ISOLATED SURVEYS

GNSS Observations

ETS Observation for Traverse, Triangulation, or trilateration

Determination of position of the lot's boundary from an established reference

point shall be conducted using:

1. __________________________, if the area is at least 1,500 hectares

2. _____________________________from

established PRS92, if the area is below 1,500 hectares.

ETS

Lot Corners shall be determined by side shot using conventional instruments with the minimum specification. If area is is atleast 1,500 hectares use________

Tertiary Control, 500 meters, 100 meters

The conduct of isolated survey shall be done in accordance with the accuracy requirement for _________________ as stated in

Section 28.b.1, DAO No. 2007-29. Provided that, the length of side shots from the traverse station to the lot corners shall not exceed ________________when using ETS or EDM and ________________ when using steel tapes.

tie line

A _________________ shall be a straight line with known bearing and

distance expressed in degrees, minutes and seconds computed based on the position

of corner 1 of the lot from an established reference monument.

twenty (20)

The boundary survey of the reclaimed land shall be first submitted for verification and approval before its subdivision into smaller lots. Buffer zone

of at least___________ meters shall be maintained along the edge of the reclaimed land between the waterline and the sub-lots.

Foreshore lands

shall be surveyed upon determination of the average

highest and lowest level of the sea water in the area based on the published tide table

from NAMRIA.

Regional Technical Director for Lands, verification survey

The _______________________ may issue order to conduct a ________________ whenever any approved survey is reported to be erroneous, or when titled lands are reported to overlap or where occupancy is reported to encroach another

property.

DENR-LMS Regional Office

All survey work undertaken for verification purposes shall be subject of verification and approval in the _____________ concerned and shall be designated as Verification Surveys ( Vs ).

Segregation survey (Sgs)

are surveys for the purpose of segregating twenty (20) percent or less of the area of previously surveyed large tract of public land.

dash

In Sgs, The portion of the mother lot which can be shown on the isolated survey plan shall be plotted in ___________ lines and adjoining claimants shall be indicated in the plan while the LMS concerned shall indicate the remaining area in the

footnote, if possible.

v

The survey returns of the relocation/reinstatement survey shall be forwarded to the DENR-_____________ concerned for verification and approval.

The survey symbol of Rel and the corresponding number shall designate this survey with the original survey symbol and number shall be indicated

immediately next to it.

Re-survey

For purposes of inscribing the technical description on the title of a tract of land and whose technical description is no longer available in the Lands Management Bureau/Land Management Services or the Land

Registration Authority.

detailed explanation, DENR-LMS Regional Office

The new survey returns which shall be accompanied by a _________________ why the resurvey was necessary, shall be forwarded to the _____________concerned, for verification and approval.

"Special Work Order" ( Swo )

Surveys for geographic and scientific investigations, experiments and all

other surveys not otherwise mentioned in this Manual shall be made in accordance with

special instructions which may be issued for the purpose following the tertiary accuracy

of an isolated survey

law by Congress adopting the final report of the Regional Assessment and Delineation Team (RADT)

The conduct of the delimitation survey shall only proceed after the enactment of the corresponding ____________________ as a result of their assessment/delineation of forestland boundary pursuant to DAO No. 2008-24.

full black ink

The boundaries of the property in ____________ line heavier than

those of adjoining properties. Permanent walls along boundaries shall be drawn by conventional symbols.

dotted red ink lines.

The line from the lot corner to the control stations, from which side

shots were taken, by ___________

two, black ink

The corners indicated by small circles __________ millimeters in diameter drawn in ____________and their respective descriptions noted.

black ink.

The boundary lines with corresponding bearings and distance in

thin black line

Tie line of corner 1 from reference control point in _________

with bearing and distance.

Horizontal (latitude) and vertical (longitude)

black ink

____________________________ lines passing through corner 1 in thin black line and geographic and Cartesian (grid) coordinates in PPCS-TM/PRS 92 indicated in ______________.

five, red.

The Vertical and Horizontal center lines of plane coordinates divisible by __________ shall be accurately drawn on the original plan and inked in ____________

left, right, above, below

The latitude line shall be drawn horizontally from ________ to the ___________ marginal lines through corner one. The corresponding northing based on BLLM No. 1 shall be written ____________ along the latitude line from the left hand border line of the plan towards the right while the geographic latitude shall be indicated ____________ the northing.

top, bottom, left side, bottom, top, opposite the easting

The longitude shall be drawn vertically from the ________ to the _____ marginal lines through corner 1. The easting based on BLLM No. 1 shall be written on the __________ of and along the longitude line from the _____________ border line towards the ______ while the geographic longitude shall be indicated _______________ on the other side of longitude line.

four

The lot shall be centered and plotted on the plan so that its extreme corners shall not be less than ________ centimeters from each marginal line when using any of the scale provided above.

fifty lots

Bearings and distances of the survey shall be tabulated on the plan when these are too numerous to be drawn or shown clearly along or near the boundary lines. When there are more than __________ on the plans, lot descriptions thereof shall be prepared on LMB authorized

forms.

black ink, upper- left

In the case of subdivisions or consolidation subdivision surveys, the boundary data of the lot being subdivided or of the lots being

consolidated- subdivided shall be tabulated in ___________ in a boxed

portion at the __________ corner.

one hectare , light black dotted lines

For lots with areas of ___________or more, the approximate boundary of the area under cultivation and the nature of its vegetation such as rice, pastures, woods, etc. with a brief description of the topographic features such as plain, rolling, hilly or mountainous shall be indicated in _______________________.

dotted black lines

Regardless of the area, permanent structures such as buildings with

concrete foundation, stone wall, etc., shall be indicated by ___________________ on the plans and maps.

LMS

The _______ shall verify the correctness and technical accuracy of the survey returns of the survey covering Isolated Lots