Independent Environmental Monitoring Program: Point Lepreau Nuclear Generating Station

New Brunswick Power Nuclear Corporation (NB Power) is licensed by the Canadian Nuclear Safety Commission (CNSC) to operate the Point Lepreau Nuclear Generating Station (PLNGS), which is situated 2 km northeast of Point Lepreau, NB and 40 km southwest of Saint John, NB. The facility is located on the Lepreau Peninsula, on the northern shore of the Bay of Fundy. The station began operations in 1982 and consists of a single CANDU reactor with a rated capacity of 705 megawatts.

The Independent Environmental Monitoring Program (IEMP) results for 2014, 2015 and 2016 confirm that the public and the environment around the PLNGS facility are protected and that there is no unreasonable risk to health or the environment.

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[ ] Guideline/Reference Level

 

Point Lepreau

Showing 1 to 10 of 10 entries
Sample Type Sample Description Parameter 2014 Result 2015 Result 2016 Result Guideline/
Reference Level
Expected Health Impact (Yes/No) Background Sample Code
Soil-Sand Sand 0-5 cm Cesium-137 1.12 Bq/kg dry weight N/A N/A 58.6 Bq/kg dry weight No N/A PL15-S05
Soil-Sand Sand 0-5 cm Cobalt-60 <0.81 Bq/kg dry weight N/A N/A 14.1 Bq/kg dry weight No N/A PL15-S05
Soil Soil 0-4 cm Cesium-137 8.6 Bq/kg dry weight N/A N/A 58.6 Bq/kg dry weight No N/A PL12-S04
Soil Soil 0-4 cm Cobalt-60 <0.81 Bq/kg dry weight N/A N/A 14.1 Bq/kg dry weight No N/A PL12-S04
Water Well Water Gross Alpha N/A <0.05 Bq/L 0.5 Bq/L No N/A PL11-W06
Water Well Water Gross Beta <0.16 Bq/L 0.11 Bq/L 1 Bq/L No N/A PL11-W06
Water Well Water Cesium-137 <0.24 Bq/L <0.23 Bq/L 10.0 Bq/L No N/A PL11-W06
Water Well Water Tritiated water 14 Bq/L 17.9 Bq/L 7,000 Bq/L No N/A PL11-W06
Water Well Water Cobalt-60 N/A <0.28 Bq/L 12.1 Bq/L No N/A PL11-W06
Soil Soil 0-5 cm Cesium-137 <0.65 Bq/kg dry weight 39.2 Bq/kg dry weight 58.6 Bq/kg dry weight No N/A PL11-S03
Soil Soil 0-5 cm Cobalt-60 <0.81 Bq/kg dry weight <1.4 Bq/kg dry weight 14.1 Bq/kg dry weight No N/A PL11-S03
Soil Soil 0-5 cm Cesium-137 5.1 Bq/kg dry weight 58.6 Bq/kg dry weight No N/A PL11-S03
Soil Soil 0-5 cm Cobalt-60 < 1.4 Bq/kg dry weight 14.1 Bq/kg dry weight No N/A PL11-S03
Water Well Water Gross Alpha < 0.07 Bq/L 0.5 Bq/L No N/A PL11-W06
Water Well Water Gross Beta < 0.09 Bq/L 1 Bq/L No N/A PL11-W06
Water Well Water Cesium-137 < 0.25 Bq/L 10.0 Bq/L No N/A PL11-W06
Water Well Water Tritiated water 30.6 Bq/L 7,000 Bq/L No N/A PL11-W06
