
Chrysler on what their reaction would be to having to install a flush arch. He has talked to their
dealer standards people. There are two separate issues since you asked a business question. Our
manufacturer has a set of dealer standard requirements one of which is having the millennium
arch as presented in the architectural drawings and the Chrysler design intent drawings. They
have a graded scale that takes in a number of issues; how we treat our customers, how we
follow-up, how we make appointments, and how we communicate our facility as far as its
capacity. On the business side of it, we can earn as much as $50,000 a quarter if we meet those
standards. If he does not install the millennium arch as it is presented, it does not meet dealer
standards.
Mr. Sheth opened a public hearing and after seeing no one wishing to speak closed the public
hearing.
Mr. Sheth questioned if there was any correspondence received for this application and there
was none.
Mr. Senato moved to approve Applicant #V-11-04 located at 640 S. Governors Avenue, Holden
Leasing, LLC for the arch as he feels that the applicant has demonstrated Exceptional Practical
Difficulty due to the fact that the building encroaches into the front yard setback and is required
by Chrysler, for the franchise, to have that type of arch.
Mr. Hufnal stated that he would like to add to the motion that Staff has already agreed that the
existing building is considered legal non-conforming and it currently already encroaches into
the front yard setback. The additional fourteen (14) inches into the front yard would not impact
surrounding uses and would not be noticeable to surrounding properties. The motion was
seconded by Mr. Hufnal with this addition and the motion was unanimously carried 4-0 with
Colonel Ericson absent.
Applicant #V-11-05:
29 S. West Street, Grimes Family Limited Partnership has requested a variance from the
requirements of Article 5 §4.7 of the Zoning Ordinance pertaining to the size of permitted
signage.
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CITY OF DOVER BOARD OF ADJUSTMENT APRIL 20, 2011
Subject property is zoned C-2A (Limited Central Commercial Zone) and the Tax Parcel ID # is
ED05-076.08-06-05.00. The owner of record is Grimes Family Limited Partnership.
Representatives: Mr. Charles Grimes and Mr. Keith Grimes, Property Owners.
Ms. Cornwell provided an overview of the application. Staff submitted for the record the staff
report, application, and photographs.
Ms. Cornwell stated that legal notice was published in the Delaware State News on May 8, 2011,
and the public was notified in accordance with the regulations.
Mr. Sheth questioned if there were any Board members with a conflict of interest and there was
none.
Mr. Charles Grimes stated their big problem is where they are located. He understands that
Downtown Loockerman Street, thirty-two (32) square feet is a lot of signage; however, they are
in the middle of nowhere. They have the railroad tracks and a storage garage across from them
and a junk yard located across the street. Their front door to Loockerman Street is 492 feet.
From our front door to Division Street is 429 feet. From that distance, of one and a half football
field length, if cars are coming down Division or Loockerman Street and this is our attraction,
are they going to be able to see a sign that is fifteen (15) inches high from one and a half football
field distance away?
Mr. Charles Grimes further stated that he has a drawing that they just received from the canopy
contractor to put a canopy up. That was passed out at this time and submitted into the record.
NAPA’s theme across the United States is the pipeline of the automotive business and the yellow
that you see on the drawing is nothing more than a pipeline that is lit up. We do not feel that
with what is in front of us that we should be concerned about the public or that it is a bad or ugly
sign. We just do not feel that anyone can see it. We were told that we could put up a monument
sign that would be big enough; however, the problem would be that we do not feel that you
would be able to see it if you are coming down Division or Loockerman Street. By the time you
see this sign, you would already be across the railroad tracks and into Dover.
Mr. Keith Grimes stated that the building is 160 feet long. The first sign that we have is within
requirements. We feel that the sign will get lost in such a large building. This is the size of the
sign that we would like to put up as we do not feel that this is a huge sign. We just want to
capture as much business as we can, especially with the move.
Mr. Sheth questioned how big the sign would be? Responding to Mr. Sheth, Mr. Charles Grimes
stated that if you would include the yellow lighted sign it would be sixty-four (64) square feet.
More than half of the sign is the yellow pipeline and red streak.
Ms. Cornwell stated that when she met with Mr. Charles Grimes in previous discussions Staff
was not including the yellow pipeline as part of the signage. They were just going with the
NAPA and then everything that says auto parts. Responding to Ms. Cornwell, Mr. Keith Grimes
stated that in an email from Ms. Cornwell she had provided, excluding the yellow pipeline, the
square footage which would be forty-seven (47) square feet.
4
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CITY OF DOVER BOARD OF ADJUSTMENT APRIL 20, 2011
Mr. Keller questioned to clarify the photograph that was just passed around it depicts the south
end of the building, is this correct? Responding to Mr. Keller, Mr. Charles Grimes stated that the
picture faces the west towards the railroad tracks.
Mr. Keller further stated that he has a depiction similar to the posted exhibit on a demonstration
board that shows signage over what appears to be a front door entryway then a depiction of what
he presumes is a monument sign. What, if any, existing signs are already up and established on
the building? Responding to Mr. Keller, Mr. Charles Grimes stated that there is a sign over the
entryway. This demonstration is only proposed signage there is none up now or currently in
place.
Mr. Hufnal questioned if they would also be putting up a monument sign? Responding to Mr.
Hufnal, Mr. Charles Grimes stated that no, they would not. They feel that with a monument
sign by the time you see it, you are already at West Street so you would have missed it. The
main signage is right over the front door.
Also responding to Mr. Hufnal, Mr. Keith Grimes stated that they were worried about putting the
monument sign up because it would get damaged in this area that they are moving to.
Mr. Keller questioned Staff if the applicant foregoes a monument sign and would agree to forego
that option as an alternative; does that change in any respect the allowable square footage on a
wall sign? Responding to Mr. Keller, Ms. Cornwell stated that no it does not in this application;
however, it could be something that this Board could consider.
Ms. Cornwell stated for clarification the permitted area for a sign is sixteen (16) square feet.
When Staff originally met with the applicant, she originally stated thirty-two (32) square feet;
however, upon further review and discussion with the Planning Director, it was determined that
there is a house next door. The Code reads if there is a house with frontage within 200 feet on
the same street which means that it is adjacent to residential; the overall sign area comes down to
sixteen (16) feet. What they first submitted to Staff was a fifty-two (52) square foot sign and
then they did submit that they had a twenty-eight (28) square foot sign for the wall sign. Neither
would meet Code of sixteen (16) square feet.
