Particulate Monitoring

Particulate Matter Pollution

Particulate Matter, PM, or particle pollution, is a mixture of airborne solid particles and liquid droplets. Sources for PM can be both man-made and naturally occurring. Particles can also come directly from a single source, like a construction site or fire, or can be the result of complex chemical reactions among numerous sources, for example sulfur dioxide or nitrogen oxide. Examples of PM include dust, smoke, soot, fly ash, aerosols, fumes, mists, and condensing vapors. PM can be further defined by particle size. Very small particles having a diameter less than 2.5 micrometers, known as PM2.5, are potentially harmful to human health since small particles can be inhaled deep into the lungs.

Escambia County PM Monitoring

Escambia County regulates recovered materials processing facilities, recycling facilities, resource recovery facilities, and volume reduction plants under applicable regulations of the code of ordinances and the land development code. New recycling and other similar facilities are currently required to obtain an Escambia County permit from the Development Services Department in order to legally operate. Air monitoring for particulate matter pollution is a county permit requirement for all of these facilities.

The Escambia County Water Quality and Land Management Division routinely conducts air monitoring at permitted recycling facilities. Emission levels for PM2.5 are not permitted to exceed a one-time hourly average of 35 µg/m3 (micrograms per cubic meter of air) at the property line downwind of the facility. The Escambia County Water Quality and Land Management Division also collects a 10 minute upwind average for comparison. Noise level measurements are also taken at both the upwind and downwind sampling locations. The criteria for the maximum permissible sound level for the facilities can be found in LDC Chapter 5, Article 9, Section 5-9.2. Escambia County uses a handheld Dustrak DRX manufactured by TSI Instruments to perform the particulate monitoring and a calibrated multifunctional sound level meter for noise level monitoring.

Escambia County Particulate Monitoring Data

Click each site for more information.

American Concrete Supply20 E Quintette Rd

Permit Number: 06090582

Permit Type: Temporary

Date	Up/Downwind	Avg Noise Level (dB)	Hourly Avg PM2.5 (μg/m3)
6/4/2020	Upwind	53.9	18
6/4/2020	Downwind	52.7	15
6/27/2018	Upwind	58.6	18
6/27/2018	Downwind	58	14

