2020 Construction Monitoring

Environmental monitoring for the 2020 construction includes water and air monitoring. Air monitoring is being performed around the secure landfill, Route 131 Staging Area, and dredge area. Water monitoring is being performed in the river and at water intakes. These monitoring activities and results are summarized below.

 

Air Monitoring - 2020 Secure Landfill Construction and Operation

Program includes particulate monitoring using real-time meters for particulates (or dust) and volatile organic compounds (VOCs) and sampling for PCB analytical testing. Corrective action levels have been established based on levels that are safe for the community for particulates, VOCs, and PCBs. The actual monitoring results are compared to the corrective action levels to determine if adjustments in construction are needed. The air monitoring locations and tabulated results are provided below.

Air Monitoring Locations

Site Map
 

2020 Air Particulate Data
(Corrective Action Level = 0.150 milligrams per cubic meter above upwind location)

May Particulate Data | June Particulate Data | July Particulate Data | August Particulate Data | September Particulate Data | October Particulate Data |

  Monitoring Station ID (see figure)  
Date Action Level Check SLF-AIR1 SLF-AIR2 SLF-AIR3 SLF-AIR4 SLF-AIR-PA SLF-AIR-PB Notes
Nov 1 All Below 0.0181 0.0226 0.0203 0.0208 -- -- --
Nov 2 All Below 0.01 0.0173 0.017 0.014 -- -- --
Nov 3 All Below 0.003 0.0065 0.0081 0.0062 0.01 0 --
Nov 4 All Below 0.0067 0.0101 0.0089 0.0065 0.011 0.0006 --
Nov 5 All Below 0.0145 0.0224 0.019 0.0175 0.0213 0.0129 --
Nov 6 All Below 0.012 0.0145 0.017 0.0165 0.0156 0.016 --
Nov 7 All Below 0.026 0.0405 0.0399 0.0365 0.043 0.026 --
Nov 8 All Below 0.0291 0.0417 0.042 0.0406 0.046 0.028 --
Nov 9 All Below 0.0341 0.0463 0.0571 0.0472 -- -- --
Nov 10 All Below 0.0429 0.0593 0.0565 0.046 0.0698 0.0291 --
Nov 11 All Below 0.0213 0.0313 0.0245 0.0255 0.029 0.0233 --
Nov 12 All Below 0.005 0.008 0.0091 0.0093 0.0088 0.0085 --
Nov 13 All Below 0.0191 0.0291 0.0297 0.0254 0.0369 0.0072 --
Nov 14 All Below 0.0131 0.0179 0.0261 0.0275 0.0269 0.0153 --
Nov 15 All Below 0.0191 0.0253 0.0258 0.0194 -- -- --
Nov 16 All Below 0.009 0.0393 0.0352 0.0347 -- -- --
Nov 17 All Below 0.004 0.0068 0.0066 0.0055 0.011 0.0015 --
Nov 18 All Below 0.0034 0.0065 0.0063 0.0055 0.0118 0.0025 --
Nov 19 All Below 0.0153 0.0195 0.0192 0.015 0.0264 0.0028 --
Nov 20 All Below 0.0103 0.011 0.0104 0.0098 0.0121 0.0071 --

NA = Data not collected
Particulates (milligrams per cubic meter)
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2020 Air Volatile Organic Compound Data
(Corrective Action Level = 25 ppm above upwind location)

May VOC Data | June VOC Data | July VOC Data | August VOC Data | September VOC Data | October VOC Data |

