Phase: Grading & Infrastructure

Installation of the new water main within the onsite portion of Carter Avenue is complete, and crews are preparing to tie the system in. The pre-construction meeting for the offsite Carter Avenue water work was held on August 10, and crews are mobilizing to begin later this week or early next, pending issuance of the encroachment permit. A pre-construction meeting with utility providers is scheduled for August 14 so that dry utility street crossings can be installed, followed by curb and paving on Carter Avenue. Where possible, the onsite and offsite portions of Carter Avenue will be constructed together to limit road closure duration and restore public access as quickly as possible.

Crews began back cuts for the eastern and northern retaining walls this week, and wall construction will begin Thursday, August 13. Once the eastern wall reaches a safe point, crews will begin trenching parallel to the wall, which is the first step toward removing the existing overhead power lines. A pre-construction meeting with Los Angeles County Public Works is also scheduled for Thursday, August 13, with work beginning shortly after.

The final phase of hauling activity began this week and is anticipated to be complete by the end of the week. The public will notice additional truck activity during this time. Additional water trucks and street sweepers are on site for the duration of this operation. Dust control measures and air quality monitoring remain ongoing, and no air quality alerts have been received this week.

Phase: Grading & Infrastructure

Wet utility installation within the in-tract portion of Carter Avenue is now approximately 90% complete, with only a few smaller tie-ins remaining. With the utility trenches backfilled, crews will begin back-cuts and construct the eastern and northern retaining walls next week.

A permit for the offsite water work along Carter Avenue has been issued, and a pre-construction meeting is scheduled for Monday, August 10. While this work is ongoing, Carter Avenue will close from the southern end of the project site to Lima Street. This closure will remain in place until all improvements are complete. Permits for the remaining offsite improvements—storm drain, paving, retaining walls, and sidewalk—are pending.  

Los Angeles County approved the required relocation plan for the existing storm drain located onsite within Sunnyside Avenue. A pre-construction meeting has been scheduled for August 13. 

A final phase of dirt hauling will begin on Tuesday, August 11, and continue through Friday, August 14. The public will notice increased truck traffic along approved haul routes during these four days. Flaggers and traffic control specialists have been hired to provide additional support and minimize traffic disruptions. 

Dust control measures and street sweeping continue at current levels. No air quality alerts were issued this week.

Phase: Grading & Infrastructure

Crews continued to focus on the installation of new water infrastructure within the onsite portion of Carter Ave. This work is anticipated to be complete by August 5th. Next week, crews will focus on preparing the eastern and northern retaining walls for construction. With water installation on Carter Ave. near completion, crews will then install dry utility street crossings, followed by paving. Offsite work on Carter Avenue is tentatively scheduled to begin on August 7th, pending final receipt of permits.

The final hauling phase of the grading operation is anticipated to begin next week on August 6th and will last approximately 4-5 days. The public will notice additional truck activity during this time. Additional crews have been hired to conduct traffic control and ensure that all trucks utilize the approved haul route.

Dust control measures remain in place. Similarly, street sweeping continues twice per week. Air quality monitoring is also ongoing. No air quality alerts were reported this week.

Phase: Grading & Infrastructure

New sewer and storm drain installations are now complete. Crews are completing the new water infrastructure along Carter Avenue. Work is anticipated to be complete this week. Once the water line within the in-tract portion of Carter Avenue is complete, retaining wall construction on the east side of the property will begin adjacent to the Bailey Canyon debris basin.  

Offsite improvements along Carter Avenue are anticipated to commence within the next two weeks. The scope of work includes road widening, sidewalk installation, water main replacement, and new retaining wall construction. This work will take approximately 6-8 weeks to complete.  

Dust control, street sweeping, and continuous air quality monitoring are ongoing. No air quality alerts were reported this week.

Phase: Grading & Infrastructure

This week crews completed construction of the onsite storm drain within the in-tract portion of Carter Ave. Trenching for the new water main in this same area has started. Installing this water main is anticipated within the next two weeks. Construction will then move to the northern and eastern retaining walls as well as street crossings and paving on Carter Ave. Off-site improvements along Carter Avenue are anticipated to begin in mid-August.

To achieve greater dust control during hot weather, the graded pads have been sprayed with a binding material and roped off. Water trucks continue to be used daily and street sweeping is occurring 2-3 times per week.

Air quality monitoring is ongoing. No air quality exceedances were reported this week.