Delta Contractors7480 N. Palafox

Permit Number: 160200022

Permit Type: Permit

Permit Specifies an Hourly Average PM2.5 of < 35 μg/m3

Date	Up/Downwind	Avg Noise Level (dB)	Hourly Avg PM2.5 (μg/m3)
3/15/2023	Upwind	62.5	12
3/15/2023	Downwind	58.8	12
1/30/2023	Upwind	63.9	16
1/30/2023	Downwind	62.7	17
12/15/2022	Upwind	58.4	4
12/15/2022	Downwind	53	5
10/26/2022	Upwind	63.4	1
10/26/2022	Downwind		4
9/19/2022	Upwind	63.6	11
9/19/2022	Downwind	53.1	15
7/27/2022	Upwind	63	4
7/27/2022	Downwind	60.5	9
6/27/2022	Upwind	63.2	14
6/27/2022	Downwind	63.0	17
4/19/2022	Downwind	55.6	5
4/19/2022	Upwind	66	7
3/16/2022	Upwind	66.2	15
3/16/2022	Downwind	62.9	18
2/9/2022	Upwind	63.1	3
2/9/2022	Downwind	55.6	4
1/27/2022	Upwind	63.2	41
1/27/2022	Downwind		45
12/14/2021	Upwind	61.3	21
12/14/2021	Downwind	62	34
11/4/2021	Upwind	64.2	33
11/4/2021	Downwind	57.7	32
9/22/2021	Upwind	66	12
9/22/2021	Downwind	56.3	15
9/9/2021	Upwind	66.4	37
9/9/2021	Downwind	56.2	41
8/5/2021	Upwind	66.8	24
8/5/2021	Downwind	56.5	26
8/4/2021	Upwind	64.1	34
8/4/2021	Downwind	53.5	43
6/29/2021	Upwind	60.1	8
6/29/2021	Downwind	62.7	2
5/13/2021	Upwind	62.6	11
5/13/2021	Downwind	57.5	14
3/30/2021	Downwind	58.7	19
3/30/2021	Upwind	54	10
2/1/2021	Upwind	67	12
2/1/2021	Downwind	59.4	10
12/1/2020	Upwind	63.5	3
12/1/2020	Downwind	55.4	5
10/26/2020	Upwind	64.5	8
10/26/2020	Downwind	62.7	9
9/10/2020	Upwind	63.7	14
9/10/2020	Downwind	53.8	17
8/11/2020	Upwind	61.8	27
8/11/2020	Downwind	57	25
6/30/2020	Upwind	64.4	24
6/30/2020	Downwind	58.4	15
4/15/2020	Downwind	57.2	9
4/15/2020	Upwind	64.8	8
2/27/2020	Upwind	66	7
2/27/2020	Downwind	59	7
1/6/2020	Downwind	56.9	13
1/6/2020	Upwind	66.1	21
11/6/2019	Downwind	58.2	27
11/6/2019	Upwind	64	28
9/12/2019	Downwind	63.2	43
9/12/2019	Downwind	66	47
9/12/2019	Upwind	57.9	25
8/8/2019	Upwind	62.8	13
8/8/2019	Downwind	56.7	19
7/15/2019	Upwind	58.3	14
7/15/2019	Downwind	60.2	20
5/28/2019	Downwind	57	18
5/28/2019	Upwind	54.8	16
3/13/2019	Upwind	60.6	17
3/13/2019	Downwind	62.1	52
12/12/2018	Upwind	62.5	16
12/12/2018	Downwind	62	22
10/15/2018	Upwind	57.2	14
10/15/2018	Downwind	63.3	24
10/8/2018	Upwind	60.8	12
10/8/2018	Downwind	61.5	53
6/11/2018	Upwind	60	10
6/11/2018	Downwind	54.5	8
2/6/2018	Upwind	57.1	15
2/6/2018	Downwind	56.3	15
12/12/2017	Upwind	64.2	14
12/12/2017	Downwind	59	13
9/28/2017	Downwind	55.7	24
7/20/2017	Downwind	54.2	19
3/29/2017	Downwind		12
11/17/2016	Downwind		22
8/3/2016	Downwind		20
5/11/2016	Downwind		3

10/8/2018: Initial monitoring above PM2.5 limit. Corrective actions taken by facility. Post corrective action monitoring performed 10/15/2018 was below PM2.5 limit.

9/12/2019: Initial monitoring above PM2.5 limit. Site operator was immediately notified. A second sample was collected after corrective actions were taken. Both results were above the PM2.5 limit.

8/4/2021: Initial monitoring above PM2.5 limit. The site was resampled the following day and the result was below the PM2.5 limit.

9/9/2021: Both downwind and upwind samples exceeded PM2.5 limit.

1/27/2022: Both downwind and upwind samples exceeded PM2.5 limit.

Delta Contractors175 Burgess Rd

Permit Number: 22114827PSP

Permit Type: Permit

Date	Up/Downwind	Avg Noise Level (dB)	Hourly Avg PM2.5 (μg/m3)

