BRIEFING BOOK. Natural Gas Energy Parcel Level GIS

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1 Natural Gas Energy Parcel Level GIS BRIEFING BOOK Examination of techniques & protocols for incorporating National Parcel Layer content to vastly reduce cost of transaction to better meet accelerating demand for higher volume, safer natural gas production, transmission and distribution operations. Boundary Solutions, Inc. Mill Valley, CA NATURAL GAS ENERGY PARCEL-LEVEL GIS BRIEFING BOOK

2 Natural Gas Energy Parcel Level GIS Briefing Book Contents Natural Gas Transmission Line Data Structure High Consequence Analysis Corridor Analysis Alternative Route Analysis Instant Notification 2 NATURAL GAS ENERGY PARCEL-LEVEL GIS BRIEFING BOOK

3 Natural Gas Energy Parcel Level GIS Data Structure Natural Gas Transmission Line BSI s National ParcelMap Data Portal (NPDP) is composed of digital property boundaries and linked tax roll record attributes. All content is completely normalized so an application developed to work anywhere will work everywhere. 3 NATURAL GAS ENERGY PARCEL-LEVEL GIS BRIEFING BOOK

4 Montgomery County Natural Gas Transmission Line NATURAL GAS GIS DATA MODEL PARCEL MAP and Montgomery County Texas Parcel Map Databases Merged into a Test Bed Database 4 NATURAL GAS ENERGY PARCEL-LEVEL GIS BRIEFING BOOK

5 Montgomery County USE CODE THEMATIC MAP OF TEST BED AREA Values Vary slightly from Texas Standard Use Code System Normalized across Counties 5 NATURAL GAS ENERGY PARCEL-LEVEL GIS BRIEFING BOOK

Montgomery County IDENTIFIED HIGH CONSEQUENCE SITES All parcels with a land use code of residential, commercial, industrial, parks, schools public

6 Montgomery County IDENTIFIED HIGH CONSEQUENCE SITES All parcels with a land use code of residential, commercial, industrial, parks, schools public and medical facilities and other gathering places were exported to a separate Identified Sites layer. 6 NATURAL GAS ENERGY PARCEL-LEVEL GIS BRIEFING BOOK

7 Natural Gas Energy Parcel Level GIS High Consequence Analytics Demonstration Site Countywide or Pipe Corridor Parcel layers can reduce High Consequence Area determination to seconds while making procedures more systematic and less prone to human error. 7 NATURAL GAS ENERGY PARCEL-LEVEL GIS BRIEFING BOOK

8 Potential Impact Radius (PIR). PIR = 0.69* (square root of (p*d 2)), PIR = radius of a circular area in feet surrounding the point of failure, p = maximum allowable operating pressure (MAOP) LB/SF d = nominal diameter of the pipeline in inches = is the natural gas coefficient. Montgomery County 660 FT Potential Impact Radius (PIR) HIGH CONCEQUENCE AREA ANALYSIS AND REPORTING A PIR 660 feet Radius (200 Meters) is generated every 660 feet along the transmission pipe alignment. 8 NATURAL GAS ENERGY PARCEL-LEVEL GIS BRIEFING BOOK

9 Montgomery County Parcels Designated as Identified Sites Total Identified Sites Within Each PIR HIGH CONCEQUENCE AREA ANALYSIS AND REPORTING The total number of identified parcels (sites) with boundaries within or crossing each PIR are counted up and assigned to each PIR. 9 NATURAL GAS ENERGY PARCEL-LEVEL GIS BRIEFING BOOK

are many ways to display the relative exposure of pipe segment as well as the High Consequence Aras,

10 Montgomery County Total Total Identified Site Site Thematic Map of Relative Number of Identified Sites within each PIR HIGH CONCEQUENCE AREA ANALYSIS AND REPORTING Once a value is assigned, there are many ways to display the relative exposure of pipe segment as well as the High Consequence Aras, segments with 660 feet of more than 20 Identified sites. 10 NATURAL GAS ENERGY PARCEL-LEVEL GIS BRIEFING BOOK

11 Natural Gas Energy Parcel Level GIS Corridor Analysis Demonstration Site In the opening moments of planning a new pipeline, the tentative alignment can be digitized and buffered to formulate a single parcel map database of just the properties within a prescribed distance (8,000 FT). All the property attributes in the total database are captured right along with the geometry. 11 NATURAL GAS ENERGY PARCEL-LEVEL GIS BRIEFING BOOK

Buffered Alignment as Corridor Extents Proposed New Segment All Parcels within or Crossing Corridor Extents PROPOSED NEW ALIGNMENT CORRIDOR ANALYSIS Minutes to digitize a proposed new transmission

12 Buffered Alignment as Corridor Extents Proposed New Segment All Parcels within or Crossing Corridor Extents PROPOSED NEW ALIGNMENT CORRIDOR ANALYSIS Minutes to digitize a proposed new transmission pipe alignment, adding it to the data model, moments more to buffer as needed and write all parcels in the national parcel layer to a new shp file of just the parcels within or touching this extent line. 12 NATURAL GAS ENERGY PARCEL-LEVEL GIS BRIEFING BOOK