Mr. Hufnal stated that he knows our Codes are designed to protect neighbors and neighboring
properties; however, in this particular case, he knows where the building is and you cannot build
anything across the road because it is along a railroad track and no one is going to see this unless
you are going to be going down that street or you see it from a distance. A sixteen (16) square
feet sign from 500 feet away is very difficult to see. You had originally requested fifty-six (56)
square feet and now you are saying that it is forty-seven (47) square feet so that is reduced
somewhat from your original request. If you do not put up the monument sign and you just go
with the one sign, he feels because it is a lightly travelled street anyway and without anyone
noticing where you are, they do need bigger signage.
Mr. Keller questioned how Mr. Grimes as the applicant would feel as a condition to the variance
request that any future right to a monument sign would be waived if the variance was approved
otherwise for a larger wall sign? Responding to Mr. Keller, Mr. Keith Grimes stated that they do
not want to put up a monument sign because it would sustain physical damage. They are also
5
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CITY OF DOVER BOARD OF ADJUSTMENT APRIL 20, 2011
afraid of where the parking lot is located someone would back out into it as they get a lot of
traffic that comes in with trailers hooked to them.
Mr. Keller further stated that if the variance is granted in whatever fashion and with whatever
conditions would run with the land. In any event, if this were to be a condition that the
subsequent owner could not erect a monument sign as well, would this create a problem?
Responding to Mr. Keller, Mr. Charles Grimes stated that this would not create a problem.
Mr. Sheth questioned if the Downtown Dover Development Corporation has expressed any
opinion one way or the other? Responding to Mr. Sheth, Ms. Cornwell stated that she does
believe that the Planning Director did inform the Downtown Dover Partnership that there was a
variance application for signage for the property. They are kept aware of all applications that
come before any Board within the City. This was just an informational item for them.
Mr. Hufnal questioned if they have had any negative correspondence from anyone? Responding
to Mr. Hufnal, Ms. Cornwell stated that there has been no correspondence regarding this
application.
Mr. Sheth opened a public hearing and after seeing no one wishing to speak closed the public
hearing.
Mr. Sheth questioned if there was any correspondence received for this application and there
was none.
Mr. Senato moved to approve Application #V-11-05 located at 29 S. West Street, Grimes Family
Limited Partnership for a forty-seven (47) square foot sign as they have demonstrated based on
location in their discussion with this Board that they have Exceptional Practical Difficulty in that
area with the sign and that the applicant will waive future rights to erect a monument sign,
seconded by Mr. Hufnal and the motion unanimously carried 4-0 with Colonel Ericson absent.
Mr. Keller stated that with the testimony given and exhibits presented, he is not in total
agreement that there is a demonstrated Exceptional Practical Difficulty. Likes and dislikes of
location often times represent routine difficulties as opposed to an exceptional one. There are
means and methods of vision for that building. The building in itself is of a size and nature in
color that is an eye catching feature as you are traveling easterly on Loockerman or Division
Street. Otherwise, he would agree that granting of the variance would represent minimal impact
to surrounding properties. He would also state that with the imposition of the waiver of a future
monument sign that fairness is exhibited.
Mr. Hufnal moved to adjourn the meeting, seconded by Mr. Senato and the motion was
unanimously carried 4-0 with Colonel Ericson absent.
Meeting adjourned at 9:42 AM
6
Paj 8
CITY OF DOVER BOARD OF ADJUSTMENT APRIL 20, 2011
Sincerely,
Diane Metsch
Secretary
7
Paj 9
City of Dover
Board of Adjustment
July 20, 2011
V-11-06
Location: 889 North DuPont Highway
Applicant: Cellco Partnership
Owner: PIP Enterprises, LLC
Tax Parcel: ED-05-057.00-01-38.00-000
Application Date: June 17, 2011
Present Zoning: C-4 (Highway Commercial Zone)
Present Use: Restaurant and retail store
Reviewed By: Janelle M. Cornwell, AICP
Variance Type: Area Variance
Variance Requested: Allow a structure to exceed the maximum height of 45
feet. Allow for an additional 31 feet in height.
Project Description:
The applicant is requesting a variance from the Zoning Ordinance of Article 4 Section 4.15
Zoning Bulk and Parking Regulations. Specifically, they are requesting a variance to allow a
structure to exceed the maximum height requirement by 31 feet for an overall height of 76
feet. The proposal is for a 70-foot cellular tower that has a six foot lightening rod attached
to the top for a total height of 76 feet. The antenna will also exceed the 70-foot tower
height.
Adjacent Land Uses
The adjacent properties are a mixture of commercial uses. The properties to the north and
south are zoned C-4 (Highway Commercial Zone) and subject to the SWPOZ (Source Water
Protection Overlay Zone). The properties to the east across North DuPont Highway are
zoned IO (Institutional/Office Zone) and SC-2 (Neighborhood Shopping Center Zone) and
subject to the SWPOZ (Source Water Protection Overlay Zone). The properties to the west
Paj 10
V-11-06 Lands of PIP Enterprises and Cellco Partnership at 889 N. DuPont Hwy.
Board of Adjustment Report
Page 2 of 5
are zoned RC (Recreational and Commercial Zone) and subject to the SWPOZ (Source
Water Protection Overlay Zone).
Code Citation
Article 4 Section 4.15
Bulk and parking regulations for highway commercial (C-4), [are as follows]:
C-4
Minimum required:
Lot area
Lot width (ft.) 150
Lot depth (ft.) 150
Front yard (ft.) 30
Side yard (ft.) 25
Rear yard (ft.) 10 or equal to
building height
Side or rear yards which adjoin a residence 30
zone (ft.)
Off-street parking
Per 300 sq. ft. floor area or 1½
Per employee (whichever is greater) 1
Maximum permitted:
Building height
Stories 4
Feet 45
Floor area ratio 2.0
Lot coverage 2.0
Lot coverage
Exceptional Practical Difficulties Tests
Article 9, §2 dictates the specific powers and duties of the Board of Adjustment with regard
to granting variances. In order to grant a variance the Board must determine in that
exceptional practical difficulties exists.
Specifically the Board must determine:
2.1 Variance – The board shall have the authority to authorize variances from provisions of
the zoning ordinance that are not contrary to public interest where the board determines
that a literal interpretation of the zoning ordinance would result in undue hardship or
exceptional practical difficulties to the applicant. In granting variances, the board shall
determine that the spirit of the zoning ordinance is observed and substantial justice done.
