2019 Construction Monitoring

Environmental monitoring for the 2019 construction includes water and air monitoring. Air monitoring is being performed around the secure landfill, water and air monitoring are being performed for the staging area during the in-river shoreline work, air monitoring is being performed around soil removal areas along the north shore of the river near the Alcoa Bridge, and water and air monitoring are being performed for the in-river capping test. These monitoring activities and results are summarized below.

 

Air Monitoring - 2019 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
 

2019 Air Particulate Data
(Corrective Action Level = 0.150 milligrams per cubic meter above upwind location)

April Particulate Data | May Particulate Data | June 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
July 1 All Below 0.0154 0.0205 0.0232 0.0235 NA NA --
July 2 All Below 0.0173 0.014 0.0243 0.0249 0.025 0.01 --
July 3 All Below 0.0507 0.0487 0.0667 0.0683 0.047 0.0624 --
July 4 All Below 0.0536 0.0785 0.0776 0.0857 0.0713 0.0687 --
July 5 All Below 0.0387 0.0603 0.0618 0.0651 NA NA --
July 6 All Below 0.0355 0.0385 0.0465 0.0473 NA NA --
July 7 All Below 0.0742 0.0675 0.0962 0.0956 -- -- --
July 8 All Below 0.0237 0.0238 0.0215 0.0259 NA NA --
July 9 All Below 0.0193 0.0228 0.0288 0.0327 0.0177 0.434 --
July 10 All Below 0.0329 0.0301 0.0418 0.0417 0.0394 0.0323 --
July 11 All Below 0.0371 0.0567 0.043 0.0442 0.0431 0.0286 --
July 12 All Below 0.0415 0.0464 0.0475 0.0493 0.0444 NA --

NA = Data not collected
Particulates (milligrams per cubic meter)
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2019 Air Volatile Organic Compound Data
(Corrective Action Level = 25 ppm above upwind location)

April VOC Data | May VOC Data | June 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
July 1 All Below 1.0211 0.1379 0.1887 0.5919 NA NA --
July 2 All Below 0.9537 0.1255 0 0.6988 1.1071 0.013 --
July 3 All Below 12.114 0.1224 0 0.7723 1.0041 1.9294 SLF-AIR1 levels not related to field activities.
July 4 All Below 2.1451 0.2152 0.0584 0.9769 0 0.7871 --
July 5 All Below 1.201 0.1732 0 0.9763 -- -- --
July 6 All Below 16.181 0.1483 0 0.7642 -- -- SLF-AIR1 levels not related to field activities.
July 7 All Below 0.2885 0.2539 0.1521 0.624 -- -- --
July 8 All Below 2.8124 0.0685 0.0691 0.4919 -- -- --
July 9 All Below 4.7582 0.0888 0.0279 0.5643 1.4187 2.7716 --
July 10 All Below 0.2514 0.1573 0.1618 0.635 0 0.2406 --
July 11 All Below 26.29 0.1314 0.1119 0.7342 0.0231 0.1862 SLF-AIR1 levels not related to field activities.
July 12 All Below 6.7729 0.1681 0.0513 0.5395 0.0151 NA SLF-AIR1 levels not related to field activities.

NA = Data not collected
Volatile Organic Compounds (VOCs parts per million)
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2019 Air PCB Data
(Corrective Action Level = 0.100 micrograms per cubic meter)

April PCB Data | May PCB Data June 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
July 1 All Below 0.000650 0.007600 0.018000 0.007700 -- -- --
July 2 All Below 0.000350 0.001800 0.200000 0.017000 Below Detectable Levels -- --
July 3 All Below 0.000630 0.002100 0.260000 0.019000 Below Detectable Levels Below Detectable Levels --
July 4 All Below 0.003800 0.003300 0.130000 0.075000 Below Detectable Levels Below Detectable Levels --
July 5 All Below 0.001200 0.002800 0.110000 0.065000 -- -- --
July 6 All Below 0.003200 0.003400 0.021000 0.002300 -- -- --
July 7 All Below 0.001700 0.002900 0.004400 0.003300 -- -- --
July 8 All Below 0.000630 0.002100 0.260000 0.019000 -- -- --