  Monitoring Station ID (see figure)  
Date Action Level Check SLF-AIR1 SLF-AIR2 SLF-AIR3 SLF-AIR4 SLF-AIR-PA SLF-AIR-PB Notes
Nov 1 All Below 0 0 0.1235 0.0615 -- -- --
Nov 2 All Below 0.0328 0.0903 0.0496 0.0229 -- -- --
Nov 3 All Below 0.0557 0.0951 0.4931 0.0315 2.1546 0.4184 --
Nov 4 All Below 0.0253 0.0359 0 0.0193 0 0.4647 --
Nov 5 All Below 0.0353 0 0 0.0213 9.6835 0.3236 SLF-AIR-PA levels not related for field activities
Nov 6 All Below 0.0297 0 0 0.0001 0.8021 0.4647 --
Nov 7 All Below 0.0641 0 0 0 9.7814 0 SLF-AIR-PA levels not related for field activities
Nov 8 All Below 0.1445 0 0 0 0 0 --
Nov 9 All Below 0.2621 0 0 0.0203 4.3437 0 --
Nov 10 All Below 0.2621 0 0 0.0203 4.3437 0 --
Nov 11 All Below 0.6373 0 0 0.018 0 0 --
Nov 12 All Below 0.1779 0 0 0.0271 0.1966 0.1827 --
Nov 13 All Below 0.1888 0 0.0198 0.0348 3.7455 0.2726 --
Nov 14 All Below 0.1222 0 0.2322 0.0425 9.0003 0.1854 SLF-AIR-PA levels not related to field activities
Nov 15 All Below -- 0 0 0.0369 -- -- --
Nov 16 All Below -- 0 0 0.0305 -- -- --
Nov 17 All Below 0.0163 0 0 0.0157 0 0.2654 --
Nov 18 All Below -- 0.217 0.0145 0.0315 0.2651 0.6449 --
Nov 19 All Below 0 0.2198 0.0117 0.0303 0 0.6642 --
Nov 20 All Below 0 0.011 0 0.0177 1.1527 0.0077 --

NA = Data not collected
Volatile Organic Compounds (VOCs parts per million)
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2020 Air PCB Data
(Corrective Action Level = 0.100 micrograms per cubic meter)

May PCB Data | June PCB Data | July PCB Data | August PCB Data | September PCB Data | October PCB Data |

  Monitoring Station ID (see figure)  
Date Action Level Check SLF-AIR1 SLF-AIR2 SLF-AIR3 SLF-AIR4 SLF-AIR-PA SLF-AIR-PB Notes
Nov 1 All Below 0.000170 0.000150 0.000200 0.000250 -- -- --
Nov 2 All Below 0.000130 0.000220 0.000160 0.000120 -- -- --
Nov 3 All Below Below detectable levels Below detectable levels Below detectable levels Below detectable levels -- -- --
Nov 4 All Below 0.000040 0.000040 Below detectable levels Below detectable levels Below detectable levels Below detectable levels --
Nov 5 All Below 0.000190 0.000170 0.000120 0.001660 Below detectable levels Below detectable levels --
Nov 6 All Below 0.000160 0.000580 0.000220 0.000300 -- -- --
Nov 7 All Below 0.000360 0.000710 0.000520 0.000500 -- -- --
Nov 8 All Below 0.000110 0.000640 0.000240 0.000580 -- -- --
Nov 9 All Below 0.000250 0.000450 0.000440 0.000550 -- -- --
Nov 10 All Below 0.001240 0.001270 0.000390 Below detectable levels Below detectable levels Below detectable levels --
Nov 11 All Below 0.000180 0.000610 0.000220 0.002860 Below detectable levels Below detectable levels --
Nov 12 All Below 0.000180 0.000490 0.000210 0.001680 -- -- --
Nov 13 All Below 0.000090 0.000100 0.000060 0.000060 Below detectable levels Below detectable levels --
Nov 14 All Below 0.000130 0.000190 0.000150 0.000130 Below detectable levels Below detectable levels --
Nov 15 All Below 0.000090 0.000090 Below detectable levels 0.000130 -- -- --
Nov 16 All Below 0.000130 0.000220 0.000150 0.000110 -- -- --
Nov 17 All Below Below detectable levels 0.000280 0.000230 Below detectable levels Below detectable levels Below detectable levels --
Nov 18 All Below 0.000090 0.000070 Below detectable levels Below detectable levels -- -- --
Nov 19 All Below Below detectable levels Below detectable levels Below detectable levels Below detectable levels Below detectable levels Below detectable levels --

NA = Analysis not required
Total PCBs (micrograms per cubic meter)
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Air Monitoring - 2020 River Remediation (Including Route 131 Staging Area and River Locations)

Program includes particulate monitoring using real-time meters for particulates (or dust) and volatile organic compounds (VOCs) and sampling for PCB analytical testing. Corrective action levels have been established based on levels that are safe for the community for particulates, VOCs, and PCBs. The actual monitoring results are compared to the corrective action levels to determine if adjustments in construction are needed. The air monitoring locations and tabulated results are provided below.