Phase: Grading & Infrastructure

Construction of the new stormdrain along Carter Avenue within the project site has been completed. Work this week will include backfilling the completed storm drain and starting construction on the new water main. The water main construction will begin at the southern end of the project site and proceed northward to the retreat center. The retreat center tie-in to the new sewer system has been completed. The temporary sewer service to the retreat center has been removed. With the sewer tie-in complete, retaining wall construction will begin on the northern end of the project site.

Dust control measures, bi-weekly street sweeping, and continuous air quality monitoring are ongoing. No air quality exceedances were reported this week.

Week of June 29, 2026

Phase: Grading & Infrastructure

Grading activities continued this week, focusing on the ongoing installation of the new storm drain within Carter Avenue within the project site. Installation of the new wet utilities is approximately 80% complete and will continue for several more weeks.

Seasonal weed abatement and brush management work is underway. Crews started on the north side of the property adjacent to the retreat center and are working south. Crews anticipate completing all work by the end of next week.

Air quality monitoring, street sweeping, and dust control measures are ongoing. No air quality exceedances have been reported.

Offsite improvements along Carter Avenue are expected to begin by the end of July. Additional public notification will occur before construction begins.

Week of June 22, 2026

Phase: Grading & Infrastructure

Work over the past two weeks focused on installing wet utilities. New sewer infrastructure has been fully installed throughout the site, and an inspection is scheduled for 6/25. The temporary sewer line should be removed by 7/2. The new stormdrain is fully installed along the extension of Carter Avenue into the project site and work is beginning this week on the internal streets. The installation of new water main will commence after the stormdrain work is completed.

Dust control measures, continuous air quality monitoring, and twice-weekly street sweeping have continued. AQMD inspectors visited the site on 6/12 and found no violations.

Offsite improvements to Carter Avenue are anticipated to commence in the next six to eight weeks, slightly later than originally expected. Carter Avenue and Sunnyside Avenue will be paved upon completion of the onsite utility work. Paving is expected to occur in the fall.  

Week of June 15, 2026

Phase: Grading & Infrastructure

Onsite sewer work is now approximately 95% complete. Crews are now beginning to install the new onsite stormdrain system. Stormdrain construction is anticipated to occur over the next three weeks and will be the primary construction activity during this time. The water quality treatment system in the new public park is fully constructed, and the park area has been backfilled.

Dust control measures and air quality monitoring are ongoing. No air quality exceedances were issued this past week. Street sweeping is ongoing on Mondays and Wednesdays. 

Week of June 8, 2026

Phase: Grading & Infrastructure

Onsite sewer work is now approximately 95% complete. Crews are now beginning to install the new onsite stormdrain system. Stormdrain construction is anticipated to occur over the next three weeks and will be the primary construction activity during this time. The water quality treatment system in the new public park is fully constructed, and the park area has been backfilled.  

Dust control measures and air quality monitoring are ongoing. No air quality exceedances were issued this past week. Street sweeping is ongoing on Mondays and Wednesdays.

Week of June 1, 2026

Phase: Grading & Infrastructure

Construction activities this week have been focused on the installation of new sewer main and laterals. This new infrastructure will be completely installed within the next two weeks. Once the sewer is complete, work on the new stormdrain will commence. Additionally, construction of the new verdura wall systems is complete. Retaining wall construction will begin next week throughout the property. Rough grading is approximately 85% complete. Large grading equipment has been removed from the site. The public will see smaller equipment -- mostly loaders -- moving in and out of the site over the next few weeks.  

Dust control measures are ongoing, with water trucks operating during grading activities. Twice weekly street sweeping also continues. Continuous air quality monitoring resulted in no reported exceedances or alerts this week.

Week of May 25, 2026

Phase: Grading & Infrastructure

This week, construction crews focused on finalizing the trenching for wet utility installation and retaining walls across the site. The stormwater vault and treatment basin within the future public park were completed and backfill has been placed. This facility will treat and detain all onsite runoff. Retaining wall construction is anticipated to be completed next week. After the walls are complete, the public will see additional hauling and earth movement. 

Air quality monitoring is ongoing. On May 20, an air quality alert was issued due to smoke from the Burro Fire, which was burning approximately 13 miles east of the project site in the Angeles National Forest. This alert was issued between 6:54 a.m. and 7:20 a.m., before construction activities began on the property. During that time, northerly winds carried smoke toward the project site and air quality monitors. No other alerts were issued.