Water Well Water Cobalt-60 < 0.28 Bq/L 12.1 Bq/L No N/A PL11-W06
Water Well Water Iron-59 N/A N/A < 0.83 Bq/L 70 Bq/L No N/A PL11-W06
Soil Soil 0-5 cm Cesium-137 2.44 Bq/kg dry weight N/A N/A 58.6 Bq/kg dry weight No N/A PL10-S02
Soil Soil 0-5 cm Cobalt-60 <0.81 Bq/kg dry weight N/A N/A 14.1 Bq/kg dry weight No N/A PL10-S02
Air Cesium-137 <0.0004 Bq/m3 N/A N/A 2.56 Bq/m3 No N/A PL09-A03
Air Iodine-131 <0.003 Bq/m3 N/A N/A 0.228 Bq/m3 No N/A PL09-A03
Air Cesium-137 N/A <0.000063 Bq/m3 2.56 Bq/m3 No N/A PL16-A05
Air Cobalt-60 N/A <0.000072 Bq/m3 0.832 Bq/m³ No N/A PL16-A05
Air Cesium-137 < 0.000058 Bq/m3 2.56 Bq/m3 No N/A PL06-A06
Air Tritiated water N/A N/A 4 Bq/m3 340 Bq/m³ No N/A PL06-A06
Air Cobalt-60 < 0.000066 Bq/m3 0.832 Bq/m³ No N/A PL06-A06
Air Iodine-131 N/A N/A < 0.0011 Bq/m3 0.228 Bq/m3 No N/A PL06-A06
Air Tritiated hydrogen N/A N/A < 2.1 Bq/m3 5,100,000 Bq/m³ No N/A PL06-A06
Soil Soil 0-5 cm Cesium-137 15.8 Bq/kg dry weight 58.6 Bq/kg dry weight No N/A PL16-S06
Soil Soil 0-5 cm Cobalt-60 < 1.4 Bq/kg dry weight 14.1 Bq/kg dry weight No N/A PL16-S06
Vegetation Grass Organically Bound Tritium N/A N/A 3.7 Bq/kg fresh weight 21,700 Bq/kg fresh weight No N/A PL16-V01
Vegetation Grass Cesium-137 < 6.7 Bq/kg fresh weight 52 Bq/kg fresh weight No N/A PL16-V01
Vegetation Grass Tritiated water N/A N/A 5.1 Bq/kg fresh weight 50,000 Bq/kg fresh weight No N/A PL16-V01
Vegetation Grass Cobalt-60 < 7.2 Bq/kg fresh weight 605 Bq/kg fresh weight No N/A PL16-V01
Vegetation Lichen Organically Bound Tritium N/A N/A 9 Bq/kg fresh weight 21,700 Bq/kg fresh weight No N/A PL16-V01B
Vegetation Lichen Cesium-137 N/A N/A < 6.7 Bq/kg fresh weight 52 Bq/kg fresh weight No N/A PL16-V01B
Vegetation Lichen Tritiated water N/A N/A < 2 Bq/kg fresh weight 50,000 Bq/kg fresh weight No N/A PL16-V01B
Vegetation Lichen Cobalt-60 N/A N/A < 7.2 Bq/kg fresh weight 605 Bq/kg fresh weight No N/A PL16-V01B
Water Well Water Gross Alpha < 0.07 Bq/L 0.5 Bq/L No N/A PL16-W07
Water Well Water Gross Beta 0.11 Bq/L 1 Bq/L No N/A PL16-W07
Water Well Water Cesium-137 < 0.25 Bq/L 10.0 Bq/L No N/A PL16-W07
Water Well Water Tritiated water 11.9 Bq/L 7,000 Bq/L No N/A PL16-W07
Water Well Water Cobalt-60 < 0.28 Bq/L 12.1 Bq/L No N/A PL16-W07
Water Well Water Iron-59 N/A N/A < 0.83 Bq/L 70 Bq/L No N/A PL16-W07
Vegetation Grass Cesium-137 N/A <5.8 Bq/kg fresh weight 52 Bq/kg fresh weight No N/A PL16-V01
Vegetation Grass Cobalt-60 N/A <6.4 Bq/kg fresh weight 605 Bq/kg fresh weight No N/A PL16-V01