2.11 Area Variance. A variance shall be considered an area variance if it relates to bulk
standards, signage regulations, and other provisions of the zoning ordinance that address
Paj 11
V-11-06 Lands of PIP Enterprises and Cellco Partnership at 889 N. DuPont Hwy.
Board of Adjustment Report
Page 3 of 5
lot layout, buffers, and dimensions. In considering a request for an area variance, the board
shall evaluate the following criteria and document them in their findings of fact:
(a) the nature of the zone in which the property lies;
(b) the character of the immediate vicinity and the contained uses therein;
(c) whether, if the restriction upon the applicant’s property were removed, such
removal would seriously affect neighboring properties and uses; and
(d) whether, if the restriction is not removed, the restriction would create
unnecessary hardship or exceptional practical difficulty for the owner in his efforts
to make normal improvements in the character of that use of the property that is a
permitted use under the provisions of the zoning ordinance.
1. The nature of the zone in which the property lies.
Applicant Responses:
The subject property lies within the C-4 (“Highway Commercial”) zone. This zone
permits a wide variety of significant commercial uses including, but not limited to,
drive-in facilities, motels and restaurants, outdoor recreation facilities, theaters, and
household moving and other storage operations. Commercial telecommunication
towers are permitted in the C-4 zone subject (unless a variance is needed) only to
administrative site plan approval, thus the proposed installation is consistent with
the nature of the zone.
Staff Response:
The site is located within a commercial area of the city. There are commercial uses
in the immediate vicinity of the site.
2. The character of the immediate vicinity and the contained uses therein.
Applicant Responses:
The subject property is located on Route 13 in the middle of an expansive, 6-lane
stretch of commercial properties. The subject property contains J.D. Shuckers
Restaurant, as well as a small 40-45 foot tall cellular monopole, and is bordered by
Delaware State University to the west, strip shopping centers to the north, Home
Depot, Dover Downs and the race track to the east, and additional commercial
business to the south. A number of these sites contain tall structures such as signs,
stadiums, light poles, bleaches for Dover Downs as well as the hotels itself such that
a 75 foot tall monopole would not be out of character with what surrounds the
property in this highly commercial area.
Staff Response:
The character of the vicinity is mixture of commercial, retail, and recreational uses.
There are a number of buildings and structures (Dover Downs Hotel and Casino and
the Racetrack) within the immediate vicinity that are over 45 feet in height. Some of
these uses are zoned differently which allows for the different height limits.
3. Whether, if the restriction upon the applicant’s property were removed, such
removal would seriously affect neighboring properties and uses.
Applicant Responses:
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V-11-06 Lands of PIP Enterprises and Cellco Partnership at 889 N. DuPont Hwy.
Board of Adjustment Report
Page 4 of 5
The applicant believes that the granting of this application would have no adverse
impact of surrounding properties or uses. As the Board is likely aware, these
installations take up minimal space. In this instance, the proposed installation is
located at the rear of a developed commercial site with a background of taller
structures behind it. As the attached photographs show, the area is decidedly
commercial, with a number of buildings, light poles, signs and other structures in
the area. The addition of a single, 70’ monopole, roughly 3 feet in diameter (with six
foot lightening rod at the top) will not be out of character with the area nor will it
detract from the uses that currently are located in this area. In addition, this
installation will serve to improve the quality of Verizon Wireless’s coverage in this
area by assisting in resolving current capacity shortfalls that exist in this heavily
travelled area of Dover.
Staff Response:
The additional 31 feet in height would not impact surrounding uses. While the
height would be noticeable there are other uses that are over 45 feet in the area.
The location of the proposed cellular tower is at the back of the property next to an
existing cellular tower with no impact on properties or uses.
4. Whether, if the restriction is not removed, the restriction would create unnecessary
hardship or exceptional practical difficulty for the owner in his efforts to make
normal improvements in the character of that use of the property that is a permitted
use under the provisions of the zoning ordinance.
Applicant Responses:
The application is being pursued due to existing capacity concerns within Verizon
Wireless’s network. Previously, these concerns only manifested themselves during
the race weekends at Dover Downs and they could be addressed through temporary
facilities. These usage concerns, which result not only from cell phone calls but the
increased use of text messaging, email and downloading capabilities provided by an
expected from today’s smartphones, have now risen to the extent that they are no
longer just present on race weekends and can no longer be corrected through the
use of temporary facilities. The radio frequency spectrum licensed to Verizon
Wireless by the FCC is exhausted. To handle these issues, new sites are necessary to
provide additional capacity for new and existing customers. Verizon Wireless has
investigated whether the tower could work at 45 feet and determined that it simply
will not provide the necessary offloading at any height less than 70 feet. If forced to
maintain 45 feet in height, the required coverage footprint for offloading could not
be met and the facility could not serve its intended purpose. Indeed, most of the
Verizon Wireless locations in the area are established at 100 feet or higher.
Staff Response:
The denial of the variance requested would create an exceptional practical difficulty
as this area is near capacity and will run out of capacity by the end of 2011, this
could impact the quality of service and the ability to provide adequate service by the
company limiting the normal improvements in the character of the use of the
property. The denial of the variance could also create outages and interruptions for
Verizon Wireless customers in the area that would also be an exceptional practical
Paj 13
V-11-06 Lands of PIP Enterprises and Cellco Partnership at 889 N. DuPont Hwy.
Board of Adjustment Report
Page 5 of 5
difficulty as the company would be unable to do adequate business in the area. (As
stated in the Radio Frequency Design Analysis Report)
Variance Recommendations:
Staff recommends approval of the area variance for reasons as follows:
• The applicant has demonstrated exceptional practical difficulty as a shorter cellular
tower would limit the company’s ability to “compete” with other similar companies,
and it could impact the quality of the services provided.
• The variance would be in keeping with the character of the neighborhood as there
are other structures within the neighborhood that are taller than the proposed
cellular tower.
• The placement of a cellular tower is in keeping with the zone in which it is located as
there is another cellular tower located on the property. Staff notes this tower is
owned by a different telecommunications company.
