Geonamic® CL/HCA Calculator is designed to assess the risk of the potential impact of a gas pipeline release. Through a comprehensive algorithm based on the PHMSA ruling, the HCA Calculator identifies DOT 192.5 Class Locations and 192.905 High Consequence Areas (HCA). It helps operators identify HCAs associated with their pipeline assets and define an effective integrity management program. HCA Calculator uses the technologies of ArcGIS, which provides access to key mapping, analysis and geo-processing capabilities.

Audit Proven Results:
HCA calculator is solely dedicated to supporting integrity management programs. It aids operators in complying with OPS ruling and audits. With its easy to use interface and wizard capabilities, plus a complete class location analysis, HCA calculator has been proven through audits to produce accurate results time and time again.
Configurable Options:
• Includes many options that client can use to interpret PHMSA rules
• Class Location options
• Sliding mile and clustering method separately
• Sliding mile always defines class rating and cluster refi ned boundaries • Option to remove small class 2 & 3 segments that do not have any clusters
• Uses GIS buffer method or perpendicular snap method to generate cluster
• Cluster definition options - client defi nes number of structures that can form a cluster • Cluster rating based on sliding mile result or based on units count inside cluster
• User defines rules to flag HOL structures
• Calculates entire or partial (if only partial) polygon structure falls within pipeline buffer • HCA determination options
• Can consider natural barrier
• User defines rules to flag structures that qualifies Identify Site HCA
• User prorates structures
• Default, best, worst, or average PIR for missing data
• User keeps or removes small gaps within one cluster if cluster intersects pipeline with multiple segments
• Users are allowed to add PIR adjustment to formula
• Different constant for types of gas when calculating PIR

Result Representation:
• All middle stage data presented to understand how result was reached
• Visually displays sliding PIR layer
 • Separates Identifi ed HCA and Dwelling HCA layer
• Separates Identifi ed HCA layer by type: public outside, public inside and impaired mobility
• Existing Class Location and HCA added on the fl y as map layer
• Generates pipeline PIR buffer layer with MOP/Diameter labeling
• Shows actual structures used for dwelling HCA and IS HCA calculation
 • Highlights HOL structure and cluster with unit count
 • Result comparison with historic class location and HCA results
• Visually shows difference in map
• Differences within user defi ned tolerance
• Highlights segment on map
• Saves selected records and commits to corporate database
• Views results in Google earth, exploring HCA and Class Location result with amazing 3D fl ying view

Reliable Performance:
 • Calculates single line, multiple lines or entire system
• Monitors batch processing with HCA Run Manager
• Shares and archives results with HCA Run Manager