HomeMy WebLinkAbout2635 - Site Assessment ReportAPPENDIX A: SITE CHARACTERISATION FORM
File Reference:
Prefix: First Name: Edel Surname: I1inn
Address: Site Location and Townland:
[mcarrowMa9heracfoonecoMonahafl
Number of Bedrooms: L3
Comments on population equivalent
Maximum Number of Residents:
Proposed Water Supply:
Mains 17 Private Well/Borehole
Soil Type, (Specify Type): I Surface water Gleys, Ground water Gleys
Subsoil, (Specify Type): I Sandstone and shale till (Lower Paleozoic)
Group Well/Borehole
Bedrock Type: Permo-Triassic Sandstones
Aquifer Category: Regionally Important I Locally Important Lm Poor
Vulnerability: Extreme J High J Moderate j✓ Low LII
Groundwater Body: I Status
Name of Public/Group Scheme Water Supply within 1 km:
Source Protection Area: ZOC Si SO ❑ Groundwater Protection Response: R1
Presence of Significant Sites
(Archaeological, Natural & Historical):
Past experience in the area:
Comments:
(Integrate the information above in order to comment on: the potential suitability of the site,
None CO.
MON. CO. CO.
None
19.. 1F
05 MAY 2026
targets at risk, and/or any potential site restrictions).
Following the desk study the site appears suitable for the safe disposal of efflu:nt subject to GPR of R1 which states
Acceptable subject to normal good practice. Where domestic water supplies are-h�eate
given to the depth of subsoil over bedrock such that the minimum depths required in Chapter 6 are met and the
likelihood of microbial pollution is minimised
Note: Only information available at the desk study stage should be used in this section.
P LA bbl N 9 ail ;a ' ('. 6 a i'sV \j,j
REF. ICY O.
MON9Ac_={HAN CO. COUNCIL
3.1 Visual Assessment
Landscape Position:
Jndulating hills
Slope: Steep (>1:5) �✓ Shallow (1:5-1:20) ❑✓ Relatively Flat (<1:20) U
Slope Comment Sloping West to East Sloping West to East Sloping West to East
Surface Features within a minimum of 250m (Distance To Features Should Be Noted In Metres)
Houses:
Houses to north and south of site >300m from site.
Cottage to be renovated on site.
Existing Land Use:
agriculture
Vegetation Indicators:
grass
Groundwater Flow Direction: West to East
Ground Condition:
=irm Underfoot
Site Boundaries:
frees & Hedgerows
3.1 Visual Assessment (contd.)
Roads:
Minor road to east of site
Outcrops (Bedrock And/Or Subsoil):
None Visible
Surface Water Pondina:
None visible
Lakes:
None Visible
Beaches/Shellfish Areas:
None Visible
Wetlands:
None Visible
Karst Features:
None Visible
Watercourses/Streams:*
3.1 Visual Assessment (contd.)
Drainage Ditches:`
None Visible
Springs:*
None Visible
Wells:*
No wells within 30m of proposed percolation area.
Comments:
(Integrate the information above in order to comment on: the potential suitability of the site, potential targets at risk, the suitability of the site to treat the wastewater
and the location of the proposed system within the site).
Following the visual assessment the site appears suitable for the safe disposal of effluent.
'Note and record water level
3.2 Trial Hole (should be a minimum of 2.1m deep (3m for regionally important aquifers))
To avoid any accidental damage, a trial hole assessment or percolation tests should not be undertaken
in areas which are at or adjacent to significant sites, (e.g. NHAs, SACs, SPAs, and/or Archaeological
etc.), without prior advice from National Parks and Wildlife Service or the Heritage Service.