Eager Beaver Professional Tree Care2170 Longleaf Dr

Permit Number: 160300030

Permit Type: Permit

Permit Specifies an Hourly Average PM2.5 of < 35 μg/m3

Date	Up/Downwind	Avg Noise Level (dB)	Hourly Avg PM2.5 (μg/m3)
3/27/2024	Upwind	57.2	10
3/27/2024	Downwind	51.8	8
1/30/2024	Downwind	56.3	5
1/30/2024	Upwind	61.0	5
11/29/2023	Downwind	49.2	6
11/29/2023	Upwind	54.5	7
10/10/2023	Downwind	52.5	9
10/10/2023	Upwind	58.5	11
9/20/2023	Downwind	53.6	31
9/20/2023	Upwind	53.7	31
6/7/2023	Downwind	53.0	17
6/7/2023	Upwind	59.7	12
4/20/2023	Downwind	52.0	12
4/20/2023	Upwind	55.5	19
3/16/2023	Downwind	51.4	13
3/16/2023	Upwind	56.9	26
1/25/2023	Downwind	52.7	7
1/25/2023	Upwind	58.9	6
12/15/2022	Downwind	59.2	4
12/15/2022	Upwind	53.6	3
10/24/2022	Downwind	47.1	10
10/24/2022	Upwind	55.6	11
9/14/2022	Upwind	53.6	6
9/14/2022	Downwind	52.2	7
7/26/2022	Downwind	52.8	3
7/26/2022	Upwind	57.7	3
6/6/2022	Upwind	56.6	11
6/6/2022	Upwind	53.9	8
4/27/2022	Downwind	49.9	4
4/27/2022	Upwind	53.7	4
3/17/2022	Upwind	55.3	15
3/17/2022	Downwind	54.4	17
1/31/2022	Downwind		7
1/31/2022	Upwind	56.8	6
12/16/2021	Downwind		15
12/16/2021	Upwind	75	16
11/1/2021	Upwind	56.6	11
11/1/2021	Downwind	57.3	13
9/7/2021	Downwind	52.4	2
9/7/2021	Upwind	60.1	2
7/13/2021	Upwind	57.9	6
7/13/2021	Downwind	49.5	6
6/28/2021	Upwind	64.4	11
6/28/2021	Downwind	50.2	10
5/6/2021	Upwind	55.3	7
5/6/2021	Downwind	53.2	8
3/29/2021	Upwind	46.1	10
3/29/2021	Downwind	38.7	7
2/8/2021	Downwind	47.9	7
2/8/2021	Upwind	57.9	6
12/28/2020	Upwind	50.7	3
12/28/2020	Downwind	48	4
10/21/2020	Upwind	56.2	9
10/21/2020	Downwind	57.2	12
9/3/2020	Upwind	57.9	30
9/3/2020	Downwind	55.1	31
7/20/2020	Upwind	65.8	5
7/20/2020	Downwind	51.7	5
5/13/2020	Upwind	55.1	17
5/13/2020	Downwind	52.7	20
3/17/2020	Upwind	54.5	19
3/17/2020	Downwind	55.1	23
1/9/2020	Upwind	61.3	13
1/9/2020	Downwind	58.7	17
11/21/2019	Upwind	57.4	21
11/21/2019	Downwind	54.2	28
9/18/2019	Upwind	53.2	21
9/18/2019	Downwind	50.5	24
7/9/2019	Downwind	43.6	21
7/9/2019	Upwind	47	25
3/20/2019	Upwind	55.6	27
3/20/2019	Downwind	51.9	25
12/4/2018	Upwind	52.6	7
12/4/2018	Downwind	57	8

