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COUNCIL MINIMUM TECHNICAL STANDARDS INDEX PAGE
General Survey, Map, and Report Content Requirements.
1.
Nothing in these rules shall preclude a Council member from
entering into a contract with a client which requires more
stringent surveying standards than those set forth in this rule.
2.
Survey Data:
a.
OBJECTIVE:
The public must be able to rely on the accuracy of measurements
and maps produced by a Council member.
b.
Council members must achieve the following minimum standards of
accuracy, completeness, and quality:
i.
The accuracy of the survey measurements shall be premised upon
the type of survey and the expected use of the survey and map.
All measurements must be in accordance with the United States
standard, using either feet or meters.
ii.
Records of these measurements shall be maintained for each
survey by either the individual Council member or the surveying
and mapping business entity.
c.
Measurement and computation records must be dated and must
contain sufficient data to substantiate the survey map and
insure that the accuracy portion of these standards has been
met.
3.
Surveys, Maps, and/or Survey Products Content.
a.
OBJECTIVE:
In order to avoid misuse of a survey and map, the Council member
must adequately communicate the survey results to the public
through a map, report, or report with an attached map. Any
survey map or report must identify the responsible Council
member and contain standard content.
b.
Council members must meet the following minimum standards of
accuracy, completeness, and quality:
i.
Each survey map and report shall state the type of survey it
depicts consistent with the types of surveys defined in
paragraphs (10)(a)-(k) above. The purpose of a survey, as set
out in paragraphs (10)(a)-(k) above, dictates the type of survey
to be performed and depicted, and a licensee may not avoid the
minimum standards required by rule of a particular survey type
merely by changing the name of the survey type to conform with
what standards or lack of them the licensee chooses to follow.
ii.
All survey maps and reports must bear the name, certificate of
authorization number, and street and mailing address of the
business entity issuing the map and report, along with the name
and license number of the Council member in responsible charge.
The name, license number, and street and mailing address of a
Council member practicing independent of any business entity
must be shown on each survey map and report.
iii.
All survey maps must reflect a survey date, which is the date of
data acquisition. When the graphics of a map are revised, but
the survey date stays the same, the map must list dates for all
revisions.
iv.
The survey map and report and the copies of the survey map and
report, except those with electronic signature and electronic
seal, must contain a statement indicating that the survey map
and report or the copies thereof are not valid without the
signature and the original raised seal of a licensed Council
member.
v.
If either the business entity or the individual licensee does
not possess professional liability insurance, then the map,
report, and/or survey must contain the following printed
statement in letters at least 1/4'' high: The survey depicted
here is not covered by professional liability insurance.
vi.
Additions or deletions to survey maps or reports by other than
the signing party or parties is prohibited without written
consent of the signing party or parties.
vii.
All computed data or plotted features shown on survey maps must
be supported by accurate survey measurements unless clearly
stated otherwise.
viii.
Bearings, distances, coordinates, and elevations shown on a
survey map shall be substantiated by survey measurements unless
clearly stated otherwise.
ix.
A reference to all bearings shown on a survey map or report must
be clearly stated, i.e., whether to "True North"; "Grid North as
established by the NOS"; "Assumed North based on a bearing for a
well defined line, such as the center line of a road or right of
way, etc."; "a Deed Call for a particular line"; or "the bearing
of a particular line shown upon a plat." References to Magnetic
North should be avoided except in the cases where a comparison
is necessitated by a Deed Call. In all cases, the bearings used
shall be referenced to some well-established and monumented
line.
x.
A designated "north arrow" and either a stated scale or graphic
scale of the map shall be prominently shown upon the survey map.
xi.
Abbreviations generally used by the public or in proper names
that do not relate to matters of survey are excluded from the
legend requirement.
c.
Acceptable abbreviations on the face of survey maps are:
N = North
S = South
E = East
W = West
or any combination such as NE, SW, etc.
° = Degrees
' = Minutes when used in a bearing
'' = Seconds when used in a bearing
' = Feet when used in a distance
'' = Inches when used in a distance
AC = Acres
+/- = More or less (or Plus or Minus)
metric notation
Any other abbreviations relating to survey matters must be
clearly shown within a legend or notes appearing on the face of
the map or report.
4.
When special conditions exist that
effectively prevent the survey from meeting these minimum
standards, the special conditions and any necessary deviation
from the standards shall be noted upon the map or report.
5.
The responsibility for all mapped
features must be clearly stated on any map or report signed by a
Council member. When mapped features surveyed by the signing
Council member have been integrated with mapped features
surveyed by others, then the map or report shall clearly state
the individual primarily responsible for the map or report.
6.
Report Items:
a.
Report items are information, as required by other parts of this
rule, such as: abbreviations, legends, accuracy statements,
feature lists, datums used, and things done or not done as part
of the survey and mapping process. In addition, the map or
report shall contain other items necessary for an adequate
communication of survey methods and results as judged by the
Council member such as: data sources, measurement methods,
history and lineage of data, and limitations pertaining to the
information presented.
b.
Text Report items shall be displayed either through notes on the
map, report, or in a text report delivered with the map. When
the report is produced as a text document and a map is attached,
the report shall be signed and sealed. When the map is delivered
in digital form only, then a report is required. An attached map
must clearly reference the report by title, date and subject;
and the report must likewise clearly refer to the map by title,
date, and subject. Statements must be made on the map and in the
report that neither is full and complete without the other.
c.
A sample Survey or Map Report is included at
Appendix A: Sample Survey or Map Report.
7.
In order to perpetuate testimony taken
from witnesses the Council member shall take affidavits from all
such affiants. A sample Affidavit is included at
Appendix B: Sample Affidavit.
8.
When a Council member determines that
there is a dispute or confusion about boundary lines the Council
member shall execute a Property Line Agreement between the
adjoining parties. A sample Property Line Agreement is included
at
Appendix C: Sample Property Line Agreement.
9.
Map Accuracy.
a.
Vertical Feature Accuracy - Vertical Control: Field-measured
control for elevation information shown upon survey maps or
reports shall be based on a level loop or closure to a second
benchmark. Closure in feet must be accurate to a standard of
plus or minus .05 ft. times the square root of the distance in
miles. All surveys and maps or reports with elevation data shall
indicate the datum and a description of the benchmark(s) upon
which the survey is based. Minor elevation data may be obtained
on an assumed datum provided the base elevation of the datum is
obviously different than the established datum.
b.
Horizontal Feature Accuracy:
i.
Horizontal Control: All surveys and maps or reports expressing
or displaying features in a publicly published coordinate system
shall indicate the coordinate datum and a description of the
control points upon which the survey is based. Minor coordinate
data may be obtained and used on an assumed datum provided the
numerical basis of the datum is obviously different than a
publicly published datum.
ii.
The accuracy of control survey data shall be verified by
redundant measurements or traverse closures. All control
measurements shall achieve the following closures:
Commercial/High Risk Linear: 1 foot in 10,000 feet;
Suburban: Linear: 1 foot in 7,500 feet;
Rural: Linear: 1 foot in 5,000 feet;
iii.
When statistical procedures are used to calculate survey
accuracies, the maximum acceptable positional tolerance should
be based on the 95% confidence level.
iv.
Intended Display Scale: All maps or reports of surveys produced
and delivered with digital coordinate files must contain a
statement to the effect of: "This map is intended to be
displayed at a scale of 1/__ or smaller".
COUNCIL MINIMUM
TECHNICAL STANDARDS INDEX PAGE
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