Depth of trial hole (m): 2.2
Depth from ground surface Depth from ground surface
to bedrock (m) (if present): to water table (m) (if present):
Depth of water ingress: Rock type (if present):
Date and time of excavation: 04 -Apr -2026 12:35 Date and time of examination: 08 -Apr -2026 10:45
Depth of
Surface and
Subsurface Soil/Subsoil
Percolation Texture & Plasticity and Soil Density/ Colour**** Preferential
Tests Classification** dilatancy*** Structure Compactness flowpaths
0.1m I
0.2m1____
0.3 m
0.4 m - es
0.5m
0.6m
0.7 m I I
0.8 m es
0.9m lI
1.0m I I
1.1m I I
1.2m I
1.3m1
1.4 m l�
1.5 m
1.6m II
1.7 m l�
1.8m lI
1.9m I
2.0m II
2.1m I
2.2 m 1I
2.3m lI
2.4m (1
2.5m
2.6m1
2.7m fl I
2.8m l_I
2.9m I I
3.oml____
3.1m I
3.2 m 1_I
3.3m 11
3.4m riiiii
3.5mrii
TOPSOIL
GARVELLY CLAY
GRAVEL
BOULDERS
BASE OF TRIAL
HOLE 2.2M
2-3 THREADS CRUMB FIRM
<100mm RIBBONS
DILATANT
3 THREADS STRUCTURE- STIFF
Likely Subsurface Percolation Value: 20
Likely Surface Percolation Value: L 10
BROWN NONE
ROOT ZONE
LIGHT NONE
BROWN
Note: Depth of percolation test holes should be indicated on log above. ('Enter Surface or Subsurface at depths as appropriate).
See Appendix E for BS 5930 classification.
3 samples to be tested for each horizon and results should be entered above for each horizon.
'"' All signs of mottling should be recorded.
3.2 Trial Hole (contd.) Evaluation:
Following the trail hole inspection the site appears suitable for the safe disposal of effluent.
3.3(a) Subsurface Percolation Test for Subsoil
Step 1: Test Hole Preparation
Percolation Test Hole
I
2
3
Depth from ground surface
450 450 450
to top of hole (mm) (A)
Depth from ground surface j
850 850 850
to base of hole (mm) (B)
Depth of hole (mm) [B - A]
400
40
4400
Dimensions of hole
[length x breadth (mm)]
310 x 320
310 x 300
300 x 320
Step 2: Pre -Soaking Test Holes
Pre-soak start Date
07 -Apr -2026 j
07 -Apr -2026
07 -Apr -2026
Time
09:15
09:15!09:15
2nd pre-soak Date
07 -Apr -2026
07 -Apr -2026107
-Apr -2026
start Time
17:22
17:22
17:22
Each hole should be pre-soaked twice before the test
is carried out.
Step 3: Measuring T100
Percolation Test Hole No.
1
2
3
Date of test
08-04-2026 08-04-2026 08-04-2026
Time filled to 400 mm
10:5011_10:50!!_10:52!
Time water level at 300 mm
11:56
11:59 11:58
Time (min.) to drop 100 mm (T)
66.00
69.00 66.00
Average T,�
67.00
If T,00 > 480 minutes then Subsurface Percolation value >120 — site unsuitable for discharge to ground
If T,00 5 210 minutes then go to Step 4;
If T100 > 210 minutes then go to Step 5;
Step 4: Standard Method (where T100 ≤ 210 minutes)
Percolation
Test Hole
1
2
3
Fill no.