Paj 14
________________________________________________________________________
PO Box 165
Fairview Village, PA 19409
Phone: 610.304.2024
Fax: 610.584.5387
info@dBmEng.com
June 16, 2011
Claire DiNardo
Arionda, LLC
209 N. Haddon Avenue
Haddonfield, NJ 08033
Subject: Electromagnetic Emissions Analysis
“DOV - TOLSON”
889 Dupont Highway
Dover, DE 19901
Latitude: N 39º 11’ 02.1”
Longitude: W 75º 31’ 52.2”
Ground Elevation: 31.5’ AMSL
Ms. DiNardo:
I have received and executed your request that I perform an independent evaluation and
certification of the anticipated radio-frequency emission levels for the Verizon Wireless
telecommunications facility upgrade proposed at the above referenced coordinates. The intention
of this study is to verify compliance with Federal Communications Commission (hereafter
“FCC”) guidelines for human exposure limits to radio-frequency electromagnetic fields as per
FCC Code of Federal Regulation 47 CFR 1.1307 and 1.1310. As a registered Professional
Engineer, I am bound by a code of ethics to hold paramount the safety, health, and welfare of the
public. All statements and calculations offered herein are made in an objective and truthful
manner pursuant to that code.
Summary of Findings
The maximum exposure to radio-frequency emissions from the proposed Verizon
Wireless and the existing AT&T facility immediately adjacent will be far below FCC
exposure limits. Using upper limit assumptions for the Verizon Wireless and AT&T
equipment configurations, the cumulative radio-frequency exposure levels would be
at least seventy (70) times less than the FCC limits at all locations of public access.
The following chart (Figure-1) specifically illustrates anticipated exposure levels for a
variety of scenarios. All exposure limits have been calculated using the methods
prescribed in FCC Office of Engineering and Technology (OET) Bulletin 65 “Evaluating
Compliance with FCC Guidelines for Human Exposure to Radio-frequency
Electromagnetic Fields”. These upper-limit conditions include maximum traffic loading,
significant subscriber growth, six degrees of main beam down-tilt, and 100% constructive
interference from ground reflection. Additionally, signal attenuation due to
environmental clutter such as buildings, trees, and roadways has been ignored which will
Paj 15
overestimate actual power densities. Also worth mentioning is the fact that the FCC
exposure limits already include a significant margin of safety. Continuous exposure at
100% of FCC limit is considered by the scientific community to be just as safe as
continuous exposure at 1% of FCC limit.
Cumulative % of FCC limit
Maximum Power Density μW/cm2
% of FCC Limit
(micro-watts per square centimeter )
Height
Horizontal
Above
Distance from
Ground
across all bands
Facility (Ft.)
(Ft.)
90 700 850 1900 2100 2600 90 700 850 1900 2100 2600
MHz MHz MHz MHz MHz MHz MHz MHz MHz MHz MHz MHz
0 6 N/A < 0.9 < 2.9 < 5.8 N/A N/A N/A < 0.18 < 0.51 < 0.58 N/A N/A < 1.27
100 6 N/A < 0.4 < 1.4 < 2.8 N/A N/A N/A < 0.09 < 0.25 < 0.28 N/A N/A < 0.62
200 6 N/A < 0.2 < 0.4 < 0.8 N/A N/A N/A < 0.03 < 0.07 < 0.08 N/A N/A < 0.18
1320 (1/4 mi.) 6 N/A < 0.1 < 0.1 < 0.1 N/A N/A N/A < 0.01 < 0.01 < 0.01 N/A N/A < 0.03
FCC Exposure Limits
200 467 567 1000 1000 1000
for General μW/cm2 μW/cm2 μW/cm2 μW/cm2 μW/cm2 μW/cm2
Population
Figure-1 – calculated exposure levels near the proposed telecommunications facility
Applicability of the National Telecommunications Act of 1996
This Act states that “no state or local government or instrumentality thereof may regulate
the placement, construction, and modification of personal wireless service facilities on
the basis of the environmental effects of radio-frequency emissions to the extent that such
facilities comply with the (Federal Communications) Commission’s regulations
concerning such emissions”. As indicated above, this proposed facility will be in full
compliance with the FCC’s emissions standards and as such is beyond regulation in that
regard.
________________________________________________________________________
PO Box 165
Fairview Village, PA 19409
Phone: 610.304.2024
Fax: 610.584.5387
info@dBmEng.com
Page 2 of 7
Paj 16
Technical Parameters of Consideration
The above calculations were based on the equipment configuration information furnished
by representatives of Verizon Wireless. Specifically for this installation, Verizon
Wireless plans to install panel style antennas arranged in three sectors with azimuths
evenly spaced in the horizontal plane with respect to true north. The antenna centerline
height above ground level is planned at 70’. Transmitting through these antennas will be
up to four (4) CDMA radios in the 850 MHz band (per sector) at a maximum of 100
watts ERP (effective radiated power) per radio, up to four (4) CDMA radios in the 1900
MHz band (per sector) at a maximum of 100 watts ERP (effective radiated power) per
radio and one (1) LTE radio in the 700 MHz band (per sector) at a maximum of 100 watts
ERP (effective radiated power) per radio. Currently transmitting through the AT&T
antennas installed (on the 45’ wood pole immediately adjacent to the proposed) at an
antenna centerline of 43’ are a maximum of one (1) LTE radio in the 700 MHz band at a
maximum of 100 watts ERP per radio, eight (8) GSM radios in the 850 MHz band at a
maximum of 100 watts ERP per radio, a maximum of two (2) UMTS radio in the 850
MHz band at a maximum of 100 watts ERP per radio, a maximum of eight (8) GSM
radios in the 1900 MHz band at a maximum of 100 watts ERP per radio and a maximum
of two (2) UMTS radios in the 1900 MHz band at a maximum of 100 watts ERP per
radio.
________________________________________________________________________
PO Box 165
Fairview Village, PA 19409
Phone: 610.304.2024
Fax: 610.584.5387
info@dBmEng.com
Page 3 of 7
Paj 17
Co-location of Other Wireless Providers
In an attempt to halt the proliferation of telecommunications structures and preserve as
much of their natural landscape as possible many municipalities have adopted
telecommunications ordinances that specifically require structures to accommodate
additional wireless providers from a structural standpoint. From the standpoint of
radio-frequency exposure, the installation of the proposed Verizon Wireless equipment
would in no way preclude the use of this facility by other providers.
Background Information
In 1985, the FCC first adopted guidelines to be used for evaluating human exposure to
RF emissions. The FCC revised and updated these guidelines on August 1, 1996, as a
result of a rule-making proceeding initiated in 1993. The new guidelines incorporate
limits for Maximum Permissible Exposure (MPE) in terms of electric and magnetic field
strength and power density for transmitters operating at frequencies between 300 kHz and
100 GHz.
The FCC's MPE limits are based on exposure limits recommended by the National
Council on Radiation Protection and Measurements (NCRP) and, over a wide range of
frequencies, the exposure limits were developed by the Institute of Electrical and
Electronics Engineers, Inc., (IEEE) and adopted by the American National Standards
Institute (ANSI) to replace the 1982 ANSI guidelines. Limits for localized absorption are
based on recommendations of both ANSI/IEEE and NCRP.
