CLEAR county synthesis: LARIMER
Clinical, Local, Environmental Air & Regulatory Intelligence
Stored synthesis
CLEAR county synthesis: LARIMER
Guardrail: System-generated screening synthesis. Generated from a structured CLEAR evidence packet. Not a causation, compliance, enforcement, permit violation, or health attribution conclusion.
Evidence summary
Structured packet summary
Topicpm25_industry_overlap_2024
Statusllm_completed
Facility candidate count61
Distinct owner count
Distinct NAICS count
Average PM2.56.156
Max PM2.5 AQI86
Max ozone AQI161
PM2.5 monitor days366
Ozone monitor days
Unhealthy days2
Unhealthy for sensitive groups days21
Industrial profile
Top facility owners
- CONNELL RESOURCES
- HORN CONST CO
- MAGPIE OPERATING INC.
- DON KEHN CONST INC
- AGGREGATE INDUSTRIES - WCR, INC.
- AGRI ENERGETICS
- ALPINE STATION
- ARMADILLO COATINGS
- BESTWAY CONCRETE CO
- BIXBY EXCAVATING
Industrial profile
Top NAICS codes
Industrial profile
Top ZIP codes
- 80524
- 80513
- 80537
- 80648
- 80538
- 80521
- 80549
- 80528
- 80111
- 80535
Air context
Highest PM2.5 dates
- 2024-07-23
- 2024-07-24
- 2024-10-01
- 2024-01-20
- 2024-10-06
- 2024-01-21
- 2024-07-22
- 2024-10-07
- 2024-07-25
- 2024-10-08
- 2024-07-31
- 2024-08-01
- 2024-10-11
- 2024-07-26
- 2024-11-22
- 2024-09-30
- 2024-10-15
- 2024-10-19
- 2024-01-04
- 2024-03-24
System synthesis
Stored model output
# 1. Executive screening summary Larimer County had an annual maximum AQI of 161, driven by ozone levels, with a maximum PM2.5 AQI of 86. The county recorded 366 days of monitoring for both PM2.5 and ozone, with 21 days classified as unhealthy for sensitive groups and 2 days as unhealthy. The average PM2.5 concentration was 6.156 µg/m³, and the average ozone concentration was 0.04261 ppm. # 2. Industrial profile Larimer County has 61 facility candidates, with 54 distinct owners and 26 distinct NAICS codes. The top facility owners include Connell Resources, Horn Const Co, and Magpie Operating Inc. The most common NAICS codes are 212321, 211130, and 457110. The county also has 61 geocoded facilities, with 61 facilities having zip codes. # 3. PM2.5 and ozone signal The county's PM2.5 and ozone monitoring data show a maximum AQI of 86 for PM2.5 and 161 for ozone. Ozone levels reached a peak AQI of 161 on July 23 and 24, 2024, with arithmetic means of 0.075941 and 0.074154 ppm, respectively. PM2.5 data show elevated levels on July 23 and 24, with average arithmetic means of 27.81875 and 24.447916 µg/m³. # 4. Highest PM2.5 dates The highest PM2.5 levels occurred on July 23 and 24, 2024, with average arithmetic means of 27.81875 and 24.447916 µg/m³, respectively. Other high PM2.5 days include October 1, 2024, and January 20, 2024, with average arithmetic means of 23.502083 and 23.127083 µg/m³. # 5. Confounders and missing data Potential confounders include wildfire smoke, regional transport, meteorology, temperature inversion, agricultural dust, oil and gas activity, traffic, and monitor siting limitations. Missing data include facility-level emissions, permit violation records, hospitalization data, wind and smoke data, and no causal model or source apportionment. # 6. What cannot be concluded No conclusions can be drawn regarding causation, permit violations, enforcement priorities, compliance status, or health attribution. The evidence does not support assertions about the sources of air quality issues or their health impacts. # 7. Recommended next data pulls and policy addendum candidates Additional data pulls should include facility-level emissions, permit violation records, hospitalization data, and wind/smoke data. Policy addendums could focus on monitoring improvements, industrial activity assessments, and regional air quality coordination.
Audit metadata
Packet audit trail
Packet keycolorado_county:larimer:pm25_industry_overlap_2024
Geography nameLARIMER
Geography typecounty
Topicpm25_industry_overlap_2024
Statusllm_completed
Model namepulmhealth-innesa-article
Model routehttp://dgxspark-03:8000/v1/chat/completions
Prompt modetiny
Disable thinkingTrue
Max tokens900
Think blocks strippedTrue
Synthesis completed at2026-07-07T08:17:19.187514+00:00
Created at2026-07-07 01:27:03.693265-06:00
Updated at2026-07-07 02:16:46.956089-06:00