Soil Soil 0-5 cm Cesium-137 N/A 13.6 Bq/kg dry weight 58.6 Bq/kg dry weight No N/A PL16-S06
Soil Soil 0-5 cm Cobalt-60 N/A <1.4 Bq/kg dry weight 14.1 Bq/kg dry weight No N/A PL16-S06
Water Well Water Gross Alpha N/A <0.05 Bq/L 0.5 Bq/L No N/A PL16-W07
Water Well Water Gross Beta N/A 0.08 Bq/L 1 Bq/L No N/A PL16-W07
Water Well Water Cesium-137 N/A <0.23 Bq/L 10.0 Bq/L No N/A PL16-W07
Water Well Water Tritiated water N/A 9.9 Bq/L 7,000 Bq/L No N/A PL16-W07
Water Well Water Cobalt-60 N/A <0.28 Bq/L 12.1 Bq/L No N/A PL16-W07
Water Surface Water Gross Beta <0.16 Bq/L N/A N/A 1 Bq/L No N/A PL08-W05
Water Surface Water Cesium-137 <0.24 Bq/L N/A N/A 10.0 Bq/L No N/A PL08-W05
Water Surface Water Tritiated water 385 Bq/L N/A N/A 7,000 Bq/L No N/A PL08-W05
Soil Soil 0-5 cm Cesium-137 42.4 Bq/kg dry weight N/A N/A 58.6 Bq/kg dry weight No N/A PL07-S01
Soil Soil 0-5 cm Cobalt-60 <0.81 Bq/kg dry weight N/A N/A 14.1 Bq/kg dry weight No N/A PL07-S01
Soil Soil 0-5 cm Cesium-137 N/A 10.6 Bq/kg dry weight 58.6 Bq/kg dry weight No N/A PL06-S07
Soil Soil 0-5 cm Cobalt-60 N/A <1.4 Bq/kg dry weight 14.1 Bq/kg dry weight No N/A PL06-S07
Sediment Sediment 0-5 cm Cesium-137 N/A <0.66 Bq/kg dry weight 37,300 Bq/kg dry weight No N/A PL06-SE02
Sediment Sediment 0-5 cm Cobalt-60 N/A <0.74 Bq/kg dry weight 5,870 Bq/kg dry weight No N/A PL06-SE02
Water Surface Water Cesium-137 <0.24 Bq/L <0.23 Bq/L 10.0 Bq/L No N/A PL06-W04
Water Surface Water Tritiated water 15 Bq/L 3.5 Bq/L 7,000 Bq/L No N/A PL06-W04
Water Surface Water Cobalt-60 N/A <0.28 Bq/L 12.1 Bq/L No N/A PL06-W04
Air Iodine-131 <0.003 Bq/m3 N/A N/A 0.228 Bq/m3 No N/A PL05-A02
Soil Soil 0-5 cm Cesium-137 9.6 Bq/kg dry weight 58.6 Bq/kg dry weight No N/A PL06-S07
Soil Soil 0-5 cm Cobalt-60 < 1.4 Bq/kg dry weight 14.1 Bq/kg dry weight No N/A PL06-S07
Sediment Sediment 0-5 cm Cesium-137 < 0.68 Bq/kg dry weight 37,300 Bq/kg dry weight No N/A PL06-SE02
Sediment Sediment 0-5 cm Cobalt-60 < 0.74 Bq/kg dry weight 5,870 Bq/kg dry weight No N/A PL06-SE02
Vegetation Lichen Organically Bound Tritium N/A N/A 65.1 Bq/kg fresh weight 21,700 Bq/kg fresh weight No N/A PL06-V04
Vegetation Lichen Cesium-137 N/A N/A < 6.7 Bq/kg fresh weight 52 Bq/kg fresh weight No N/A PL06-V04
Vegetation Lichen Tritiated water N/A N/A 24.6 Bq/kg fresh weight 50,000 Bq/kg fresh weight No N/A PL06-V04
Vegetation Lichen Cobalt-60 N/A N/A < 7.2 Bq/kg fresh weight 605 Bq/kg fresh weight No N/A PL06-V04
Water Surface Water Gross Alpha N/A N/A < 0.07 Bq/L 0.5 Bq/L No N/A PL06-W04
