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For the Attention of: Ms. Charlotte Greene
EHS Compliance Officer.
Advanced Environmental Solutions (Ireland) Ltd.,
C/O Bord na Móna
Main Street Newbridge
Co. Kildare.
Site Work Completed by: Mr. Stephen Stapleton
Sampling Dates: 08th October, 11th November and 2nd December
Report Prepared by: Mr. Stephen Stapleton
Environmental Scientist
Report Reviewed by: Mr. Peter Coogan
Environmental Team Leader
BNM File Ref: ECS5172 –EMS
Monitoring Period: Q4 2015
Report Date: 08th January 2016
______________________________________________________________________________________________________
This report shall not be reproduced except in full, without the approval of BNM Environmental. All queries concerning the report or its contents
should be forwarded to the Monitoring Team Leader.
EMISSIONS TO SEWER MONITORING
(QUARTER 4)
AT AES, NENAGH,
CO. TIPPERARY;
W0240-01
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EXECUTIVE SUMMARY
Advanced Environmental Solutions (AES) Ltd. is required to carry out an assessment of the emissions to
sewer on a monthly and a quarterly basis as per Schedule C.3.2 In accordance with the facility EPA
Waste Licence (W0240-01).
BNM Environmental was commissioned to perform the quarterly sampling, analysis and reporting. AES
staff completed the monthly sampling and sent the samples directly to the BNM Environmental
Laboratory. Samples were collected from the emissions to sewer (SE-1) and returned to the laboratory
for analysis.
The Results were in compliance with the requirements of the Waste Licence (W0240-01).
Respectively Submitted,
__________________________ __________________________
Mr. Stephen Stapleton Mr. Peter Coogan
Environmental Scientist Environmental Team Leader
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1.0 EMISSIONS TO SEWER
1.1 Emissions to sewer monitoring location
The emissions to sewer sampling location is described in Table 1.1 and marked on the map
contained in Appendix 1.
TABLE 1.1: LOCATION OF SAMPLING STATIONS
Sample Point Grid Co-ordinates (ITM)
Note 1 Location
Emissions to sewer 584869, 678836 Outside the waste transfer building –
to the North-East side of the site
Note 1 – The grid location of each monitoring location was logged with a handheld Garmin GPS 60.
The units of measurement are Irish Transverse Mercator (ITM).
The emission to sewer sample includes runoff from the waste transfer building and runoff from
the bin wash located south of the waste building.
2.0 Methodology
2.1 Sampling
Grab samples of emissions to sewer were extracted in accordance with the following
standards.
TABLE 2.1: STANDARDS
ISO Standard Description
ISO 5667-1-2006 Guidance on the design of sampling programmes and sampling techniques
ISO 5667-3-2012
Guidance on sample preservation and handling
ISO 5667-14-2014
Guidance on quality assurance of environmental sampling & handling
ISO 5667-10-1992
Guidance on sampling wastewaters
Sampling was conducted in strict accordance with BNM Environmental recognised Standard
Operations Procedures (SOP) TS-W-02. All samples were returned to the laboratory, and
stored between 1-8°C.
Details of the laboratory accreditation, methods and quality standards are provided in
Appendix 2
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3.0 Results
3.1 Emissions to Sewer Results
The results of the Emissions to Sewer analysis are presented in Table 3.1 below.
TABLE 3.1: RESULTS OF CHEMICAL ANALYSIS OF EMISSIONS TO SEWER SAMPLES
Parameter Units Quarterly
08th Oct 15
Monthly
11th Nov 15
Monthly
02nd Dec 15
Emission Limit Value (ELV)Note 1
pH pH units 7.7 6 8.2 6-10
Temperature oC 16 – – –
On-Site Visual Inspection
– Cloudy Brown
Some Solids – – –
Odour – faint organic – – –
COD mg/l 708 45 571 3,000
BOD mg/l 400 – – 1,000
Ammonia-N mg/l 21 – – 50
Suspended Solids mg/l 202 257 117 1,000
Mineral Oils** mg/l <0.01 – – –
Sulphates (as SO4) mg/l 53 – – 500
Oils, Fats & Greases*
mg/l 14 – – 100
MBAS mg/l 1.89 – – 100
Orthophosphate mg/l 1.8 – – – Note 1: Emission limits for the Emissions to Sewer as specified in Waste Licence No W0240-01
* Non-INAB accredited method ** Sub-contracted analysis
Note 2: See Appendix 2 for Laboratory Test Methods / Accreditation.
4.0 Discussion
Monthly Parameters
The results of COD analysis fluctuated during quarter 4 ranging from 45 → 708mg/l, as would
be expected from foul water emissions with varying concentrations of discharge. All results
were within the ELV 3,000mg/l. The pH results in Quarter 4 ranged from 6.0 → 8.2pH units
and remain within the ELV 6-10pH units. Suspended solids results fluctuated during quarter 4
ranging from 117 → 257mg/l and remain below the ELV of 1,000mg/l.
