Alert Center

July 26 - High Particulate Matter Readings

The current high and sustained Particulate Matter (PM) 10 and PM 2.5 readings which began in the afternoon on July 25 at the Boulder AIR ECC monitoring station are being investigated.

At this time, Boulder AIR experts suspect that the readings are an...

July 32 - Methane Detection: BoulderAIR ECC Air Station

The BoulderAIR ECC Station detected peak methane concentrations of 5,328 ppb on July 23, 2022 at approximately 12:07 a.m. The plume was detected for approximately 30 minutes beginning at 11:40 p.m. on July 22.

Since exposure to methane in the...

June 27 - Air Quality Detection: BoulderAIR ECC Station

The BoulderAIR ECC station detected peak methane concentrations of 5,293 ppb on June 27 at approximately 12:40 a.m. The plume was detected beginning at 7:30 p.m. on Sunday, June 26.

Since exposure to methane in the environment is not known to cause any...

June 22 - Air Quality Detection: BoulderAIR ECC Station

The BoulderAIR ECC station detected peak methane concentrations of 11,118 ppb on June 22, 2022 at approximately 9:10 p.m. The plume was detected for approximately one hour beginning at 8:30 p.m.

Since exposure to methane in the environment is not known...

May 19 - BoulderAIR ECC Station Methane Detection

The plume was detected for approximately 5 hours beginning at 3:30 am. Since exposure to methane in the environment is not known to cause any adverse health effects, there are no established Heath Guideline Values associated with methane, though it is a...

May 1 - Preliminary Air Quality Report - Ajax Kenosha Farms

The Preliminary Air Quality Report for the May 1, 2022 triggered canister at the Ajax Kenosha Farms Air Monitoring Station is available at https://trello.com/c/ttJsu6sr. Canister analysis shows continued evidence for a valid TVOC emission source...

May 18 - Repair and Maintenance to Ajax Landfill South Air Monitoring Station

Recent canister triggering events between the dates of April 28 and May 18 at the Landfill South Station was likely due to a mechanical malfunction with the individual sensor unit. This specific station was installed due to an upgrade process that...

May 8 - BoulderAIR ECC Station Fuel Detection

The ECC VOC plume event detected on May 8th at 6:05 a.m. shows a chemical signature that suggests that the plume originated from a release of liquid petroleum hydrocarbon fuel, such as gasoline or diesel fumes. During the peak, natural gas tracers, e.g....

April 3 - BoulderAIR ECC Station Methane Detection

The plume was detected for approximately 25 minutes and the elevated methane was not accompanied by other Volatile Organic Compounds (VOCs) measured. Colorado Department of Public Health & Environment (CDPHE) has been notified of the event.

Additional...

March 24 - Reports Available on Ajax Dashboard

Reports are for: Landfill North (March 2), Kenosha Farms (March 2), Landfill Northeast (March 4), Landfill South (March 4), Landfill Northeast (March 8), and Landfill Northeast (March 8). These full, completed reports are now available for viewing on the...

March 14 - Erie Landfill Northeast & North

The event at the Landfill Northeast station is part of a period of sustained elevated readings, which are being assessed to determine whether the readings are a result of instrument sensor signal shift, or an actual elevation in VOCs in the area.

The...

March 10 Follow-Up: Landfill Northeast Station

This judgement can be difficult, as the sensor on the station is responding to levels over 900 VOCs, but the CSU laboratory is only measuring ~50 in the canister. There is a possibility that real VOCs are being detected, but aren’t able to be collected or...

March 8 - Erie Landfill Northeast

This represents the third triggering event at this station in as many weeks and analysis from contracted atmospheric experts has been requested.

Additional information, including analysis of the canister, will follow as it becomes available. Analysis...

Coal Creek Channel Restoration & Trail Closure- Nov. 27, 2023

Beginning Nov. 27, significant improvements to the conveyance of Coal Creek will kick off as part of the ongoing Coal Creek Channel Restoration project.

Beginning Nov. 27, significant improvements to the conveyance of Coal Creek will kick off as part of the ongoing Coal Creek Channel Restoration project. This project is divided into two reaches, with Reach 3 near Erie Village currently under construction...

Intersection improvement project at State Hwy 7 & 119th Street - Nov. 6, 2023

As of Monday, Nov. 6, the much-anticipated intersection improvement project at State Hwy 7 & 119th Street is officially underway.

As of Monday, Nov. 6, the much-anticipated intersection improvement project at State Hwy 7 & 119th Street is officially underway. Residents will notice traffic control installations guiding the flow as construction teams dive into their tasks, including...

Irrigation ditch work on N. 119th Street Near Rex Ranch - Nov. 6, 2023

Beginning Nov. 6, JOC Construction will be converting an existing open channel irrigation ditch into a piped irrigation system on N. 119th Street near the Rex Ranch Development.

Beginning Nov. 6, JOC Construction will be converting an existing open channel irrigation ditch into a piped irrigation system on N. 119th Street near the Rex Ranch Development. Residents and drivers in the area should expect partial lane closures for the...

119 and Erie Parkway Turn Lane Correction - Oct. 30

Concrete and asphalt repairs at the roundabout located at the Southeast corner of 119th St. & Erie Parkway.

Starting on October 30 and extending until December 31 (weather permitting), the Town of Erie Public Works Department will be optimizing and repairing concrete and asphalt at the roundabout located at the Southeast corner of the intersection of 119th St....

Waterline work on WCR5 - Monday, October 16, 2023

Starting Monday, Oct. 16, WWClyde, contractor for the Sunset development project, will begin waterline work on Weld County Road 5 (WCR5). This phase of the project will continue until the end of October.

Starting Monday, Oct. 16, 2023, WWClyde, contractor for the Sunset development project, will begin waterline work on Weld County Road 5 (WCR5). This phase of the project will continue until the end of October.

Immediately following the completion of...

Waterline Installation on WCR 5 - Oct. 2 - Dec. 15, 2023

Beginning Oct. 2 through Dec. 15, 2023, HEI Civil, contracted by Southern Land Company, will install a new water line on WCR5 to supply water to the upcoming Westerly and Sunset developments.

Beginning Oct. 2 through Dec. 15, 2023, HEI Civil, contracted by Southern Land Company, will install a new water line on WCR5 to supply water to the upcoming Westerly and Sunset developments. Message Boards have been installed on WCR5 to inform motorists...

TRAILS REMAIN CLOSED: Erie Singletrack Trails

The Erie Singletrack Trails remain closed as of Monday, Dec. 4. For the integrity of the trail system, please observe posted closure notifications and do not ride trails until they have cleared of snow and reopened.

The next notification will be sent...

TRAILS REMAIN CLOSED: Erie Singletrack Trails

The Erie Singletrack Trails remain closed at of Friday, Dec. 1. The trails will remain closed through the weekend and staff will check conditions again on Monday morning.

For your safety and to preserve the integrity of the trails, please continue to...