Water Surface Water Gross Beta N/A N/A < 0.09 Bq/L 1 Bq/L No N/A PL06-W04
Water Surface Water Cesium-137 < 0.25 Bq/L 10.0 Bq/L No N/A PL06-W04
Water Surface Water Tritiated water 95.3 Bq/L 7,000 Bq/L No N/A PL06-W04
Water Surface Water Cobalt-60 < 0.28 Bq/L 12.1 Bq/L No N/A PL06-W04
Water Surface Water Iron-59 N/A N/A < 0.83 Bq/L 70 Bq/L No N/A PL06-W04
Air Cesium-137 < 0.000058 Bq/m3 2.56 Bq/m3 No N/A PL16-A05
Air Tritiated water N/A N/A < 2.1 Bq/m3 340 Bq/m³ No N/A PL16-A05
Air Cobalt-60 < 0.000066 Bq/m3 0.832 Bq/m³ No N/A PL16-A05
Air Iodine-131 N/A N/A < 0.0011 Bq/m3 0.228 Bq/m3 No N/A PL16-A05
Air Tritiated hydrogen N/A N/A < 2.1 Bq/m3 5,100,000 Bq/m³ No N/A PL16-A05
Water Well Water Gross Beta <0.16 Bq/L N/A N/A 1 Bq/L No N/A PL05-W03
Water Well Water Cesium-137 <0.24 Bq/L N/A N/A 10.0 Bq/L No N/A PL05-W03
Water Well Water Tritiated water 32 Bq/L N/A N/A 7,000 Bq/L No N/A PL05-W03
Air Cesium-137 N/A <0.000063 Bq/m3 2.56 Bq/m3 No N/A PL06-A06
Air Cobalt-60 N/A <0.000072 Bq/m3 0.832 Bq/m³ No N/A PL06-A06
Vegetation Cesium-137 N/A <5.8 Bq/kg fresh weight N/A 52 Bq/kg fresh weight No N/A PL06-V02
Vegetation Cobalt-60 N/A <6.4 Bq/kg fresh weight N/A 605 Bq/kg fresh weight No N/A PL06-V02
Water Stream / Ground Water Gross Alpha N/A <0.05 Bq/L N/A 0.5 Bq/L No N/A PL06-W08
Water Stream / Ground Water Gross Beta N/A <0.05 Bq/L N/A 1 Bq/L No N/A PL06-W08
Water Stream / Ground Water Cesium-137 N/A <0.23 Bq/L N/A 10.0 Bq/L No N/A PL06-W08
Water Stream / Ground Water Tritiated water N/A 46 Bq/L N/A 7,000 Bq/L No N/A PL06-W08
Water Stream / Ground Water Cobalt-60 N/A <0.28 Bq/L N/A 12.1 Bq/L No N/A PL06-W08
Sediment Sediment 0-5 cm Cesium-137 <0.65 Bq/kg dry weight N/A N/A 37,300 Bq/kg dry weight No N/A PL03-SE01
Sediment Sediment 0-5 cm Cobalt-60 <0.81 Bq/kg dry weight N/A N/A 5,870 Bq/kg dry weight No N/A PL03-SE01
Food Stuff Lettuce/Carrots/Beets Organically Bound Tritium 2.1 Bq/kg fresh weight 45,200 Bq/kg fresh weight No N/A PL04-F04
Food Stuff Lettuce/Carrots/Beets Cesium-137 N/A N/A < 1.1 Bq/kg fresh weight 160 Bq/kg fresh weight No N/A PL04-F04
Food Stuff Lettuce/Carrots/Beets Tritiated water 10.5 Bq/kg fresh weight 104,000 Bq/kg fresh weight No N/A PL04-F04
Food Stuff Lettuce/Carrots/Beets Cobalt-60 N/A N/A < 1.4 Bq/kg fresh weight 373 Bq/kg fresh weight No N/A PL04-F04
Food Stuff Lettuce Organically Bound Tritium N/A N/A 1.5 Bq/kg fresh weight 45,200 Bq/kg fresh weight No N/A PL04-F07
Food Stuff Lettuce Cesium-137 N/A N/A < 3.7 Bq/kg fresh weight 160 Bq/kg fresh weight No N/A PL04-F07