J&M Dozer3300 Godwin Lane

Permit Number: 160400058

Permit Type: Permit

Permit Specifies an Hourly Average PM2.5 of < 35 μg/m3

Date	Up/Downwind	Avg Noise Level (dB)	Hourly Avg PM2.5 (μg/m3)
3/25/2024	Downwind	55.0	25
3/25/2024	Upwind	60.6	22
1/31/2024	Upwind	55.1	5
1/31/2024	Downwind	55.8	8
11/30/2023	Upwind	60.1	31
11/30/2023	Downwind	54.9	30
10/16/2023	Upwind	56.3	4
10/16/2023	Downwind	47.9	6
9/19/2023	Downwind	53.3	24
9/19/2023	Upwind	55.0	30
8/1/2023	Upwind	57.6	52
8/1/2023	Downwind	53.3	20
6/12/2023	Upwind	54.6	13
6/12/2023	Downwind	50.9	21
4/19/2023	Upwind	50.9	19
4/19/2023	Downwind	45.3	22
3/16/2023	Upwind	56.2	12
3/16/2023	Downwind	52.1	20
1/17/2023	Upwind	58.1	9
1/17/2023	Downwind	57.0	74
12/19/2022	Upwind	58.1	9
12/19/2022	Downwind	53.2	8
10/19/2022	Upwind	54.4	12
10/19/2022	Downwind	56.7	23
9/13/2022	Upwind	51	14
9/13/2022	Downwind	52.3	14
7/27/2022	Upwind	54	6
7/27/2022	Downwind	50.1	10
6/7/2022	Upwind	58.5	11
6/7/2022	Downwind	54.4	12
4/19/2022	Upwind	51.9	4
4/19/2022	Downwind	51.3	7
3/10/2022	Upwind	56.7	16
3/10/2022	Downwind	56.2	15
2/1/2022	Upwind	59.1	7
2/1/2022	Downwind	54.7	12
12/21/2021	Upwind	49.4	21
12/21/2021	Downwind	58.1	17
10/27/2021	Upwind	60.4	12
10/27/2021	Downwind	58.5	23
9/20/2021	Upwind	54.7	3
9/20/2021	Downwind	57	3
8/10/2021	Upwind	55.6	14
8/10/2021	Downwind	53.6	13
7/1/2021	Downwind	55.5	1
7/1/2021	Upwind	57	2
5/19/2021	Upwind	60.5	8
5/19/2021	Downwind	58	12
3/30/2021	Downwind	49.7	30
3/30/2021	Upwind	51.7	16
2/4/2021	Upwind	60.8	8
2/4/2021	Downwind	60.9	7
12/10/2020	Upwind	55.1	10
12/10/2020	Downwind	47.3	12
10/15/2020	Upwind	54.5	26
10/15/2020	Downwind	56.6	28
9/1/2020	Upwind	51.6	22
9/1/2020	Downwind	53	25
8/3/2020	Upwind	54.7	25
8/3/2020	Downwind	53.6	26
6/15/2020	Upwind	44.4	15
6/15/2020	Downwind	47.7	20
4/2/2020	Upwind	59.6	8
4/2/2020	Downwind	57.3	8
3/16/2020	Upwind	56.6	33
3/16/2020	Downwind	54.3	31
1/7/2020	Downwind	58.8	9
1/7/2020	Upwind	55.3	7
11/6/2019	Downwind	48.6	22
11/6/2019	Upwind	48.9	21
9/11/2019	Upwind	51	20
9/11/2019	Downwind	49.5	24
8/1/2019	Downwind	56.6	10
8/1/2019	Upwind	54.4	13
6/11/2019	Upwind	53.6	24
6/11/2019	Downwind	51.5	25
5/30/2019	Upwind	45	14
5/30/2019	Downwind	46.3	17
1/24/2019	Downwind	57	11
1/24/2019	Upwind	60.7	8
12/26/2018	Upwind	57.2	12
12/26/2018	Downwind	55	12
9/12/2018	Upwind	54.8	6
9/12/2018	Downwind	55.3	8
6/26/2018	Upwind	47.3	12
6/26/2018	Downwind	48.6	12
1/25/2018	Upwind	51.8	5
1/25/2018	Downwind	49.7	8
12/21/2017	Downwind	61.3	12
12/21/2017	Downwind	49	10
12/21/2017	Upwind	66.7	12
12/21/2017	Downwind	64.9	47
9/25/2017	Downwind	55.4	13
5/3/2017	Downwind		7
3/27/2017	Downwind		9
12/7/2016	Downwind		15
8/22/2016	Downwind		23

Facility was formerly known as Bellview Site Contractors

12/21/2017: Initial monitoring above PM2.5 limit. Corrective actions taken by facility. Post corrective action monitoring performed the same day was below PM2.5 limit.