Twice weekly street sweeping and ongoing dust control measures have also continued. Offsite improvements along Carter Avenue are still anticipated to begin in July.

Week of May 18, 2026

Phase: Grading & Infrastructure

Grading operations continue across the site. This week's work focuses on installing and backfilling the stormwater quality detention and treatment facility located within the future public park. The vault system used to store treated stormwater is now in place. The installation of retaining walls along Sunnyside Avenue also continued this week. Trenching for wet utilities (sewer, water, and storm drain) also continued this week.  

Street sweeping twice a week, dust control via onsite water trucks, and air quality monitoring are all ongoing as planned. No air quality triggers were reported.

It is anticipated that the offsite work to improve and widen Carter Avenue will begin in July.

Week of May 11, 2026

Phase: Grading & Infrastructure

This week, construction activities have focused on retaining wall construction along Sunnyside Avenue. Most heavy grading equipment has moved off the site. The trenching work in support of new sewer infrastructure is approximately 75% complete, with additional utility installations occurring over the next 30 days. Once the sewer work is completed, storm drain and water infrastructure will follow. Two water trucks operate on site daily to ensure proper dust control. Street sweeping continues three days a week on Monday, Wednesday, and Friday. Continuous air quality monitoring is ongoing with no alerts reported. All trade partners have been reminded of required work hours and authorized haul routes.   

Week of May 4, 2026

Phase: Grading & Infrastructure

Grading activities continued across the site. Grading is approximately 85% complete. This week, most construction activities focused on retaining wall construction and trenching for wet utility infrastructure to support the installation of new water, sewer, and storm drain facilities.

Dust control measures, street sweeping, and continuous air quality monitoring are all ongoing.  No air quality exceedances were reported this week.

Week of April 27, 2026

Phase: Grading & Infrastructure

Grading activities continued across the site this week. Grading is now approximately 85% complete. Construction of retaining walls will re-commence next week and soil will be delivered to the site to support the wall construction. Residents may notice additional trucking activity on Sunnyside Avenue. Utility trenching for the sewer, water, and storm drain infrastructure also continued this week.  

Four water trucks are utilized throughout the day to ensure compliance with applicable dust regulations. Street sweeping continues on Monday, Wednesday, and Friday. Voluntary air monitoring also continues. Since project grading began, inspectors from the South Coast Air Quality Management District ("AQMD") have performed three site visits. The project complied with air quality standards; no exceedances were identified. No air quality exceedances were identified this week.  

Week of April 20, 2026

Phase: Grading & Infrastructure

Grading operations continued this week across the site. Grading is now approximately 80% complete. Retaining wall installation will resume next week with the construction of concrete masonry unit (CMU) block walls. Trenching continued this week to support the installation of new sewer, water, and storm drain facilities. Grading and utility trenching are anticipated to be completed in Fall of 2026.   

Erosion and dust control measures continue to be implemented daily to ensure compliance with applicable South Coast Air Quality Management District ("AQMD") regulations. Street sweeping continues to occur on Monday, Wednesday, and Friday.  

Voluntary air quality monitoring is ongoing. Air quality monitors are placed at multiple locations on the property to continuously analyze compliance with applicable air quality regulations.

Week of April 13, 2026

Phase: Grading & Infrastructure

Grading operations continued this week across the site. Grading is approximately 70% complete. Retaining wall construction also continued and will be ongoing for the next 1-2 weeks.  Work on the Carter Avenue sewer extension into the project site also continued.  The new sewer infrastructure is now just below the retreat center and Toll Brothers will turn to the internal streets next week. They anticipate starting work on the new storm drain system in the next few weeks.

Ongoing dust control measures continued this week. This includes four hours of street sweeping on Monday, Wednesday, and Friday to ensure the area's streets are clean. Toll Brothers also have two extra water trucks on site to minimize dust.

Voluntary air quality monitoring is also ongoing. Two monitors are set on the site's perimeter. These monitors continuously analyze air moving through and across the property for compliance with published standards set by the South Coast Air Quality Management District ("AQMD"). If an exceedance is detected, an alert is sent to Toll Brothers' environmental consultant and project team. There were no alerts this week.

Toll Brothers continue to reiterate allowable work hours to all their trade partners and have requested they avoid parking on public streets before daily work begins.