Food Stuff Lettuce Tritiated water N/A N/A 12.9 Bq/kg fresh weight 104,000 Bq/kg fresh weight No N/A PL04-F07
Food Stuff Lettuce Cobalt-60 N/A N/A < 4.2 Bq/kg fresh weight 373 Bq/kg fresh weight No N/A PL04-F07
Food Stuff Zucchini Organically Bound Tritium N/A N/A < 0.5 Bq/kg fresh weight 45,200 Bq/kg fresh weight No N/A PL04-F14
Food Stuff Zucchini Cesium-137 N/A N/A < 0.95 Bq/kg fresh weight 160 Bq/kg fresh weight No N/A PL04-F14
Food Stuff Zucchini Tritiated water N/A N/A 20.5 Bq/kg fresh weight 104,000 Bq/kg fresh weight No N/A PL04-F14
Food Stuff Zucchini Cobalt-60 N/A N/A < 1.04 Bq/kg fresh weight 373 Bq/kg fresh weight No N/A PL04-F14
Food Stuff Lettuce/Carrots/Beets Organically Bound Tritium <1.5 Bq/kg fresh weight 1.6 Bq/kg fresh weight 45,200 Bq/kg fresh weight No N/A PL04-F04
Food Stuff Lettuce/Carrots/Beets Tritiated water 7.4 Bq/kg fresh weight 13.1 Bq/kg fresh weight 104,000 Bq/kg fresh weight No N/A PL04-F04
Food Stuff Beet greens Organically Bound Tritium N/A <1.5 Bq/kg fresh weight N/A 45,200 Bq/kg fresh weight No N/A PL04-F06
Food Stuff Beet greens Tritiated water N/A 9.9 Bq/kg fresh weight N/A 104,000 Bq/kg fresh weight No N/A PL04-F06
Food Stuff Apples Organically Bound Tritium <1.5 Bq/kg fresh weight 2.8 Bq/kg fresh weight N/A 50,300 Bq/kg fresh weight No N/A PL04-F14
Food Stuff Apples Cesium-137 N/A <0.82 Bq/kg fresh weight N/A 258 Bq/kg fresh weight No N/A PL04-F14
Food Stuff Apples Tritiated water 16 Bq/kg fresh weight 40.9 Bq/kg fresh weight N/A 123,000 Bq/kg fresh weight No N/A PL04-F14
Food Stuff Apples Cobalt-60 N/A <0.97 Bq/kg fresh weight N/A 242 Bq/kg fresh weight No N/A PL04-F14
Vegetation Grass Cesium-137 N/A <5.8 Bq/kg fresh weight 52 Bq/kg fresh weight No N/A PL04-V03
Vegetation Grass Cobalt-60 N/A <6.4 Bq/kg fresh weight 605 Bq/kg fresh weight No N/A PL04-V03
Soil Soil 0-5 cm Cesium-137 N/A 23.2 Bq/kg dry weight 58.6 Bq/kg dry weight No N/A PL04-S08
Soil Soil 0-5 cm Cobalt-60 N/A <1.4 Bq/kg dry weight 14.1 Bq/kg dry weight No N/A PL04-S08
Food Stuff Blackberries Organically Bound Tritium <1.5 Bq/kg fresh weight N/A N/A 50,300 Bq/kg fresh weight No N/A PL04-F02
Food Stuff Blackberries Tritiated water 6.8 Bq/kg fresh weight N/A N/A 123,000 Bq/kg fresh weight No N/A PL04-F02
Water Well Water Gross Beta <0.16 Bq/L N/A N/A 1 Bq/L No N/A PL04-W02
Water Well Water Cesium-137 <0.24 Bq/L N/A N/A 10.0 Bq/L No N/A PL04-W02
Water Well Water Tritiated water 8.5 Bq/L N/A N/A 7,000 Bq/L No N/A PL04-W02
