Technical Documentation
WMP Pipeline System Card
This document describes the current configuration of the Wildlife Management Plan generation pipeline. It is published for the benefit of County Appraisal District reviewers, landowners, and any party evaluating the methodology behind a Thorpe Land Services deliverable.
Current version: v4.0 | Last updated: April 2026
Pipeline Configuration
| Parameter | Value |
|---|---|
| Pipeline Version | v4.0 |
| Phases | 4 (Research, Synthesis, Implementation, Verification) |
| Soil Data Source | NRCS Web Soil Survey (SSURGO, on-demand per parcel) |
| Aerial Imagery | TNRIS NAIP (2004 to 2024, biennial refresh) |
| Output Format | PDF (WeasyPrint), Interactive HTML Map (MapLibre GL) |
| QA Gate | Automated (Math, Legal, Editorial, Visual categories) |
| Species Database | TPWD RTEST, 1,057 species, 254 counties, Q1 2026 validated |
| Ecoregion Boundary Set | 34 TAC Section 9.2002 (12 ecoregions, effective 2024) |
| Constraint Rules Active | 18 |
| Verification Threshold | Minimum 3 of 7 statutory management pillars |
Active Constraint Rules
The following 18 rules are evaluated against every parcel before plan assembly. Each rule is derived from a named Texas or federal statute. No rule can be disabled, overridden, or suppressed for a specific deliverable.
01When a property boundary intersects a pipeline with diameter exceeding 16 inches, the system flags a 660-foot statutory setback zone.
Authority: Railroad Commission of Texas
02When a property falls within a FEMA-designated regulatory floodway, the system records a development prohibition.
Authority: 44 CFR 60.3(d)
03When a property contains or adjoins an unplugged well, the system flags potential plugging liability exceeding $100,000.
Authority: Texas Natural Resources Code Chapter 89
04When a property intersects the Edwards Aquifer recharge zone, the system flags a 20% impervious cover cap.
Authority: 30 TAC Chapter 213
05When a structure falls within 1,500 feet of an H2S-producing well, the system flags a blast zone exclusion for schools and hospitals.
Authority: Railroad Commission Rule 36
06When a property intersects USFWS-designated critical habitat, the system flags ESA Section 7 consultation requirements.
Authority: 16 U.S.C. Section 1536
07When slope exceeds 15% across more than 25% of the parcel, the system flags a steep slope constraint for development.
Authority: Local subdivision ordinances (county-specific)
08When a property falls within a transmission line easement, the system flags habitable structure restrictions.
Authority: Public Utility Commission of Texas
09When a property intersects a Groundwater Conservation District with export restrictions, the system flags water export limitations.
Authority: Texas Water Code Chapter 36
10When a property boundary falls within an FAA noise contour exceeding 65 DNL, the system flags residential use restrictions.
Authority: 14 CFR Part 150
11When a property intersects a mapped WUI zone, the system flags wildland-urban interface fire risk.
Authority: Texas A&M Forest Service WUI assessment
12When ERCOT interconnection queue shows active applications within 3 miles, the system flags potential energy infrastructure proximity.
Authority: ERCOT Generation Interconnection Status
13When a property lacks a minimum of three qualifying management practices for the assigned ecoregion, the system flags plan non-compliance.
Authority: Tex. Tax Code Section 23.521(a)
14When census methodology does not match the species group, the system flags practice-species mismatch.
Authority: 34 TAC Section 9.2002
15When a practice intensity falls below the ecoregion minimum threshold, the system flags insufficient management effort.
Authority: TPWD Comprehensive Wildlife Management Planning Guidelines
16When a property contains navigable waterways, the system flags public access and use restrictions.
Authority: Texas Natural Resources Code Section 21.001
17When a property is subject to ETJ and meets SB 2038 opt-out criteria, the system flags extraterritorial jurisdiction vulnerability.
Authority: Senate Bill 2038 (88th Legislature)
18When a property lacks a current agricultural appraisal or has a gap exceeding three tax years, the system flags wildlife management ineligibility.
Authority: Tex. Tax Code Section 23.521(a)(1)
Known Limitations
Parcel boundaries from County Appraisal Districts may contain positional errors. Spatial intersections inherit that uncertainty.
Species presence data reflects documented occurrences in the TPWD RTEST database. Absence from the database does not confirm absence from a property.
Soil data from NRCS reflects mapped survey units at published scales. Site-specific conditions may differ.
Data freshness varies by source. Refresh cycles are documented in the Pipeline Configuration table.
The system does not replace a licensed surveyor, a Phase I ESA, or a title commitment.
For properties with complex endangered species conditions or active remediation needs, a licensed biologist site visit may be appropriate.
Verification Behavior
The verification phase (Phase 4) checks each assembled deliverable against statutory thresholds before release. A deliverable that fails any threshold check is held for review. It is not released.
When the pipeline is extended to additional ecoregions or constraint rules are added, validation results for each release will be published in this section. No validation statistics are published until the underlying test has been conducted.
Revision History
This document is versioned. Material changes to the pipeline configuration are logged below.
Four-phase pipeline architecture. Added NRCS soil integration, NAIP historical aerial analysis, automated compliance verification, QA gate with 4 audit categories.
Pipeline setback rule updated to include diameter-based threshold. Added GCD jurisdiction for 98 districts.
Species database expanded to 1,057 species. 52 hand-authored ecological profiles added.
Initial constraint pipeline. 18 rules, 12 data sources, Edwards Plateau validation complete.
Disclosure
Thorpe Land Services is a land services firm with a commercial interest in the transactions it analyzes. The constraint engine executes before any commercial relationship is established. Its output is deterministic, citation-backed, and not editable after generation. A constraint flagged by the system cannot be suppressed or removed from a deliverable.
For the full compliance methodology, see the Compliance Architecture.