McDirt Industries5570 Bellview Ave

Permit Number: 160400052

Permit Type: Permit

Permit Specifies an Hourly Average PM2.5 of < 35 μg/m3

Date	Up/Downwind	Avg Noise Level (dB)	Hourly Avg PM2.5 (μg/m3)
3/27/2024	Upwind	53.5	7
3/27/2024	Downwind	56.2	12
1/31/2024	Upwind	53.7	5
1/31/2024	Downwind	52.5	16
11/30/2023	Downwind	56.9	26
11/30/2023	Upwind	55.1	33
10/16/2023	Downwind	50.2	13
10/16/2023	Upwind	49.6	4
9/18/2023	Upwind	54.3	20
9/18/2023	Downwind	52.2	27
8/1/2023	Downwind	52.8	20
8/1/2023	Upwind	63.7	22
6/8/2023	Upwind	55.3	69
6/8/2023	Downwind	49.9	35
4/19/2023	Upwind	55.1	18
4/19/2023	Downwind	51.5	19
3/14/2023	Downwind	52.2	22
3/14/2023	Upwind	57.8	11
1/24/2023	Upwind	57.6	14
1/24/2023	Downwind	56.3	12
12/19/2022	Downwind	57.1	21
12/19/2022	Upwind	50.5	8
10/19/2022	Upwind	54.4	4
10/19/2022	Downwind	52.7	23
9/13/2022	Upwind	51.6	6
9/13/2022	Downwind	51.4	10
7/27/2022	Upwind	56	5
7/27/2022	Downwind	51.5	9
6/7/2022	Downwind	51.1	9
6/7/2022	Upwind	52.0	10
4/19/2022	Downwind	55.2	19
4/19/2022	Upwind	54.8	5
3/10/2022	Downwind	54.8	9
3/10/2022	Upwind	52.6	7
1/27/2022	Downwind	55.7	23
1/27/2022	Upwind	54.5	25
12/21/2021	Downwind	43	21
12/21/2021	Upwind	52.1	17
11/1/2021	Upwind	57.9	11
11/1/2021	Downwind	51.6	21
9/9/2021	Downwind	52.8	31
9/9/2021	Upwind	53.7	29
8/5/2021	Upwind	58.3	22
8/5/2021	Downwind	54.1	34
6/29/2021	Upwind	56.5	2
6/29/2021	Downwind	54.9	22
5/27/2021	Upwind	58	12
5/27/2021	Downwind	49.2	26
4/21/2021	Upwind	55	13
4/21/2021	Downwind	56	16
1/29/2021	Upwind	61.4	7
1/29/2021	Downwind	58.1	15
12/10/2020	Upwind	60.3	10
12/10/2020	Downwind	59.4	20
10/26/2020	Upwind	55.6	11
10/26/2020	Downwind	53.8	19
9/10/2020	Upwind	44.2	30
9/10/2020	Downwind	49.9	14
8/6/2020	Upwind	54.3	33
8/6/2020	Downwind	52.9	35
6/30/2020	Upwind	56.6	13
6/30/2020	Downwind	52.7	33
5/7/2020	Downwind	51.7	17
5/7/2020	Upwind	58.4	6
3/17/2020	Upwind	55.1	20
3/17/2020	Downwind	53.2	19
1/21/2020	Upwind	65.3	20
1/21/2020	Downwind	62.1	25
12/19/2019	Upwind	56.4	2
12/19/2019	Downwind	51.5	7
11/6/2019	Downwind	53.6	29
11/6/2019	Upwind	61.8	46
8/29/2019	Downwind	51.2	11
8/29/2019	Upwind	55.3	13
7/25/2019	Upwind	60	16
7/25/2019	Downwind	51.1	20
5/30/2019	Upwind	51.5	16
5/30/2019	Downwind	55.2	28
3/19/2019	Upwind	54	9
3/19/2019	Downwind	51.6	12
1/7/2019	Upwind	53.3	4
1/7/2019	Downwind	63.4	17
7/30/2018	Downwind	48.6	31
7/30/2018	Downwind	48.8	36
7/30/2018	Upwind	46.5	35
6/14/2018	Upwind	56	10
6/14/2018	Downwind	51.4	8
3/12/2018	Downwind	49.6	9
12/11/2017	Upwind	53.3	8
12/11/2017	Downwind	55.4	10
9/25/2017	Downwind	49.8	10
7/20/2017	Downwind		20
3/16/2017	Downwind		8