13 PROPOSED PIPELINE CORRIDOR LAND USE THEMATIC MAP Use Codes are normalized across county and state boundaries so that one color scheme fits all. Seen here are land use patterns useful for adjusting the alignment as needed. 13 NATURAL GAS ENERGY PARCEL-LEVEL GIS BRIEFING BOOK

PROPOSED NEW ALIGNMENT CORRIDOR ANALYSIS Assigned Use Codes, assessed improvement values and ownership is used to identify The alignment is adjusted to reduce the proximity

14 PROPOSED NEW ALIGNMENT CORRIDOR ANALYSIS Assigned Use Codes, assessed improvement values and ownership is used to identify The alignment is adjusted to reduce the proximity to High Consequence Parcels. Ownership and other property attributes are linked to the boundaries for when you need them. 14 NATURAL GAS ENERGY PARCEL-LEVEL GIS BRIEFING BOOK

15 Natural Gas Energy Parcel Level GIS Alternative Route Analysis A common need is to look at alternative routes within a corridor, be it few feet or a mile different as in this case. Demonstration Site 15 NATURAL GAS ENERGY PARCEL-LEVEL GIS BRIEFING BOOK

originally proposed is buffered 1,320 ft and all parcels within or crossing this buffer are selected from

16 All Parcels within or Crossing Original Alignment Buffer 1,320 Foot Buffer Original Alignment Property Records in Original Alignment Corridor Extents ALTERNATIVE ROUTE ALIGNMENT ANALYSIS The proposed new pipe alignment as originally proposed is buffered 1,320 ft and all parcels within or crossing this buffer are selected from parcels within corridor and their attributes are generated as report. 16 NATURAL GAS ENERGY PARCEL-LEVEL GIS BRIEFING BOOK

ALIGNMENT ANALYSIS In seconds, a buffer around the alternative is struck generating an

17 All Parcels within or Crossing Alternative Alignment Buffer 1,320 Foot Buffer Alternative Alignment Property Records in Alternative Alignment Corridor Extents ALTERNATIVE ROUTE ALIGNMENT ANALYSIS In seconds, a buffer around the alternative is struck generating an alternative list of parcels within or touching that buffer. 17 NATURAL GAS ENERGY PARCEL-LEVEL GIS BRIEFING BOOK

ALTERNATIVE ROUTE ALIGNMENT ANALYSIS In a

relative percent high consequence parcels

18 ALTERNATIVE ROUTE ALIGNMENT ANALYSIS In a matter of minutes, identified sites are counted up in each alternative buffer to compare the two alignments in terms of relative percent high consequence parcels encountered by each. 18 NATURAL GAS ENERGY PARCEL-LEVEL GIS BRIEFING BOOK

19 Natural Gas Energy Parcel Level GIS Instant Notification Demonstration Site A facility to be constructed at the upstream end of an EXISTING transmission line requires notification of every parcel within or touching a one mile buffer around it to assure adequate public outreach. Flawless rapid response to this request can be made within minutes of identifying the parcel boundary of the property being developed. 19 NATURAL GAS ENERGY PARCEL-LEVEL GIS BRIEFING BOOK

20 Montgomery County INSTANT NOTIFICATION AREA STRADLING TWO COUNTIES Shown here to provide context within the Test Bed Area the extents of the project area. 20 NATURAL GAS ENERGY PARCEL-LEVEL GIS BRIEFING BOOK

parcel being developed is selected, a buffer is

21 Montgomery County INSTANT NOTIFICATION AREA STRADLING TWO COUNTIES In seconds after the subject parcel being developed is selected, a buffer is generated that 21 NATURAL GAS ENERGY PARCEL-LEVEL GIS BRIEFING BOOK

Montgomery County INSTANT NOTIFICATION PROPERTIES STRADLING

unified county independent geospatial database that includes

Automatic mailing of a letter to every owner of every parcel

22 Montgomery County INSTANT NOTIFICATION PROPERTIES STRADLING TWO COUNTIES But the request is processed referencing a unified county independent geospatial database that includes every parcel in Harris and Montgomery County. Automatic mailing of a letter to every owner of every parcel in the buffer can be easily scripted. 22 NATURAL GAS ENERGY PARCEL-LEVEL GIS BRIEFING BOOK

Natural Gas Energy Parcel Level GIS BRIEFING BOOK Examination of techniques & protocols for incorporating National Parcel Layer content to vastly reduce cost of transaction to better meet

23 Natural Gas Energy Parcel Level GIS BRIEFING BOOK Examination of techniques & protocols for incorporating National Parcel Layer content to vastly reduce cost of transaction to better meet accelerating demand for higher volume, safer natural gas production, transmission and distribution operations. Boundary Solutions, Inc. Mill Valley, CA NATURAL GAS ENERGY PARCEL-LEVEL GIS BRIEFING BOOK

GIS Tools and Techniques for Environmental Assessment of Pipeline Construction. Erik Danielson February 27, 2007

GIS Tools and Techniques for Environmental Assessment of Pipeline Construction Erik Danielson February 27, 2007 Environmental Assessment Pipeline construction or replacement ESIA/FERC projects GIS & GPS