Air Monitoring Locations

Site Map
 


2020 Air Particulate Data
(Corrective Action Level = 0.150 milligrams per cubic meter above upwind location)

May Staging Area Air Particulate Data | June Staging Area Air Particulate Data | July Staging Area Air Particulate Data | August Staging Area Air Particulate Data | September Staging Area Air Particulate Data | October Staging Area Air Particulate Data |

  Monitoring Station ID (see figure)  
Date Action Level Check SA-AIR1 SA-AIR2 SA-AIR3 SA-AIR4 Notes
Nov 1 All Below 0.024 0.0304 0.0173 0.046 --
Nov 2 All Below 0.015 0.0209 0.0051 0.0279 --
Nov 3 All Below 0.006 0.009 0.005 0.0177 --
Nov 4 All Below 0.0092 0.0138 0.0041 0.0234 --
Nov 5 All Below 0.0194 0.0367 0.0055 0.0322 --
Nov 6 All Below 0.016 0.0182 0.008 0.0407 --
Nov 7 All Below 0.0363 0.0421 0.0115 0.0551 --
Nov 8 All Below 0.0425 0.0496 0.0157 0.0641 --
Nov 9 All Below 0.0483 0.0609 0.0145 0.0747 --
Nov 10 All Below 0.0515 0.0621 0.0162 0.0678 --
Nov 11 All Below 0.0383 0.054 0.0089 0.0544 --
Nov 12 All Below 0.0094 0.01 0.005 0.0162 --
Nov 13 All Below 0.0195 0.0218 0.01 0.0313 --
Nov 14 All Below 0.0229 0.0234 0.006 0.0299 --
Nov 15 All Below 0.0213 0.0306 0.012 0.0418 --
Nov 16 All Below 0.0129 0.0169 0.006 0.0246 --
Nov 17 All Below 0.0061 0.009 0.006 0.0247 --
Nov 18 All Below 0.0067 0.011 0.006 0.0186 --
Nov 19 All Below 0.006 0.0101 0.006 0.0176 --

NA = Data not collected or recorded
Particulates (milligrams per cubic meter)
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2020 Air Volatile Organic Compound Data
(Corrective Action Level = 25 ppm above upwind location)

May Staging Area VOC Data | June Staging Area VOC Data | July Staging Area VOC Data | August Staging Area VOC Data | September Staging Area VOC Data | October Staging Area VOC Data |

  Monitoring Station ID (see figure)  
Date Action Level Check SA-AIR1 SA-AIR2 SA-AIR3 SA-AIR4 Notes
Nov 1 All Below 0.0546 0.2213 0.0801 0 --
Nov 2 All Below 0.0401 0 0.076 0 --
Nov 3 All Below 0.0399 0.0981 0.0825 0 --
Nov 4 All Below 0.0396 0.1032 0.0675 0 --
Nov 5 All Below 0.0379 0.0609 0.0561 0 --
Nov 6 All Below 0.0028 0.1103 0.0035 0 --
Nov 7 All Below 0.0055 0.0137 0.0083 0.6973 --
Nov 8 All Below 0.0129 0.0345 0.0563 0 --
Nov 9 All Below 0.0275 0.0742 0.0487 0.5293 --
Nov 10 All Below 0.0318 0.0565 0.0588 0.0737 --
Nov 11 All Below 0.0313 0 0.0316 0.5242 --
Nov 12 All Below 0.0303 0 0.0751 0.6156 --
Nov 13 All Below 0.0487 0.0715 0.0822 0 --
Nov 14 All Below 0.0505 0 0.0591 0 --
Nov 15 All Below 0.0537 0.0883 0.1072 0 --
Nov 16 All Below 0.0433 0 0.0926 0 --
Nov 17 All Below 0.0305 0.0007 0.0687 0 --
Nov 18 All Below 0.0447 0.0995 0.0997 0 --
Nov 19 All Below 0.0382 0.0699 0.0927 0 --