7/30/2018: There was potential dust influent from smoke upwind of the facility. As a result PM numbers were elevated.

11/6/2019: Upwind background sample elevated, inference suspected. Downwind sample below the PM2.5 limit.

Perdido Landfill13452-13514 Beulah Rd

Permit Number: 170600092

Permit Type: Permit

Permit Specifies an Hourly Average PM2.5 of < 35 μg/m3

Date	Up/Downwind	Avg Noise Level (dB)	Hourly Avg PM2.5 (μg/m3)
3/14/2024	Upwind	56.8	22
3/14/2024	Downwind	56.8	11
1/29/2024	Upwind	56.3	3
1/29/2024	Downwind	57.9	11
11/28/2023	Upwind	49.9	5
11/28/2023	Downwind	49.4	5
10/9/2023	Upwind	55.9	6
10/9/2023	Downwind	52.9	6
9/6/2023	Upwind	59.4	32
9/6/2023	Downwind	51.4	18
8/1/2023	Upwind	58.8	22
8/1/2023	Downwind	55.4	26
6/6/2023	Upwind	57.6	40
6/6/2023	Downwind	52.0	22
4/18/2023	Upwind	52.4	21
4/18/2023	Downwind	54.3	15
3/15/2023	Upwind	58.1	5
3/15/2023	Downwind	52	5
1/19/2023	Upwind	56.1	8
1/19/2023	Downwind	56.9	17
12/8/2022	Upwind	51.8	9
12/8/2022	Downwind	53.6	11
10/17/2022	Upwind	58.4	29
10/17/2022	Downwind	53	31
9/19/2022	Downwind	52.8	16
9/19/2022	Upwind	60.1	15
7/28/2022	Upwind	56.8	5
7/28/2022	Downwind	55.4	5
6/8/2022	Upwind	53.6	4
6/8/2022	Downwind	56.3	5
4/18/2022	Upwind	53.5	12
4/18/2022	Downwind	58	11
3/14/2022	Upwind	56	8
3/14/2022	Downwind	52	14
2/1/2022	Downwind		8
2/1/2022	Upwind	59.5	8
12/16/2021	Upwind	58.8	35
12/16/2021	Downwind	55.3	15
10/12/2021	Upwind	59.2	6
10/12/2021	Downwind	50	9
8/31/2021	Upwind	57.5	10
8/31/2021	Downwind	57.2	10
7/30/2021	Upwind	58.6	32
7/30/2021	Downwind	51.3	32
6/28/2021	Upwind	58.1	12
6/28/2021	Downwind	51.8	9
5/12/2021	Upwind	56.8	1
5/12/2021	Downwind	51.8	1
3/25/2021	Upwind	58.4	36
3/25/2021	Downwind	51.7	35
2/3/2021	Upwind	56.3	13
2/3/2021	Downwind	62.6	23
12/1/2020	Upwind	51.3	15
12/1/2020	Downwind	51.1	12
10/15/2020	Upwind	60.1	30
10/15/2020	Downwind	52.9	24
9/1/2020	Upwind	58.3	18
9/1/2020	Downwind	51.7	20
7/16/2020	Upwind	63.4	32
7/16/2020	Downwind	50.8	13
4/16/2020	Upwind	61.6	17
4/16/2020	Downwind	58.6	10
3/16/2020	Upwind	59.1	27
3/16/2020	Downwind	51.6	31
1/28/2020	Upwind	60.6	10
1/28/2020	Downwind	56.7	8
11/25/2019	Upwind	57.3	18
11/25/2019	Downwind	51.9	9
10/3/2019	Upwind	57.2	27
10/3/2019	Downwind	52.8	24
8/15/2019	Upwind	58.5	22
8/15/2019	Downwind	50.1	21
7/8/2019	Downwind	58	16
7/8/2019	Upwind	46.6	13
5/29/2019	Upwind	52.9	17
5/29/2019	Upwind	58.1	24
5/29/2019	Downwind	49.3	15
3/27/2019	Upwind	54.6	19
3/27/2019	Downwind	51.8	20
12/26/2018	Upwind	57.4	19
12/26/2018	Downwind	55.9	14
10/15/2018	Downwind	49.5	12
10/15/2018	Upwind	55.5	12