The FCC's limits, and the NCRP and ANSI/IEEE limits on which they are based, are
derived from exposure criteria quantified in terms of specific absorption rate (SAR). The
basis for these limits is a whole-body averaged SAR threshold level of 4 watts per
kilogram (4 W/kg), as averaged over the entire mass of the body, above which expert
organizations have determined that potentially hazardous exposures may occur. The
MPE limits are derived by incorporating safety factors that lead, in some cases, to limits
that are more conservative than the limits originally adopted by the FCC in 1985. Where
more conservative limits exist, they do not arise from a fundamental change in the RF
safety criteria for whole-body averaged SAR, but from a precautionary desire to protect
subgroups of the general population who, potentially, may be more at risk.
The FCC exposure limits are also based on data showing that the human body absorbs RF
energy at some frequencies more efficiently than at others. The most restrictive limits
occur in the frequency range of 30-300 MHz where whole-body absorption of RF energy
by human beings is most efficient. At other frequencies, whole-body absorption is less
efficient, and consequently, the MPE limits are less restrictive.
MPE limits are defined in terms of power density (units of milliwatts per centimeter
squared: mW/cm2), electric field strength (units of volts per meter: V/m) and magnetic
________________________________________________________________________
PO Box 165
Fairview Village, PA 19409
Phone: 610.304.2024
Fax: 610.584.5387
info@dBmEng.com
Page 4 of 7
Paj 18
field strength (units of amperes per meter: A/m). The far-field of a transmitting antenna
is where the electric field vector (E), the magnetic field vector (H), and the direction of
propagation can be considered to be all mutually orthogonal ("plane-wave" conditions).
Occupational / controlled exposure limits apply to situations in which persons are
exposed as a consequence of their employment and in which those persons who are
exposed have been made fully aware of the potential for exposure and can exercise
control over their exposure. Occupational/controlled exposure limits also apply where
exposure is of a transient nature as a result of incidental passage through a location where
exposure levels may be above general population/uncontrolled limits, as long as the
exposed person has been made fully aware of the potential for exposure and can exercise
control over his or her exposure by leaving the area or by some other appropriate means.
General population / uncontrolled exposure limits apply to situations in which the general
public may be exposed or in which persons who are exposed as a consequence of their
employment may not be made fully aware of the potential for exposure or cannot exercise
control over their exposure. Therefore, members of the general public would always be
considered under this category when exposure is not employment-related, for example, in
the case of a telecommunications tower that exposes persons in a nearby residential area.
In the case of this study, the general population exposure limits have been applied as
they are the more conservative set of standards.
________________________________________________________________________
PO Box 165
Fairview Village, PA 19409
Phone: 610.304.2024
Fax: 610.584.5387
info@dBmEng.com
Page 5 of 7
Paj 19
Additional Remarks
The radio-frequency emission levels from Verizon Wireless and other PCS and Cellular
communications base stations are similar to that of other two-way communications
systems like those used by police, fire and ambulance personnel. In contrast, commercial
broadcast systems like television and radio often transmit at power levels ten times
greater or more than the systems discussed above.
The biological effects on humans of non-ionizing radio-frequency exposure have been
studied extensively now for decades. There have been thousands of reports produced by
government agencies, universities, and private research groups that support the standards
adopted by the FCC. To date, there have been no credible studies conducted whose
results showed evidence of any adverse health effects at the above exposure limits.
Sincerely,
Andrew M. Petersohn, P.E.
Registered Professional Engineer
Delaware license number 14438
________________________________________________________________________
PO Box 165
Fairview Village, PA 19409
Phone: 610.304.2024
Fax: 610.584.5387
info@dBmEng.com
Page 6 of 7
Paj 20
DECLARATION OF ENGINEER
Andrew M. Petersohn, P.E., hereby states that he is a graduate telecommunications
consulting engineer possessing Master and Bachelor Degrees in Electrical Engineering
from Lehigh University (2005 and 1999, respectively). His corporation, dBm
Engineering, P.C., has been retained by representatives of Verizon Wireless to perform
an electromagnetic emissions analysis for a proposed telecommunications facility.
Mr. Petersohn also asserts that the calculations and/or measurements described in this
report were made personally and in a truthful and objective manner. Mr. Petersohn is a
Registered Professional Engineer licensed in Pennsylvania, Delaware, Maryland,
Virginia, New York and Florida with pending reciprocity in New Jersey. He has over a
decade of engineering experience in the field of wireless communications. Mr. Petersohn
is an active member of the National Society of Professional Engineers (NSPE) and the
Institute of Electronic and Electrical Engineers (IEEE). Mr. Petersohn further states that
all facts and statements contained in the foregoing document are true and accurate to the
best of his knowledge. He believes, under penalty of perjury, the foregoing to be correct.
Andrew M. Petersohn, P.E.
Registered Professional Engineer
Delaware license number 14438
Executed this the 16th day of June, 2011.
________________________________________________________________________
PO Box 165
Fairview Village, PA 19409
Phone: 610.304.2024
Fax: 610.584.5387
info@dBmEng.com
Page 7 of 7
Paj 21
________________________________________________________________________
PO Box 165
Fairview Village, PA 19409
Phone: 610.304.2024
Fax: 610.584.5387
info@dBmEng.com
June 16, 2011
Claire DiNardo
Arionda, LLC
209 N. Haddon Avenue
Haddonfield, NJ 08033
Subject: FAA Screening
Proposed Telecommunications Facility:
“DOV - TOLSON”
889 Dupont Highway
Dover, DE 19901
Latitude: N 39º 11’ 02.1”
Longitude: W 75º 31’ 52.2”
Ground Elevation: 31.5’ AMSL
Ms. DiNardo:
I have received and executed the request that I perform an independent screening analysis of the
proposed seventy (70’) foot telecommunications facility at the above referenced coordinates. The
intention of this study is to verify compliance with Federal Aviation Administration’s (hereafter
“FAA”) guidelines for notice requirement as per Federal Aviation Regulation 77.13. As a
registered Professional Engineer, I am bound by a code of ethics to hold paramount the safety,
health, and welfare of the public. All statements and calculations offered herein are made in an
objective and truthful manner pursuant to that code.