Start Finish At (min)
Start Finish At (min)
Start Finish At (min)
Time Time
Time Time
Time Time
(at 300 (at 200
mm) mm)
(at 300 (at 200
mm) mm)
(at 300 (at 200
mm) mm)
1
11:56 13:1011 74.001
11:59 13:20l 81.00
11:58 13:1111 73.00
2
13:10 14:4011 90.00
13:20 14:5811 98.00
13:11 14:4411 93.00
3
Average At
14:40 16:2711 107.00
14:58 16:5211 114.001
I 141 16:2411 100.00
90.33
97.67
88.67
Value
Average At/4 =
[Hole No.1] I 22.581(t1)
Average At/4 =
[Hole No.2] 24.421(t2)
Average At/4 =
[Hole No.3] I 22.17 (t3)
Result of Test: Subsurface Percolation Value = 23.06 (min/25 mm)
Comments:
1 -VALUE WITHIN THE ALLOWABLE RANGE SET OUT IN THE EPA GUIDELINES
Step 5: Modified Method (where T100 > 210 minutes)
Percolation
Test Hole No. 1
Fall of water Time Start Finish Time K,, T —
in hole (mm) Factor Time Time of fall = T, Value
=T, hh:mm hh:mm (mins) IT, =4.45
= Tm /K
300 -250 8.1 =0
200 - 150 11.9 ==0==
0.00
150- 100 14.1 =0I 0.0011
Average T- Value T- Value Hole 1 = (T1) I 0.00
Percolation
Test Hole No. 3
Percolation
Test Hole No. 2
Fall of water
in hole (mm)
Time
Factor
=T,
Start
Time
hh:mm
Finish
Time
hh:mm
Time
of fall
(mins)
=T
K,,
= T,
/T
T—
Value
=4.45
/K„
300-250
I_8.1111 0.00 =�
250-200
I_9.71 L__ 0.00 =_
200- 150
I 11.9 0L_ 0.00 0_____
150-100
14.1 �0 0.00 =�
Average
T- Value T- Value Hole 2 = (T2) I 0.00
Result of Test: Subsurface Percolation Value =
0.001 (min/25 mm)
Fall of water Time Start Finish Time K, T- Comments:
in hole (mm) Factor Time Tim§e of fall = T, Value
= T, hh:mm hh:mm (mins) / Tm = 4.45
=Tm /K,,
300-250 8.1 I0I 0.00 ==
250 -200 [j&=L---1 0.0011 �
200- 150 DO �� 0.00
150- 100 14.1 =0 0.0011 I
Average T- Value T- Value Hole 3 = (T2) I 0.00
3.3(b) Surface Percolation Test for Soil
Step 1: Test Hole Preparation
Percolation Test Hole 1 2 3
Depth from ground surface
0 0
to top of hole (mm)
Depth from ground surface 400 410L 410
to base of hole (mm)
Depth of hole (mm) 400 410 410
Dimensions of hole
[length x breadth (mm)] 1 310 x 300 1 300 x 310!! 300 x 3001
Step 2: Pre -Soaking Test Holes
Pre-soak start Date 07 -Apr -2026 07 -Apr -2026 07 -Apr -2026
Time 09:151 I 09:15 09:15
2nd pre-soak Date 07 -Apr -2026 07 -Apr -2026 07 -Apr -2026
start Time 17:22 17:22 1722
Each hole should be pre-soaked twice before the test is carried out.
Step 3: Measuring T100
1 2 3
Percolation Test Hole No.
I II II I
Date of test 08 -Apr -26 08 -Apr -26 08 -Apr -2026
Time filled to 400 mm 10:54 II 10:55 10:55
Time water level at 300 mm 11:24 II 11:2711 11:26
31.00
Time to drop 100 mm (T 30.00 32.001�
Average T100 31.00
If T100 > 480 minutes then Surface Percolation value >90 — site unsuitable for discharge to ground
If T100 < 210 minutes then go to Step 4;
If T100 > 210 minutes then go to Step 5;
Step 4: Standard Method (where T100 ≤ 210 minutes)
Percolation
Test Hole
1
2
3
Fill no.
Start Finish AT (min)
Start Finish AT (min)
Start Finish AT (min)
Time Time
Time Time
Time Time
(at 300 (at 200
mm) mm)
(at 300 (at 200
mm) mm)
(at 300 (at 200
mm) mm)
1
11:24 12:00 36.00I
11:27 12:0711 40.00
11:26 12:0311 37.00
2
12:00 12:4211 42.00
12:07 12:56 49.00
12:03 12:5011 47.001
3
Average AT
12:42 13:3311 51.00
12:56 13:5811 62.00
50.33
12:50 13:45jj 55.00
L43-00
46.33
Value
Average AT/4 =
[Hole No.1] I 10.75 (T,)
Average AT/4 =
[Hole No.2] 12.581(T2)
Average AT/4 =
[Hole No.3] 11.58 (T3
Result of Test: Surface Percolation Value = 11.64 (min/25 mm)
Comments:
3 -VALUE WITHIN THE ALLOWABLE RANGE SET OUT IN THE EPA GUIDELINES
Step 5: Modified Method (where T100 > 210 minutes)
Percolation
Test Hole No. 1
Percolation
Test Hole No. 2
Fall of water
in hole (mm)
Time
Factor
=T
Start
Time
hh:mm
Finish
Time
hh:mm
Time
of fall
(mins)
= m
K5
= T,
/ T
T-
Value
= 4.45
/K,.