3/25/2021: Upwind background sample elevated, interference suspected. Downwind sample below the PM2.5 limit.

Ready Mix USA3008 Hwy 95A South

Permit Number:

Permit Type: Temporary

Permit Specifies an Hourly Average PM2.5 of < 35 μg/m3

Date	Up/Downwind	Avg Noise Level (dB)	Hourly Avg PM2.5 (μg/m3)
4/16/2018	Upwind	64.9	6
4/16/2018	Downwind	56.2	11

SPC128 Airport Blvd

Permit Number:

Permit Type: Temporary

Date	Up/Downwind	Avg Noise Level (dB)	Hourly Avg PM2.5 (μg/m3)
7/25/2022	Upwind	64.3	2
7/25/2022	Downwind	60.6	5

Sunbelt Crushing2390 Longleaf Dr

Permit Number: 15000136

Permit Type: Permit

Permit Specifies an Hourly Average PM2.5 of < 35 μg/m3

Date	Up/Downwind	Avg Noise Level (dB)	Hourly Avg PM2.5 (μg/m3)
3/27/2024	Upwind	58.1	10
3/27/2024		57.4	10
1/30/2024	Upwind	61.0	5
1/30/2024	Downwind	57.3	5
11/29/2023	Upwind	52.0	9
11/29/2023	Downwind	55.7	8
10/10/2023	Upwind	58.5	11
10/10/2023	Downwind	58.4	16
9/20/2023	Downwind	57.5	35
9/20/2023	Upwind	53.7	33
6/7/2023	Upwind	59.7	12
6/7/2023	Downwind	53.8	12
4/20/2023	Upwind	57.7	17
4/20/2023	Downwind	57.5	15
3/16/2023	Upwind	54.8	35
3/16/2023	Downwind	52.4	21
1/25/2023	Upwind	58.4	7
1/25/2023	Downwind	58.5	6
12/15/2022	Upwind	58.4	4
12/15/2022	Downwind	42.9	4
10/24/2022	Upwind	54.6	15
10/24/2022	Downwind	55.4	14
9/14/2022	Upwind	55.7	9
9/14/2022	Downwind	54.2	12
7/26/2022	Upwind	55.8	16
7/26/2022	Downwind	51.6	9
6/6/2022	Upwind	58.3	9
6/6/2022	Downwind	48.8	12
4/27/2022	Upwind	55.2	8
4/27/2022	Downwind	57.2	9
3/17/2022	Upwind	63	12
3/17/2022	Downwind		12
1/31/2022	Upwind	57.9	7
1/31/2022	Downwind	57.4	5
12/21/2021	Upwind	57.2	17
12/21/2021	Downwind	59.7	16
12/16/2021	Upwind	55.4	16
12/16/2021	Downwind	55.3	19
11/1/2021	Upwind	59.1	15
11/1/2021	Downwind	57.7	21
9/7/2021	Downwind	56.9	2
9/7/2021	Upwind	58.9	34
8/5/2021	Upwind	57.2	15
8/5/2021	Downwind	56.4	19
6/28/2021	Upwind	59.3	12
6/28/2021	Downwind	52.8	9
5/13/2021	Upwind	60.2	5
5/13/2021	Downwind	57	7
3/29/2021	Downwind	47.5	2
3/29/2021	Downwind	50.6	8
2/8/2021	Upwind	59.9	6
2/8/2021	Downwind	52.2	6
12/28/2020	Upwind	55.5	1
12/28/2020	Downwind	51.8	2
10/20/2020	Downwind	57.7	8