Food Stuff Carrots Organically Bound Tritium <1.5 Bq/kg fresh weight N/A N/A 45,200 Bq/kg fresh weight No N/A PL04-F03
Food Stuff Carrots Tritiated water 7 Bq/kg fresh weight N/A N/A 104,000 Bq/kg fresh weight No N/A PL04-F03
Air Iodine-131 <0.003 Bq/m3 N/A N/A 0.228 Bq/m3 No N/A PL04-A01
Soil Soil 0-5 cm Cesium-137 37.7 Bq/kg dry weight 58.6 Bq/kg dry weight No N/A PL04-S08
Soil Soil 0-5 cm Cobalt-60 < 1.4 Bq/kg dry weight 14.1 Bq/kg dry weight No N/A PL04-S08
Vegetation Grass Organically Bound Tritium N/A N/A 5.8 Bq/kg fresh weight 21,700 Bq/kg fresh weight No N/A PL04-V03
Vegetation Grass Cesium-137 < 6.7 Bq/kg fresh weight 52 Bq/kg fresh weight No N/A PL04-V03
Vegetation Grass Tritiated water N/A N/A 17.9 Bq/kg fresh weight 50,000 Bq/kg fresh weight No N/A PL04-V03
Vegetation Grass Cobalt-60 < 7.2 Bq/kg fresh weight 605 Bq/kg fresh weight No N/A PL04-V03
Food Stuff Shellfish - Clams Organically Bound Tritium N/A <1.5 Bq/kg fresh weight N/A 1,040,000 Bq/kg fresh weight No N/A PL12-F08
Food Stuff Shellfish - Clams Cesium-137 N/A <1.6 Bq/kg fresh weight N/A 3,700 Bq/kg fresh weight No N/A PL12-F08
Food Stuff Shellfish - Clams Tritiated water N/A 17 Bq/kg fresh weight N/A 2,400,000 Bq/kg fresh weight No N/A PL12-F08
Food Stuff Shellfish - Clams Cobalt-60 N/A <1.7 Bq/kg fresh weight N/A 11,900 Bq/kg fresh weight No N/A PL12-F08
Food Stuff Shellfish - Clams Organically Bound Tritium N/A N/A 0.6 Bq/kg fresh weight 1,040,000 Bq/kg fresh weight No N/A PL12-F05
Food Stuff Shellfish - Clams Cesium-137 N/A N/A < 0.87 Bq/kg fresh weight 3,700 Bq/kg fresh weight No N/A PL12-F05
Food Stuff Shellfish - Clams Tritiated water N/A N/A < 2.4 Bq/kg fresh weight 2,400,000 Bq/kg fresh weight No N/A PL12-F05
Food Stuff Shellfish - Clams Cobalt-60 N/A N/A < 0.89 Bq/kg fresh weight 11,900 Bq/kg fresh weight No N/A PL12-F05
Food Stuff Fish - Salmon Organically Bound Tritium <1.5 Bq/kg fresh weight 15.9 Bq/kg fresh weight N/A 212,000 Bq/kg fresh weight No N/A PL12-F05
Food Stuff Fish - Salmon Cesium-137 N/A <0.89 Bq/kg fresh weight N/A 1,040 Bq/kg fresh weight No N/A PL12-F05
Food Stuff Fish - Salmon Tritiated water <1.5 Bq/kg fresh weight 17 Bq/kg fresh weight N/A 488,000 Bq/kg fresh weight No N/A PL12-F05
Food Stuff Fish - Salmon Cobalt-60 N/A <0.99 Bq/kg fresh weight N/A 1,350 Bq/kg fresh weight No N/A PL12-F05
Food Stuff Milk - Raw Organically Bound Tritium <1.5 Bq/kg fresh weight N/A N/A 2,260 Bq/kg fresh weight No N/A PL01-F01
Food Stuff Milk - Raw Tritiated water <1.5 Bq/kg fresh weight N/A N/A 5560 Bq/kg fresh weight No N/A PL01-F01