NA = Analysis not required
Total PCBs (micrograms per cubic meter)
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Air Monitoring - 2019 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
 


2019 Air Particulate Data
(Corrective Action Level = 0.150 milligrams per cubic meter above upwind location)

April Staging Area Air Particulate Data | May Staging Area Air Particulate Data | June Staging Area Air Particulate Data |

  Monitoring Station ID (see figure)  
Date Action Level Check SA-AIR1 SA-AIR2 SA-AIR3 SA-AIR4 Notes
July 1 All Below 0.0241 0.0242 0.0259 0.0232 --
July 2 All Below 0.0177 0.0123 0.0385 0.0243 --
July 3 All Below 0.0545 0.0407 0.0248 0.0549 --
July 4 All Below 0.0533 0.0549 0.0601 0.1429 SA-AIR4 levels not related to field activities.
July 5 All Below 0.0533 0.0524 0.0587 0.0577 --
July 6 All Below 0.0411 0.1365 0.0434 0.047 SA-AIR2 levels not related to field activities.
July 7 All Below 0.0901 0.0653 0.0712 0.0797 --
July 8 All Below 0.017 0.0119 0.0149 0.0122 --
July 9 All Below 0.021 0.0177 0.0193 0.0199 --
July 10 All Below 0.0315 0.0242 0.0375 0.0344 --
July 11 All Below 0.0407 0.0361 0.0345 0.0404 --
July 12 All Below 0.0654 0.059 0.039 0.0471 --

NA = Data not collected or recorded
Particulates (milligrams per cubic meter)
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2019 Air Volatile Organic Compound Data
(Corrective Action Level = 25 ppm above upwind location)

April Staging Area VOC Data | May Staging Area VOC Data | June Staging Area VOC Data |

  Monitoring Station ID (see figure)  
Date Action Level Check SA-AIR1 SA-AIR2 SA-AIR3 SA-AIR4 Notes
July 1 All Below 0 0.2729 0.4476 0 --
July 2 All Below 0 0.2636 0.0026 0 --
July 3 All Below 0 0.2358 0.4625 0 --
July 4 All Below 0 0.3553 0.5643 0 --
July 5 All Below 0 0.6943 0.4138 0 --
July 6 All Below 0 0.5531 0.415 0 --
July 7 All Below 0.1953 0.7764 0.5839 0 --
July 8 All Below 0.1661 1.1972 0.9355 0 --
July 9 All Below 0.0265 0.178 0.7184 0 --
July 10 All Below 0.1343 0.3177 0.3459 0 --
July 11 All Below 0 0 0.3517 0 --
July 12 All Below 0 0.3087 0.9444 0 --

NA = Data not collected or recorded
Volatile Organic Compounds (VOCs parts per million)
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2019 Air PCB Data - Staging Area
(Corrective Action Level = 0.100 micrograms per cubic meter)

April Staging Area PCB Data | May Staging Area PCB Data | June Staging Area PCB Data |

  Monitoring Station ID (see figure)  
Date Action Level Check SA-AIR1 SA-AIR2 SA-AIR3 SA-AIR4 Notes
July 1 All Below Below Detectable Levels Below Detectable Levels 0.019800 0.001400 --
July 2 All Below Below Detectable Levels Below Detectable Levels 0.009500 0.010700 --
July 3 All Below Below Detectable Levels Below Detectable Levels 0.062000 0.007500 --
July 4 All Below Below Detectable Levels 0.015000 0.033000 0.008800 --
July 5 All Below Below Detectable Levels Below Detectable Levels 0.005900 0.002300 --
July 6 All Below Below Detectable Levels Below Detectable Levels 0.002600 0.008200 --
July 7 All Below Below Detectable Levels Below Detectable Levels 0.003000 0.001500 --
July 8 All Below Below Detectable Levels Below Detectable Levels 0.002300 0.000640 --

NA = Data not collected or recorded
Total PCBs (micrograms per cubic meter)
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2019 Air PCB Data - Mobile River Stations
(Corrective Action Level = 0.100 micrograms per cubic meter)

April Mobile River Stations PCB Data | May Mobile River Stations PCB Data | June Mobile River Stations PCB Data |

