1. Lynas Advanced Materials Plant
Key data from Operations
to September 2016

2. RADIATION SAFETY MONITORING PROGRAM
There are 4 types of radiation monitoring activities at the LAMP
Lynas Monitoring Activities
Occupational Exposure Monitoring Program
Environmental Radiation Monitoring Program
Continuous Aerosol Monitoring System (AMS)
Regulatory Monitoring
AELB Monitoring – carried out by the AELB

3. NO radiological impact to public
Work Section
Off-site of LAMP
Critical Group
External Radiation (mSv/year)
222Rn (mSv/year)
220Rn (mSv/year)
Dust (mSv/year)
Total Dose (mSv/year)
1 km
workers working at adjacent plants
Equals background
<0.007
<0.0033
5 km
Public
<0.0072
10 km
Equal s background
20 km
Internal doses from inhalation of dust are calculated in accordance to NORM-5 guideline (DMP, 2010) as follows:
Internal dose (dust), mSv/year = AM x t x BR x DCF 
Where,
AM is arithmetic mean of gross α-activity concentration (Bq/m3);
t is number of exposure hours (hour);
BR is default breathing rate of 1.2 m3/hour; and
DCF is the dose conversion factor of mSv/Bqα, for the WLP dust with Th:U ratio of 25:1, mSv/Bqα for the LC dust with Th:U ratio of 20:1 and an AMAD of 5 µm (Table D.9 in Appendix D of DMP, 2010) for radiation workers, and an AMAD of 1 µm for members of the public (Table D.1 in Appendix D of DMP, 2010). The default Activity Mean Aerodynamic Diameter (AMAD) is in line with ICRP-66 recommendation.
2. Internal doses assessment from inhalation of radon and thoron are calculated in accordance to the NORM-5 guideline issued by the West Australian Department of Mines and Petroleum in 2010 (DMP, 2010) as follows:
ERn (Radon), mSv/year = EECRn x fRn x T
ETn (Thoron), mSv/year = EECTn x fTn x T
ERn and ETn are exposures from inhalation of radon progeny and thoron progeny, respectively (mSv/year);
EECRn = Equilibrium Equivalent Concentration of Radon;
EECTn = Equilibrium Equivalent Concentration of Thoron;
T is the exposure time (hour);
fRn is the conversion factors for radon progeny, 9 nSv/(Bq.h.m-3); and
fTn is the conversion factor for thoron progeny 40 nSv/(Bq.h.m-3).
Permissible Limit for public = 1 mSv per year; Permissible Limit for radiation workers = 20 mSv per year
NOTE: Dose is an overestimate, MDL values were used for values less than MDL in calculating doses

4. NO change in External Dose Rates since LAMP started operation

5. NO CHANGE in Radon-Thoron levels since LAMP started operation
LAMP Starts operation

6. Surface Water Monitoring Program: Types and Parameters
Carried out by: Accredited 3rd party Environmental Consultant’s reported
Type
Parameters
In-situ Measurement
pH, Temperature, Dissolved Oxygen (DO), Conductivity
Physical
Biological Oxygen Demand (BOD5), Chemical Oxygen Demand (COD), Suspended Solids (SS), Total Dissolved Solids (TDS)
Inorganics
Cyanide, Free chlorine, Sulfide, Oil & grease, Ammoniacal nitrogen (AN), Calcium, Carbonate, Phosphate.
Metals
Arsenic, Mercury, Cadmium, Chromium, Copper, Iron, Lead, Manganese, Nickel, Tin, Zinc
Microbiological
Total coliform

7. Monitoring Stations for water sampling

8. Effluent TSS measured over time at the point of discharged from the LAMP: Levels LOWER than the permissible limit (Std B Water Quality)

9. Effluent COD measured over time at the point of discharged from the LAMP: Levels LOWER than the permissible limit (Std B Water Quality)

10. Iron concentrations in effluent measured over time at the point of discharged from the LAMP: Levels LOWER than the permissible limit (Std B Water Quality)

11. Manganese concentrations in effluent measured at the point of discharged from the LAMP: Levels LOWER than the permissible limit (Std B Water Quality)

12. Discharge water quality:
Quality of the final discharge is WELL BELOW LIMIT of the Standard B
Water quality Upstream and Downstream:
a. WELL WITHIN Class II and Class III of NIQWSM
Heavy metals and other metals were UNDETECTED OR FOUND IN TRACE LEVELS
The Inland waters including river systems are classified into five classes based on the National Interim Water Quality Standards for Malaysia (NIWQSM). The classes of the NIWQSM are as follows:
Class I : Conservation of natural water supply- practically no treatment necessary
Class IIA: Conventional treatment required
Class IIB: Recreational use with body contact.
Class III: Extensive treatment required
Class IV: Irrigation
Class V: None of the above
The discharge of treated industrial wastewater or effluent is governed under the Environmental Quality (Industrial Effluent) Regulations, These regulations specify two separate discharge standards (for 30 parameters) which are as follows:
Standard A: A set of more stringent limits applicable to discharges arising within water supply catchment areas;
Standard B: A set of less stringent limits applicable to other inland waters (outside of catchment areas) or any part of the sea abutting the foreshore and other body of natural or artificial or subsurface water.
Water quality Upstream:
Parameters namely for pH, DO, BOD, TSS and AN were well within the Class II and Class III of NIWQSM during both Low and High Tides from January to March 2013.
Heavy metals (mercury, cadmium, lead) and other metals were undetected or found in trace concentrations in the upstream sample
For the water quality downstream:  Parameters including pH, DO, BOD, COD, TSS and AN fall within the Class II and Class III of NIWQSM during both Low and High Tides from January to March Heavy metals (mercury, cadmium, lead) and other metals were undetected or found in trace concentrations in the upstream sample.