NA = Data not collected or recorded
Volatile Organic Compounds (VOCs parts per million)
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2020 Air PCB Data - Staging Area
(Corrective Action Level = 0.100 micrograms per cubic meter)

May Staging Area PCB Data | June Staging Area PCB Data | July Staging Area PCB Data | August Staging Area PCB Data | September Staging Area PCB Data | October Staging Area PCB Data |

  Monitoring Station ID (see figure)  
Date Action Level Check SA-AIR1 SA-AIR2 SA-AIR3 SA-AIR4 Notes
Nov 1 All Below Below detectable levels Below detectable levels Below detectable levels Below detectable levels --
Nov 2 All Below Below detectable levels Below detectable levels Below detectable levels Below detectable levels --
Nov 3 All Below Below detectable levels Below detectable levels Below detectable levels Below detectable levels --
Nov 4 All Below Below detectable levels Below detectable levels Below detectable levels Below detectable levels --
Nov 5 All Below Below detectable levels Below detectable levels 0.000130 0.000100 --
Nov 6 All Below Below detectable levels Below detectable levels 0.000470 0.000130 --
Nov 7 All Below Below detectable levels Below detectable levels 0.000940 0.000220 --
Nov 8 All Below Below detectable levels Below detectable levels 0.000210 0.000190 --
Nov 9 All Below Below detectable levels Below detectable levels 0.000280 0.000150 --

NA = Data not collected or recorded
Total PCBs (micrograms per cubic meter)
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Dredge Corridor Monitoring Locations (click to enlarge)

Site Map
 

2020 Air PCB Data - Mobile River Stations
(Corrective Action Level = 0.100 micrograms per cubic meter)

May Mobile River Stations PCB Data | June Mobile River Stations PCB Data | July Mobile River Stations PCB Data | August Mobile River Stations PCB Data | September Mobile River Stations PCB Data | October Mobile River Stations PCB Data |

 

Air Monitoring - 2020 Haverstock Road Support Area Preparation

Program includes particulate monitoring using real-time meters for particulates (or dust) and volatile organic compounds (VOCs). Corrective action levels have been established based on levels that are safe for the community for particulates and VOCs. The actual monitoring results are compared to the corrective action levels to determine if adjustments in construction are needed. The air monitoring locations and tabulated results are provided below.

Haverstock Monitoring Locations (click to enlarge)

Site Map
 

2020 Air Particulate Data
(Corrective Action Level = 0.150 micrograms per cubic meter above upwind location)

  Monitoring Station ID (see figure)  
Date Action Level Check HAV-AIR1 HAV-AIR2 HAV-AIR3 Notes
Nov 18 All Below 0.0147 0.0118 0.0719 --
Nov 19 All Below 0.0242 0.0211 0.0273 --
Nov 20 All Below 0.014 0.013 0.046 --
Nov 21 All Below 0.0278 0.0297 0.031 --
Nov 24 All Below 0.0157 0.0133 0.0437 --
Nov 25 All Below 0.015 0.0179 0.0332 --
Nov 26 All Below 0.0531 0.0425 0.0869 --
Nov 28 All Below 0.0444 -- -- --
Dec 9 All Below 0.026 0.0446 0.044 --
Dec 10 All Below 0.046 0.0469 0.0701 --
Dec 11 All Below 0.0157 0.0083 0.0378 --
Dec 12 All Below 0.0585 0.0541 0.0576 --
Dec 15 All Below 0.0241 0.0182 0.0144 --
Dec 16 All Below 0.0296 0.0292 0.0208 --

NA = Data not collected or recorded
Particulates (milligrams per cubic meter)
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2020 Air Volatile Organic Compound Data
(Corrective Action Level = 25 ppm above upwind location)