  Monitoring Station ID (see figure)  
Date Action Level Check DC-M1 DC-M2 DC-M3 DC-M4 DC-M5 DC-M6 Notes
July 2 All Below -- Below Detectable Levels Below Detectable Levels Below Detectable Levels -- Below Detectable Levels --
July 3 All Below -- Below Detectable Levels Below Detectable Levels Below Detectable Levels -- Below Detectable Levels --
July 4 All Below -- Below Detectable Levels Below Detectable Levels 0.007000 -- 0.020000 --

NA = Data not collected or recorded
Total PCBs (micrograms per cubic meter)
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Air Monitoring - 2019 Soil Removal Areas Along the North Shore

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 (Click to enlarge)

Site Map
 


2019 Air Particulate Data
(Corrective Action Level = 0.150 milligrams per cubic meter above upwind location)

April Upland Particulate Data | May Upland Particulate Data | June Upland Particulate Data |

  Monitoring Station ID (see figure)  
Date Action Level Check UP-AIR1 UP-AIR2 UP-AIR3 UP-AIR4 UP-AIR5 SLF-AIR1 SLF-AIR2 SLF-AIRPA SA-AIR1 Notes
July 2 All Below 0.0182 0.0155 0.0205 -- 0.0234 0.0173 0.014 0.025 0.0177 --
July 3 All Below 0.0538 0.0391 0.0584 -- 0.0621 0.0507 0.0487 0.047 0.0545 --
July 4 All Below 0.0705 0.0583 0.0696 -- 0.0823 0.0536 0.0785 0.0713 0.0533 --
July 9 All Below 0.0216 0.0194 0.0771 -- 0.099 0.0193 0.0228 0.0177 0.021 --
July 10 All Below 0.0405 0.0229 0.0363 -- 0.0269 0.0329 0.0301 0.0394 0.0315 --
July 11 All Below 0.0391 0.0281 0.0385 -- 0.0317 0.0371 0.0567 0.0431 0.0407 --
July 12 All Below 0.0393 0.0273 0.0423 -- 0.0329 0.0415 0.0434 0.0444 0.0654 --

NA = Data not collected or recorded
Particulates (milligrams per cubic meter)
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2019 Air Volatile Organic Compound Data
(Corrective Action Level = 25 ppm above upwind location)

April Upland VOC Data | May Upland VOC Data | June Upland VOC Data |

  Monitoring Station ID (see figure)  
Date Action Level Check UP-AIR1 UP-AIR2 UP-AIR3 UP-AIR4 UP-AIR5 SLF-AIR1 SLF-AIR2 SLF-AIR-PA SA-AIR1 Notes
July 2 All Below 0 0 0.0295 -- 0.0632 0.9537 0.1255 1.1071 0 --
July 3 All Below 0 0 0.1986 -- 0.0667 12.114 0.1224 1.0041 0 SLF-AIR1 levels not related to field activities.
July 4 All Below 0 0.1891 0.2469 -- 0.077 2.1451 0.2152 0 0 --
July 9 All Below 8.572 0.9565 0.2125 -- 0.0859 4.7582 0.0888 1.4187 0.0265 SLF-AIR1 levels not related to field activities.
July 10 All Below 0 0.3285 0.1059 -- 0.017 0.2514 0.1573 0 0.1343 --
July 11 All Below 0 0 0.2595 -- 0.0357 26.29 0.1314 0.0231 0 SLF-AIR1 levels not related to field activities.
July 12 All Below 0 0 7.3987 -- 0.0167 6.7729 0.1681 0.0151 0 UP-AIR3 and SLF-AIR1 levels not related to field activities.

NA = Data not collected or recorded
Volatile Organic Compounds (VOCs parts per million)
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2019 Air PCB Data
(Corrective Action Level = 0.100 micrograms per cubic meter)

April Upland PCB Data | May Upland PCB Data | June Upland PCB Data |

  Monitoring Station ID (see figure)  
Date Action Level Check UP-AIR1 UP-AIR2 UP-AIR3 UP-AIR4 UP-AIR5 SLF-AIR1 SLF-AIR2 SLF-AIR-PA SA-AIR1 Notes
July 2 All Below Below Detectable Levels Below Detectable Levels Below Detectable Levels -- Below Detectable Levels 0.000350 0.001800 Below Detectable Levels Below Detectable Levels --
July 3 All Below Below Detectable Levels Below Detectable Levels 0.014000 -- 0.019000 0.000630 0.002100 Below Detectable Levels Below Detectable Levels --
July 4 All Below 0.025000 0.011000 0.015000 -- 0.009000 0.003800 0.003300 Below Detectable Levels Below Detectable Levels --