Summary of Findings
Based on the coordinates, ground elevation, and total structure height supplied by representatives
of Verizon Wireless, this proposed facility does not exceed Federal Aviation Regulation 77.13
and, as such, does not require filing with the FAA of form 7460-1 “Notice of Proposed
Construction” and lighting of the facility is not required. The Towair results are attached.
Sincerely,
Andrew M. Petersohn, P.E.
Registered Professional Engineer
Delaware license number 14438
Paj 22
DETERMINATION Results
PASS SLOPE(100:1): NO FAA REQ-RWY MORE THAN 10499 MTRS & 7430.71 MTRS
(7.43069 KM) AWAY
Lowest
Typ C/ Latitud Longitud Elevatio Runway Length
e R e e Name Address n (m) (m)
AIRP R 39-08- 075-27- DOVER KENT 6.4 3932.80000000000
36.00N 46.00W AFB DOVER, DE 02
PASS SLOPE(100:1): NO FAA REQ-RWY MORE THAN 10499 MTRS & 6310.88 MTRS
(6.31090 KM) AWAY
Lowest
Typ C/ Latitud Longitud Elevatio Runway Length
e R e e Name Address n (m) (m)
AIRP R 39-08- 075-29- DOVER KENT 6.4 3932.80000000000
21.00N 10.00W AFB DOVER, DE 02
PASS SLOPE(100:1): NO FAA REQ-RWY MORE THAN 10499 MTRS & 6489.80 MTRS
(6.48979 KM) AWAY
Lowest
Typ C/ Latitud Longitud Elevatio Runway Length
e R e e Name Address n (m) (m)
AIRP R 39-13- 075-35- DELAWAR KENT 13.4 1091.8
11.00N 26.00W E AIRPARK DOVER/CHESWOL
D, DE
PASS SLOPE(50:1): NO FAA REQ-RWY 10499 MTRS OR LESS & 4133.69 MTRS
(4.13370 ) KM AWAY
Lowest
Typ C/ Latitud Longitud Elevatio Runway Length
e R e e Name Address n (m) (m)
AIRP R 39-11- 075-29- CHANDELL KENT 6.7 772.100000000000
57.00N 15.00W E DOVER, DE 02
ESTATES
PASS SLOPE(25:1): NO FAA REQ-HELIPORT 4425.69 MTRS (4.4257 KM) AWAY
Lowest
Typ C/ Latitud Longitud Elevatio Runway Length
e R e e Name Address n (m) (m)
HELI C 39-08- 075-30- DELDOT KENT 9.1 18.3000000000000
58.00N 18.00W HELISTOP DOVER, DE 01
________________________________________________________________________
PO Box 165
Fairview Village, PA 19409
Phone: 610.304.2024
Fax: 610.584.5387
info@dBmEng.com
Page 2 of 3
Paj 23
DECLARATION OF ENGINEER
Andrew M. Petersohn, P.E., hereby states that he is a graduate telecommunications
consulting engineer possessing Master and Bachelor Degrees in Electrical Engineering
from Lehigh University (2005 and 1999, respectively). His corporation, dBm
Engineering, P.C., has been retained by representatives of Verizon Wireless to perform a
Federal Aviation Administration screening analysis for a proposed telecommunications
facility.
Mr. Petersohn also asserts that the calculations and/or measurements described in this
report were made personally and in a truthful and objective manner. Mr. Petersohn is a
Registered Professional Engineer licensed in Pennsylvania, Delaware, Maryland,
Virginia, New York and Florida with pending reciprocity in New Jersey. He has over a
decade of engineering experience in the field of wireless communications. Mr. Petersohn
is an active member of the National Society of Professional Engineers (NSPE) and the
Institute of Electronic and Electrical Engineers (IEEE). Mr. Petersohn further states that
all facts and statements contained in the foregoing document are true and accurate to the
best of his knowledge. He believes, under penalty of perjury, the foregoing to be correct.
Andrew M. Petersohn, P.E.
Registered Professional Engineer
Delaware license number 14438
Executed this the 16th day of June, 2011
________________________________________________________________________
PO Box 165
Fairview Village, PA 19409
Phone: 610.304.2024
Fax: 610.584.5387
info@dBmEng.com
Page 3 of 3
Paj 24
________________________________________________________________________
PO Box 165
Fairview Village, PA 19409
Phone: 610.304.2024
Fax: 610.584.5387
info@dBmEng.com
June 16, 2011
Claire DiNardo
Arionda, LLC
209 N. Haddon Avenue
Haddonfield, NJ 08033
Subject: Interference Analysis for Proposed Telecommunication Facility
“DOV - TOLSON”
889 Dupont Highway
Dover, DE 19901
Latitude: N 39º 11’ 02.1”
Longitude: W 75º 31’ 52.2”
Ground Elevation: 31.5’ AMSL
Ms. DiNardo:
I have received and executed the request that I perform an independent evaluation of the potential
for harmful interference generated by the proposed Verizon Wireless telecommunications facility
at the above referenced location. The intention of this study is to determine if the manifestation
of harmful interference is a viable concern through the close examination of the radio frequency
(hereafter RF) parameters of the installation. As a registered professional engineer, I am bound
by a code of ethics to hold paramount the safety, health, and welfare of the public. All statements
and calculations offered herein are made in an objective and truthful manner pursuant to that
code.
Summary of Findings
After close examination of the details of this proposal, it is my professional opinion that no
potential exists for the manifestation of harmful interference as a result of the proposed
Verizon Wireless telecommunications facility. My findings indicate that Verizon Wireless will
be operating in full compliance with all applicable standards as outlined in their Federal
Communications Commission licensure.
Sincerely,
Andrew M. Petersohn, P.E.