Quarterly Parameters
The following decreases were noted since the previous monitoring event:
Mineral oils decreased (2.36→<0.01mg/l)
Ammonia decreased (29→ 21mg/l)
Orthophosphate decreased (4.6→1.8mg/l)
The following increases were noted since the previous monitoring event
Oils, fats and greases increased (6→14mg/l)
Sulphate increased (46→53mg/l).
MBAS increased (0.65→1.89mg/l). Despite the varying concentrations and fluctuations in
levels from Quarter 3 to Quarter 4, all parameters analysed were below their respective
quarterly emission limit values.
Figures 1 to 10 below graphically display the results obtained October 2014 to December 2015.
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Figure 1
Figure 2
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Figure 3
Figure 4
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Figure 5
Figure 6
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Figure 7
Figure 8
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Figure 9
Figure 10
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APPENDIX I
Monitoring Locations
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APPENDIX 2
Analytical Methods
Lab Accreditation
Chain of Custody
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CHEMICAL ANALYSIS OF SAMPLES
Parameter Limit of
Detection/Range Method Accredited
Visual Inspection – On-Site Visual Determination –
Odour – On-Site Sensory Determination –
Temperature (oC) – In-Situ Calibrated DO /
Temperature Thermometer –
pH (pH units) 0.1 – 14 G/05: Based on APHA, 2012, 22nd
Edition, Method 4500 H+B.
INAB
Conductivity (µS/cm) <50μS/cm
G/06: Based on APHA, 2012, 22nd Edition, Method 2510B.
INAB
COD (mg/l) <10 mg/l COD G/03: Based on APHA, 2012, 22nd
Edition Method 5220D.
INAB
BOD (mg/l) <2 mg/l BOD G/04: Based on APHA, 2012, 22nd
Edition, Method 5210-B.
INAB
Ammonia-N (mg/l)
<0.02 mg/l NH3-No
G/67: Based on APHA, 2012, 22nd Edition, 4500-NH3 & bluebook
Ammonia in water 1981.
INAB
Sulphates (as SO4) (mg/l)
<0.5 mg/l SO4
G/39: Based on APHA, 2012, 22nd Edition, Method 4110B.
INAB
Orthophosphates (mg/l)
<0.16 mg/l PO4-P
G/39: Based on APHA, 2012, 22nd Edition, Method 4110B.
INAB
Oils, Fats & Greases (mg/l)
<1 mg/l
G/32: Based on APHA, 2005, 21st Edition, Method 5520B.
X
Total Suspended Solids (mg/l)
<5 mg/l dried residue
G/19: Based on APHA, 2012, 22nd Edition, Method 2540D.
INAB
MBAS (mg/l) <0.05 mg/l G/24: Based on APHA, 2012, 22nd
Edition, Method 5540C.
INAB
Mineral Oils (mg/l) * <0.010 mg/l GC UKAS
Notes:
INAB Accredited Test Method – INAB Registration Reference No. 083T.
APHA American Public Health Association, Standard Methods for the Examination of Waters and Waste Waters, 22nd Edition, 2012
G/ INAB Accredited Method, BNM Environmental & Analytical Services Standard Operating Procedures Manual * Sub-Contracted Test – Jones Environmental, UKAS Accredited Laboratory, UK
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ACCREDITED QUALITY SYSTEM
INAB Accreditation
BNM Environmental analytical laboratories are accredited to ISO 17025 by the National Accreditation
Board (INAB). ISO 17025 accreditation ensures that the laboratory operates a quality system with
technically competent staff. The laboratory has accreditation since 1997 and it is the policy of the
laboratory to achieve and maintain a high standard of quality consistent with client's requirements in all
aspects of the work carried out within the laboratory.
Interlaboratory Proficiency Schemes
To ensure the accuracy of the analytical testing the laboratory participates in several external
proficiency schemes. The ongoing competence of the laboratory and its staff is assessed by
participation in various inter-laboratory proficiency testing schemes, such as LGC Aquacheck scheme
and the EPA Intercalibration programme organised for environmental laboratories throughout Ireland.
BNM Environmental Laboratory Services & Analytical Laboratory is listed on the EPA’s register of
Quality Controlled Laboratories
Control Chain of Custody
As part of the Quality System in place in BNM Environmental, measures are taken to ensure controlled
chain of custody. An outline of the chain of custody is given below.
BNM Environmental
SITE TRANSPORT LABORATORY
Sampling and packaging of
all samples were carried out
by BNM Environmental
Monitoring Team:
Transport
Document
Form
Transport to
laboratory by BNM
Environmental
Technical Team.
Sample
Reception
Form
Receiving of samples at BNM
Environmental Laboratory complex
by: Laboratory Manager
(Secure laboratory complex access
to authorised personnel only)
Stephen Stapleton
Storage of all samples for 1 month
period after report issue.
Supervised Disposal
CONTROLLED CHAIN OF CUSTODY
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APPENDIX 3
Lab Report
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