1 The < symbol indicates that a result is below the provided laboratory analytical detection limit.

2 N/A – not available

3 For radiological parameters where no guidelines exist, CNSC reference levels were established based on conservative assumptions using CSA Standard N288.1-14. The reference level for a particular radionuclide in a particular medium (e.g., water, air, food) represents the activity concentration that would result in a dose of 0.1 millisieverts/year (mSv/a), a dose at which no health impacts are expected.

4 Tritiated water (HTO) is a radioactive form of water in which the usual hydrogen atoms in H2O are replaced with tritium. Elemental Tritium (HT) refers to the radioactive form of hydrogen gas.

Background

Under the Nuclear Safety and Control Act (NSCA), licensees of nuclear facilities are required to implement an environmental monitoring program (EMP) to demonstrate that the public and the environment are protected from emissions related to the facility's nuclear activities. The results of these monitoring programs are submitted to the CNSC to ensure compliance with applicable guidelines and limits, as set out in regulations that oversee Canada's nuclear industry.

The CNSC has implemented its IEMP to verify that the public and the environment around licensed nuclear facilities are protected. It is separate from, but complementary to, the CNSC's ongoing compliance verification program. The IEMP involves taking samples from public areas around the facilities, and measuring and analyzing the amount of radiological (nuclear)and/or hazardous substances in those samples. CNSC staff collect the samples and send them to the CNSC's state-of-the-art laboratory for testing and analysis. Since the implementation of the IEMP, the areas outside the PLNGS site perimeter were sampled in 2014, 2015 and 2016.

2016 Results

The 2016 IEMP sampling plan for the PLNGS site focused on nuclear contaminants. A site-specific sampling plan was developed based on NB Power's approved environmental monitoring program and the CNSC's regulatory experience with the site. In 2016, samples were collected in publicly accessible areas outside the PLNGS site perimeter and included surface and well water, soil and river sediment, air particulates, grass, and foodstuffs such as shellfish and produce from local farms outside of the PLNGS perimeter fence. View detailed sampling data.

The measured radioactivity in all the samples with detectable radionuclide concentrations were below CNSC reference levels. Similar to the results obtained in 2014 and 2015, the concentration of Cs-137 in one soil sample approached the reference level. As previously noted, Cs-137 in this region originates from fallout of weapons tests and reactor accidents, and is not the result of NB Power's operations. CNSC reference levels are based on conservative assumptions about the exposure that would result in a dose of 0.1 mSv/year, which represents one-tenth of the CNSC's public dose limit of 1 mSv/year. Overall, the results indicate that no health impacts are expected at this dose level.

2015 Results

The 2015 IEMP sampling plan for the PLNGS site focused on nuclear contaminants. A site-specific sampling plan was developed based on NB Power’s approved environmental monitoring program, CSA Group standards and the CNSC’s regulatory experience with the site. In 2015, samples were collected in publicly accessible areas outside the PLNGS site perimeter and included surface and well water, soil and river sediment, air particulates, grass, and foodstuffs such as fish, shellfish and produce from local farms outside of the PLNGS perimeter fence. View detailed sampling data.

The measured radioactivity in all the samples with detectable radionuclide concentrations were below CNSC reference levels. While remaining below the reference level, the concentration of Cs-137 in one soil sample approached the reference level. It must be noted that Cs-137 in this region originates from fallout of weapons tests and reactor accidents (Chernobyl and Fukushima), and is not the result of NB Power’s operations. CNSC reference levels are based on conservative assumptions about the exposure that would result in a dose of 0.1 mSv/year, which represents one-tenth of the CNSC’s public dose limit of 1 mSv/year. Overall, the results indicate that no health impacts are expected at this dose level.

2014 Results

The 2014 IEMP sampling plan for the PLNGS site focused on radiological aspects. A site-specific sampling plan was developed based on NB Power’s approved Operational Radiological Environmental Monitoring Program (OREMP). In 2014, samples were collected in publicly accessible areas outside the PLNGS site perimeter and included air particulate, surface water, soil and sediment, and food such as milk, fish and produce from local farms outside of the PLNGS perimeter fence. View detailed sampling data.

The radioactivity measured in water, sediment, and soil samples, as well as samples of milk and meat, were below available guidelines and CNSC reference levels. While remaining below it, the concentration of Cs-137 in one soil sample approached the reference level. It must be noted that Cs-137 in this region originates from fallout of weapons tests and reactor accidents (Chernobyl and Fukushima), and is not the result of NB Power’s operations. CNSC reference levels are based on conservative assumptions about the exposure that would result in a dose of 0.1 mSv/year. No health impacts are expected at this dose level. The tritiated water result at sampling location PL08-W05 is higher than the other sample results. This is due to the sample location’s proximity to an area that is affected by higher tritium levels. The IEMP result remains well below the drinking water guidelines and is in the same range as NB Power’s reported values.

Conclusions

The IEMP results indicate that the public and the environment in the vicinity of the PLNGS facility are protected and that there are no unreasonable risks to health and the environment.