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CLEAR county synthesis: BOULDER

Clinical, Local, Environmental Air & Regulatory Intelligence
Stored synthesis

CLEAR county synthesis: BOULDER

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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 count38
Distinct owner count
Distinct NAICS count
Average PM2.55.94
Max PM2.5 AQI123
Max ozone AQI154
PM2.5 monitor days366
Ozone monitor days
Unhealthy days1
Unhealthy for sensitive groups days9
Industrial profile

Top facility owners

  • GOLDENS COMPANIES
  • LAFARGE WEST, INC.
  • BOULDER CNTY PUBLIC WORKS
  • HOLCIM (US), INC.
  • LOVELAND READY MIX CONCRETE INC
  • ALPINE RESEARCH INC
  • BOULDER BLIMP
  • CAR WORKS AUTO BODY, INC
  • C & M CONCRETE
  • C & M ROCK (NEVER STARTED QUARRY)
Industrial profile

Top NAICS codes

Industrial profile

Top ZIP codes

  • 80504
  • 80303
  • 80302
  • 80503
  • 80026-9656
  • 80026-9719
  • 80027-3067
  • 80301-1223
  • 80301-2334
  • 80301-2919
Air context

Highest PM2.5 dates

  • 2024-08-01
  • 2024-07-23
  • 2024-07-31
  • 2024-07-24
  • 2024-07-22
  • 2024-08-02
  • 2024-07-25
  • 2024-01-21
  • 2024-10-01
  • 2024-10-06
  • 2024-10-07
  • 2024-11-22
  • 2024-07-26
  • 2024-10-08
  • 2024-10-09
  • 2024-01-20
  • 2024-10-11
  • 2024-10-10
  • 2024-11-23
  • 2024-01-16
System synthesis

Stored model output

# 1. Executive screening summary

Boulder County reported an annual maximum AQI of 154, driven by ozone levels on July 24, 2024, and August 1, 2024. PM2.5 levels reached a maximum AQI of 123 on August 1, 2024. The county had 366 days of PM2.5 monitoring and 343 days of ozone monitoring. There were 1 unhealthy day and 9 days with unhealthy air for sensitive groups based on AQI thresholds.

# 2. Industrial profile

Boulder County has 38 facility candidates, with 30 distinct owners and 12 distinct NAICS codes. The top facility owners include "GOLDENS COMPANIES," "LAFARGE WEST, INC.," and "BOULDER CNTY PUBLIC WORKS." The top NAICS codes are 212321, 211130, and 213115. The most active zip code in terms of facility candidates is 80504, followed by 80303 and 80302.

# 3. PM2.5 and ozone signal

PM2.5 data show an annual average of 5.94 µg/m³, with 366 days of monitoring and 1,481 rows of data. Ozone data show an annual average of 0.03928 ppm, with 343 days of monitoring and 343 rows of data. The highest ozone AQI of 154 occurred on July 24, 2024, and August 1, 2024.

# 4. Highest PM2.5 dates

The highest PM2.5 AQI of 123 occurred on August 1, 2024, with an average arithmetic mean of 37.03 µg/m³. Other high PM2.5 days include July 23, 2024 (AQI 98), July 31, 2024 (AQI 90), July 24, 2024 (AQI 85), and July 22, 2024 (AQI 83).

# 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/smoke data, and lack of causal models or source apportionment.

# 6. What cannot be concluded

No conclusions can be drawn about causation, permit violations, enforcement priorities, compliance status, or health attribution. The evidence does not support these inferences.

# 7. Recommended next data pulls and policy addendum candidates

Additional data pulls should include facility-level emissions, structured permit violation records, hospitalization data, and wind/smoke data. Policy addendum candidates may focus on regional air quality management, monitoring siting improvements, and industrial activity assessments.
Audit metadata

Packet audit trail

Packet keycolorado_county:boulder:pm25_industry_overlap_2024
Geography nameBOULDER
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 at2026-07-07T08:20:12.608463+00:00
Created at2026-07-07 01:27:04.393205-06:00
Updated at2026-07-07 02:19:40.341326-06:00