  Monitoring Station ID (see figure)  
Date Action Level Check HAV-AIR1 HAV-AIR2 HAV-AIR3 Notes
Nov 19 All Below 0 0 0 --
Nov 18 All Below 0 0 0 --
Nov 20 All Below 0 0 0 --
Nov 21 All Below 0 0 0 --
Nov 24 All Below 0 0 0 --
Nov 25 All Below 0 0 0 --
Nov 26 All Below 0 0 0 --
Nov 28 All Below 0 -- -- --
Dec 9 All Below 0 0 0 --
Dec 10 All Below 0 0 0 --
Dec 11 All Below 0 5.8062 0 HAV-AIR2 levels not related to field activities
Dec 12 All Below 0 7.0397 0 HAV-AIR2 levels not related to field activities
Dec 15 All Below 0 0.1628 0 --
Dec 16 All Below 0 0 0 --

NA = Data not collected or recorded
Volatile Organic Compounds (VOCs parts per million)
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Water Monitoring - 2020 River Remediation

Program includes turbidity monitoring using real-time meters for solids and PCB analytical testing at the water intake locations. Program also includes total suspended soluds (TSS) and PCB analytical testing at the river locations. Corrective action levels have been established based on levels that are safe for the community for both turbidity and PCBs. The actual monitoring results will be compared to the corrective action levels to determine if adjustments in construction are needed. The water locations and tabulated results are provided below.

Water Column Monitoring Locations (click to enlarge)

Site Map
 

2020 Water Column Total Suspended Solids Data
(Corrective Action Level = 100 mg/L above WC-UP Level at WC-SLR)

May Water Column TSS Data | June Water Column TSS Data | July Water Column TSS Data | August Water Column TSS Data | September Water Column TSS Data | October Water Column TSS Data |

  Monitoring Station ID (see figure)  
Date Action Level Check WC-UP WC-NF2 WC-NF WC-MOUTH WC-SLR Notes
Nov 2 All Below Below detectable levels Below detectable levels -- 43.2 Below detectable levels --
Nov 3 All Below Below detectable levels Below detectable levels -- Below detectable levels Below detectable levels --
Nov 4 All Below Below detectable levels Below detectable levels -- 4.8 Below detectable levels --
Nov 5 All Below Below detectable levels Below detectable levels -- 10.8 Below detectable levels --
Nov 6 All Below Below detectable levels 8.0 -- 10.0 Below detectable levels --
Nov 7 All Below Below detectable levels 8.8 -- 10.8 Below detectable levels --
Nov 9 All Below Below detectable levels Below detectable levels -- 5.2 Below detectable levels --
Nov 10 All Below Below detectable levels Below detectable levels -- Below detectable levels Below detectable levels --
Nov 11 All Below Below detectable levels Below detectable levels -- Below detectable levels Below detectable levels --

Total Suspended Solids (TSS; milligrams per liter)
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2020 Water Column PCB Data
(Corrective Action Level at WC-SLR = 0.5 micrograms per liter)

May Water Column PCB Data | June Water Column PCB Data | July Water Column PCB Data | August Water Column PCB Data | September Water Column PCB Data | October Water Column PCB Data |

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Water Intake Monitoring Locations (click to enlarge)

Site Map
 

2020 Water Intake Turbidity Data
(Corrective Action Level = 25 NTU above Baseline Level)

May Intake Turbidity Data | June Intake Turbidity Data | July Intake Turbidity Data | August Intake Turbidity Data | September Intake Turbidity Data | October Intake Turbidity Data |

  Monitoring Station ID (see figure)  
Date Action Level Check IN-AE-RAW IN-SRMT-RAW IN-SRMT-FIL Notes
Nov 2 All Below 1.1 1.3 0.0 --
Nov 3 All Below 0.9 1.1 0.0 --
Nov 4 All Below 0.3 2.2 0.4 --
Nov 5 All Below 0.3 1.9 0.1 --
Nov 6 All Below 0.6 0.8 0.2 --
Nov 7 All Below 0.3 0.8 0.0 --
Nov 9 All Below 0.2 0.8 0.1 --
Nov 10 All Below 0.2 0.9 0.2 --
Nov 11 All Below 0.4 1.1 0.1 --

NA = Data not collected or recorded
Turbidity (nephelometric turbidity unit; NTU)
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2020 Water Intake PCB Data
(Corrective Action Level = 0.5 micrograms per liter)

May Intake PCB Data | June Intake PCB Data | July Intake PCB Data | August Intake PCB Data | September Intake PCB Data | October Intake PCB Data |

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