Registered Professional Engineer
Delaware license number 14438
Paj 25
Licensure Discussion
Verizon Wireless is bound by its Federal Communications Commission (hereafter FCC)
licensure to transmit only the specific frequencies and power levels for which they are
licensed. In Kent County, Delaware these licenses include the ‘B’ Cellular Band, the ‘F’
PCS band and the recently auctioned ‘F’ AWS, and ‘A‘ and ‘C’ 700 MHz bands. Other
communication facilities and services such as emergency responders, television
broadcasting, AM/FM broadcasting, mobile to mobile radios, and home electronics
operate at different frequencies, once again, allocated by the FCC. For this reason, the
manifestation of direct, harmful interference is precluded by virtue of Verizon Wireless
being the only entity licensed to utilize these specifically defined portions of the RF
spectrum. As such, there will be no direct, significant radio frequency emissions that fall
into any band other than that for which Verizon Wireless is licensed. However, when
non-linear elements (such as amplifiers) are introduced in the RF path the possibility
exists for indirect interference caused by harmonic and inter-modulated frequency
emissions that may fall outside the licensed spectrum. Due to the fact that the harmonic
and inter-modulated output of Cellular and PCS transmitters is extremely low (as
required by FCC type approval), this only becomes a concern when there are multiple
telecommunication installations in close proximity to one another. This problem is easily
avoided by insuring adequate antenna separation when service providers co-locate on a
structure; the industry standard of 10’ between centerlines has proven adequate. In this
case, the existing AT&T array is the only telecommunication installation in close
proximity and the current configuration affords more than adequate separation to prevent
any indirect interference. In the unlikely event that future radio frequency
interference is reported, it is Verizon Wireless policy to identify and mitigate any
interference issues as quickly as possible.
Facility Discussion
According to the information supplied by representatives of Verizon Wireless the
proposed design for this facility includes a total of not more than twelve (12) panel style
antennas arranged in three sectors at azimuths evenly spaced in the horizontal plane with
respect to true north. The antenna centerline height above ground level is planned at 70’.
Transmitting through these antennas will be up to four (4) CDMA radios in the 850 MHz
band (per sector) at a maximum of 100 watts ERP (effective radiated power) per radio, up
to four (4) CDMA radios in the 1900 MHz band (per sector) at a maximum of 100 watts
ERP (effective radiated power) per radio and one (1) LTE radio in the 700 MHz band
(per sector) at a maximum of 100 watts ERP (effective radiated power) per radio.
________________________________________________________________________
PO Box 165
Fairview Village, PA 19409
Phone: 610.304.2024
Fax: 610.584.5387
info@dBmEng.com
Page 2 of 4
Paj 26
Additional Remarks
The radio frequency emission levels from Verizon Wireless and other PCS and Cellular
communications base stations are similar to that of other two-way communications
systems such as those used by police, fire and ambulance personnel. In contrast,
commercial broadcast systems such as television and radio often transmit at power levels
ten times greater or more than the systems discussed above. Due to the relatively low
power output, the potential for harmful interference is greatly reduced as the harmonic
and inter-modulated emissions are typically in the noise floor of most receivers when
only a few hundred feet away.
________________________________________________________________________
PO Box 165
Fairview Village, PA 19409
Phone: 610.304.2024
Fax: 610.584.5387
info@dBmEng.com
Page 3 of 4
Paj 27
DECLARATION OF ENGINEER
Andrew M. Petersohn, P.E., hereby states that he is a graduate telecommunications
consulting engineer possessing Master and Bachelor Degrees in Electrical Engineering
from Lehigh University (2005 and 1999, respectively). His corporation, dBm
Engineering, P.C., has been retained by representatives of Verizon Wireless to perform
an interference analysis for a proposed telecommunications facility.
Mr. Petersohn also asserts that the calculations and/or measurements described in this
report were made personally and in a truthful and objective manner. Mr. Petersohn is a
Registered Professional Engineer in Pennsylvania, New York, Maryland, Delaware,
Florida and Virginia with pending reciprocity in New Jersey. He has over a decade of
engineering experience in the field of wireless communications. Mr. Petersohn is an
active member of the National Society of Professional Engineers (NSPE) and the Institute
of Electronic and Electrical Engineers (IEEE). Mr. Petersohn further states that all facts
and statements contained in the foregoing document are true and accurate to the best of
his knowledge. He believes, under penalty of perjury, the foregoing to be correct.
Andrew M. Petersohn, P.E.
Registered Professional Engineer
Delaware license number 14438
Executed this the 16th day of June, 2011.
________________________________________________________________________
PO Box 165
Fairview Village, PA 19409
Phone: 610.304.2024
Fax: 610.584.5387
info@dBmEng.com
Page 4 of 4
Paj 28
________________________________________________________________________
PO Box 165
Fairview Village, PA 19409
Phone: 610.304.2024
Fax: 610.584.5387
info@dBmEng.com
June 30, 2011
Claire DiNardo
Arionda, LLC
209 N. Haddon Avenue
Haddonfield, NJ 08033
Subject: Radio Frequency Design Analysis
“DOV - TOLSON”
889 Dupont Highway
Dover, DE 19901
Latitude: N 39º 11’ 02.1”
Longitude: W 75º 31’ 52.2”
Ground Elevation: 31.5’ AMSL
Ms. DiNardo:
I have received and executed the request that I perform an independent evaluation and design
review for the Verizon Wireless telecommunications facility proposed at the above referenced
coordinates. The intention of this study is to provide an objective, professional opinion regarding
the proposal from a Radio Frequency design perspective. Specifically, how the site complements
the existing network and what capacity objectives it fulfills. As a registered Professional
Engineer, I am bound by a code of ethics to hold paramount the safety, health, and welfare of the
public. All statements and calculations offered herein are made in an objective and truthful
manner pursuant to that code.
Summary of Findings
In my professional opinion, the proposed facility is extremely well suited to provide enhanced
network capacity for City of Dover. Specifically, the Verizon Wireless facilities serving North
Dover that are trending toward capacity exhaustion will be effectively offloaded by the proposed.
The proposal is the most effective means of satisfying the capacity demand in Dover and the
location and proposed antenna height are the least intrusive means of providing adequate capacity
for Verizon Wireless subscribers in the targeted portions of Dover. The designed antenna height
is the absolute minimum acceptable in order to achieve a high percentage of the site’s capacity
goals.
Sincerely,
Andrew M. Petersohn, P.E.
Registered Professional Engineer
Delaware license number 14438
Paj 29
Network Capacity in Dover
The Verizon Wireless facilities currently serving the Dover area are nearing their data
capacity upper-limit “ceiling”. Spurred on by smart-phones, data cards, and the various
applications and content available, an exponential growth in data use over the past few
years has left providers, equipment manufacturers, and the FCC looking for solutions and
radio spectrum to address the demand. Because Verizon Wireless can only broadcast and
receive in the bands for which they are licensed, there is a finite amount of data
throughput that can be supported even using the most modern equipment offered by base-
station manufacturers. Illustrated below, actual data usage coupled with a conservative
county-based future data use trend indicates that if left unaddressed the capacity demand
on the existing facilities serving the Dover area will overrun the available resources
before the end of 2011. During NASCAR race weekends and other events that create an
influx of traffic the wireless data demand is already outstripping available network
capacity.