NA = Data not collected or recorded
Total PCBs (micrograms per cubic meter)
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Water Monitoring - 2019 River Remediation

Program includes turbidity monitoring using real-time meters for solids and PCB analytical testing at water column and water intake 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
 

2019 Water Column Total Suspended Solids Data
(Corrective Action Level = 100 mg/L above WC-UP Level)

April Water Column TSS Data | May Water Column TSS Data | June Water Column TSS Data |

  Monitoring Station ID (see figure)  
Date Action Level Check WC-UP WC-NF WC-MOUTH WC-SLR Notes
July 1 All Below Below Detectable Levels 6.4 4.0 Below Detectable Levels --
July 2 All Below 5.2 6.0 4.8 Below Detectable Levels --
July 3 All Below 4.4 7.6 4.4 Below Detectable Levels --
July 8 All Below Below Detectable Levels Below Detectable Levels Below Detectable Levels Below Detectable Levels --
July 9 All Below Below Detectable Levels 11.2 Below Detectable Levels Below Detectable Levels --

Total Suspended Solids (TSS; micrograms per liter)
TSS values in parentheses represent an additional NF station sampled closer to the upstream work platform.
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2019 Water Column PCB Data
(Corrective Action Level at WC-SLR = 0.5 micrograms per liter)

April Water Column PCB Data | May Water Column PCB Data | June Water Column PCB Data |

  Monitoring Station ID (see figure)  
Date Action Level Check WC-NF WC-MOUTH WC-SLR Notes
July 1 All Below Below Detectable Levels Below Detectable Levels Below Detectable Levels --
July 2 All Below Below Detectable Levels Below Detectable Levels Below Detectable Levels --
July 3 All Below 0.900000 Below Detectable Levels Below Detectable Levels Construction Work Review/Evaluation Performed
July 8 All Below Below Detectable Levels Below Detectable Levels Below Detectable Levels --
July 8 All Below 0.410000 0.087000 Below Detectable Levels --

Total PCBs (micrograms per liter)
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Water Intake Monitoring Locations (click to enlarge)

Site Map
 

2019 Water Intake Turbidity Data
(Corrective Action Level = 25 NTU above Baseline Level)

April Intake Turbidity Data | May Intake Turbidity Data | June Intake Turbidity Data |

  Monitoring Station ID (see figure)  
Date Action Level Check IN-AE-RAW IN-SRMT-RAW IN-SRMT-FIL Notes
July 1 All Below 1.2 2.3 1.0 --
July 2 All Below 0.2 2.4 0.6 --
July 3 All Below 1.0 1.2 0.9 --
July 8 All Below 0.7 1.5 0.3 --
July 8 All Below 0.7 1.5 0.3 --
July 9 All Below 0.5 2.9 0.3 --
July 10 All Below 0.5 3.0 0.3 --
July 11 All Below 0.4 0.8 0.4 --

NA = Data not collected or recorded
Turbidity (nephelometric turbidity unit; NTU)
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2019 Water Intake PCB Data
(Corrective Action Level = 0.5 micrograms per liter)

April Intake PCB Data | May Intake PCB Data | June Intake PCB Data |

  Monitoring Station ID (see figure)  
Date Action Level Check IN-AE-RAW IN-SRMT-RAW IN-SRMT-FIL Notes
July 1 All Below Below Detectable Levels Below Detectable Levels Below Detectable Levels --
July 2 All Below Below Detectable Levels Below Detectable Levels Below Detectable Levels --
July 3 All Below Below Detectable Levels Below Detectable Levels Below Detectable Levels --
July 8 All Below Below Detectable Levels Below Detectable Levels Below Detectable Levels --
July 9 All Below Below Detectable Levels Below Detectable Levels Below Detectable Levels --

Total PCBs (micrograms per liter)
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