10/20/2020	Upwind	58	12
9/10/2020	Downwind	55.5	11
9/10/2020	Upwind	60.4	15
8/10/2020	Upwind	60.8	23
8/10/2020	Downwind	53	11
8/6/2020	Downwind	52	37
8/6/2020	Upwind	57.1	35
6/18/2020	Upwind	57.1	30
6/18/2020	Downwind	53.1	20
4/14/2020	Upwind	63.2	18
4/14/2020	Downwind	59.2	33
3/2/2020	Upwind	58.3	15
3/2/2020	Downwind	57.9	14
1/8/2020	Upwind	59.2	8
1/8/2020	Downwind	56.9	8
11/21/2019	Downwind	53.5	21
11/21/2019	Upwind	56.7	36
9/16/2019	Upwind	63.9	17
9/16/2019	Downwind	63.5	13
8/27/2019	Downwind	55.8	9
8/27/2019	Upwind	60.6	14
7/3/2019	Downwind	53.4	25
7/3/2019	Upwind	59.8	22
5/23/2019	Upwind	64.3	13
5/23/2019	Downwind	62.8	21
4/10/2019	Upwind	48	9
4/10/2019	Downwind	50.9	9
3/13/2019	Downwind	52.8	22
3/13/2019	Upwind	57	18
12/4/2018	Upwind	60.6	9
12/4/2018	Downwind	57	13
9/18/2018	Upwind	49.6	18
9/18/2018	Downwind	53.7	18
6/4/2018	Downwind	64.3	24
6/4/2018	Upwind	61.7	16
4/5/2018	Upwind	52.1	5
4/5/2018	Downwind	53.6	8
11/2/2017	Upwind	63.9	8
11/2/2017	Downwind	50.9	7
10/30/2017	Downwind	51.9	10
10/17/2017	Downwind	53.3	29
9/11/2017	Downwind	62.3	30
9/7/2017	Downwind	55.4	16
7/31/2017	Downwind	51	6
5/16/2017	Downwind		17
3/27/2017	Downwind		9
12/15/2016	Downwind		32
11/17/2016	Downwind		21
9/2/2016	Downwind		31
8/15/2016	Downwind		9
6/7/2016	Downwind		30
5/23/2016	Downwind		12

11/21/2019: Upwind background sample elevated, interference suspected. Downwind sample below the PM2.5 limit.

8/6/2020: High background result, consistent with other sites sampled that day.

Thomas Homes3040 Highway 95A

Permit Number:

Permit Type: Temporary

Permit Specifies an Hourly Average PM2.5 of < 35 μg/m3

Date	Up/Downwind	Avg Noise Level (dB)	Hourly Avg PM2.5 (μg/m3)
1/28/2021	Downwind	57	12
1/28/2021	Upwind	62.4	16
1/20/2021	Downwind	58.7	69
1/20/2021	Upwind	60.4	23
1/20/2021	Downwind	57.9	44

1/20/2021: Initial monitoring above PM2.5 limit. Site operator was immediately notified. A second sample was collected after corrective actions were taken. Both results were above the PM2.5 limit. Follow-up monitoring was performed 1/28/2021. The result was below the PM2.5.

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