________________________________________________________________________
PO Box 165
Fairview Village, PA 19409
Phone: 610.304.2024
Fax: 610.584.5387
info@dBmEng.com
Page 2 of 7
Paj 30
Existing Verizon Wireless Service
Verizon has six (6) existing sites in the areas targeted for capacity enhancement. These
sites will be the first tier of neighbors of the proposed facility:
Cell Number Name Structure Type Antenna Centerline Ht (ft) Street Address
11 DOVER DOWNS Monopole 110 0 Bacon Avenue
25 WEST DOVER Tank 126 1260 West North Road
26 FOX HALL Tank 115 1293 Walker Road
213 NORTH DOVER Self‐support Structure 188 2030 N. DuPont Hwy
214 DOVER RACE Self‐support Structure 98 1407 North DuPont Hwy
215 SOUTH DOVER Tank 118 391 United Way
Proposed Verizon Wireless Capacity Upgrade
Illustrated in Figure 1 below, the proposed facility with a 70’ antenna centerline will
provide consistent signal dominance to a significant portion of geography in the areas
targeted for capacity offload. Any decrease in the height of the proposed antenna will
decrease the dominance area and diminish the effectiveness of the proposed facility and
be a detriment the overall network capacity. A failure to address the pending capacity
shortage will undoubtedly result in excessive data service outages and interruptions for
Verizon Wireless customers in Dover including those that will impact public safety.
Figure 1 – Proposed Capacity Offload
________________________________________________________________________
PO Box 165
Fairview Village, PA 19409
Phone: 610.304.2024
Fax: 610.584.5387
info@dBmEng.com
Page 3 of 7
Paj 31
As illustrated in Figure 2 below, constructing the site at the maximum overall height of
45’ will significantly decrease the dominance and consistency of its coverage footprint
relative to the proposed antenna centerline of 70’. This height decrease would
substantially diminish the facility’s ability to offload the existing sites and contribute
meaningfully to the overall network capacity in the area. With most of the surrounding
sites’ antenna centerlines in the 100’+ range, a new facility must be as close as possible
to that range in order to “compete” with its neighbors for mobile subscribers. A facility
with an approximate 40’ centerline could only be dominant to the subscribers in its
immediate surroundings as the facility’s line of site to potential subscribers would be
interrupted by nearly any clutter feature surrounding the site including buildings, trees,
overpasses, etc... At 70’, the proposed antenna height will significantly eclipse the
prevailing clutter height and allow for significantly better sight lines to potential
subscribers.
Figure 2 –Capacity Offload with 40’ Antenna Centerline
________________________________________________________________________
PO Box 165
Fairview Village, PA 19409
Phone: 610.304.2024
Fax: 610.584.5387
info@dBmEng.com
Page 4 of 7
Paj 32
Reliable Service
The term “reliable” is used to describe areas where a Verizon Wireless subscriber has the
ability to place, receive, and maintain a phone call. Additionally, the concept of reliable
service extends beyond just voice communication; access to the data network with a high
probability of success and adequate throughput is now a component of reliable service.
Without adequate capacity, there cannot be reliable service as users attempting to access
the network through an overburdened facility will be rejected until such time that
resources become available. If the network is not dimensioned properly, delays in
network availability are as detrimental as coverage gaps as both will result in a denial of
service to the customer. Reliable service provided from a facility is affected by many
factors including surrounding topography, clutter types, foliage, and subscriber loading.
Because the network must maintain reliability under all conditions, these factors are
taken into consideration when designing a facility upgrade.
________________________________________________________________________
PO Box 165
Fairview Village, PA 19409
Phone: 610.304.2024
Fax: 610.584.5387
info@dBmEng.com
Page 5 of 7
Paj 33
Emergency Services Implications
Wireless devices are widely used by municipal emergency services for voice and data
services including those that impact public safety. Additionally enhanced 911 (E911)
services, which allow a mobile caller to be located by the dispatch center, are dependent
on an adequate service level to provide help in an emergency.
Technical Parameters of Consideration
The above calculations were based on the equipment configuration information furnished
by representatives of Verizon Wireless. Specifically for this installation, Verizon
Wireless plans to install panel style antennas arranged in three sectors with azimuths
evenly spaced in the horizontal plane with respect to true north. The antenna centerline
height above ground level is planned at 70’. Transmitting through these antennas will be
up to four (4) CDMA radios in the 850 MHz band (per sector) at a maximum of 100
watts ERP (effective radiated power) per radio, up to four (4) CDMA radios in the 1900
MHz band (per sector) at a maximum of 100 watts ERP (effective radiated power) per
radio and one (1) LTE radio in the 700 MHz band (per sector) at a maximum of 100 watts
ERP (effective radiated power) per radio.
________________________________________________________________________
PO Box 165
Fairview Village, PA 19409
Phone: 610.304.2024
Fax: 610.584.5387
info@dBmEng.com
Page 6 of 7
Paj 34
DECLARATION OF ENGINEER
Andrew M. Petersohn, P.E., hereby states that he is a graduate telecommunications
consulting engineer possessing Master and Bachelor Degrees in Electrical Engineering
from Lehigh University (2005 and 1999, respectively). His corporation, dBm
Engineering, P.C., has been retained by representatives of Verizon Wireless to perform a
radio frequency design analysis for a proposed telecommunications facility.
Mr. Petersohn also asserts that the calculations and/or measurements described in this
report were made personally and in a truthful and objective manner. Mr. Petersohn is a
Registered Professional Engineer licensed in Pennsylvania, Delaware, Maryland,
Virginia, New York and Florida with pending reciprocity in New Jersey. He has over a
decade of engineering experience in the field of wireless communications. Mr. Petersohn
is an active member of the National Society of Professional Engineers (NSPE) and the
Institute of Electronic and Electrical Engineers (IEEE). Mr. Petersohn further states that
all facts and statements contained in the foregoing document are true and accurate to the
best of his knowledge. He believes, under penalty of perjury, the foregoing to be correct.
Andrew M. Petersohn, P.E.
Registered Professional Engineer
Delaware license number 14438
Executed this the 30th day of June, 2011.
________________________________________________________________________
PO Box 165
Fairview Village, PA 19409
Phone: 610.304.2024
Fax: 610.584.5387
info@dBmEng.com
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