Fall of water
In hole (mm)
Time
Factor
=T1
Start
Time
hh:mm
Finish
Time
hh:mm
Time
of fall
(mins)
=Tm
K,
= T,
IT,
T—
Value
=4.45
300-250
8.1 00 0.00 l �
300-250
I 8.1 00 0 0.00 0
250
9.7 � 0= 0.00 0
250 - 200
0 I
9.7 �0 0.0r
-200
200-150
11.9 1 =0 0.00 II
200-150
11.9 00I 0.00 II
100
14.1 =� 0.0011 j
150 - 100
14.1 ��0 0.00 =
150-
_____
Average
T- Value T- Value Hole 1 = (T1) I 0.00
Average
T- Value T- Value Hole 2 = (T2) I 0.00
Result of
Test: Surface Percolation Value =
Percolation
0.00 (min/25 mm)
Test Hole No.
3
Fall of water
Time
Start
Finish
Time
K,,
T —
in hole (mm)
Factor
Time
Time
of fall
=T,
Value
=T
hh:mm
hh:mm
(mins)
IT,,,
= 4.45
Tm
1K5
300-250
i i 0.00 lIu
250 -200
9.7 i0I I I=
200 - 150
Lm9 .00 I I_
150- 100
14.1 0.00 ��
Comments:
Average I T- Value T- Value Hole 3 = (2)T 0.00 I I
Integrate the information from the desk study and on -site assessment (i.e. visual assessment, trial hole and
percolation tests) above and conclude the type of system(s) that is (are) appropriate. This information is also used
to choose the optimum final disposal route of the treated wastewater.
Slope of proposed infiltration / treatment area: 01
Are all minimum separation distances met?
Depth of unsaturated soil and/or subsoil beneath invert of gravel
(or drip tubing in the case of drip dispersal system) 0.90
Percolation test result: Surface: 11.64 Sub -surface: 23.06
Not Suitable for Development I
Identify all suitable options
1. Septic tank system (septic tank and
percolation area) (Chapter 7) Yes
2. Secondary Treatment System
(Chapters 8 and 9) and soil polishing filter Yes
(Section 10.1)
3. Tertiary Treatment System and Infiltration /
treatment area (Section 10.2) Yes
Suitable for Development Q
Discharge Route'
GROUNDWATER
Propose to install: Septic tank system (septic tank and percolation area)
and discharge to: Ground Water
Invert level of the trench/bed gravel or drip tubing (m) I 0.85
Site Specific Conditions (e.g. special works, site improvement works testing etc.
The site is suitable for the installation of septic tank and trenched percolation area. Due to the height differences on the site it
is proposed to install an effluent treatment system and pump to a trenched percolation area.
See documents attached for sizing and construction details. All works to be carried out as per the
Manufacturers instructions, EPA COP 2021, Building Regulations and drawings attached with this report.
All separating distances to be achieved and all works to be carried out in accordance with EPA COP 2021
' A discharge of sewage effluent to "waters" (definition includes any or any part of any river, stream, lake, canal, reservoir, aquifer, pond, watercourse or other
inland waters, whether natural or artificial) will require a licence under the Water Pollution Acts 1977-90. Refer to Section 2.4.
SYSTEM TYPE: Septic Tank Systems (Chapter 7)
Tank Capacity (m3) 0 Percolation Area
No. of Trenches
Length of Trenches (m)
Invert Level (m) 0
Mounded Percolation Area
No. of Trenches
Length of Trenches (m)
Invert Level (m) 0
SYSTEM TYPE: Secondary Treatment System (Chapters 8 and 9) and polishing filter (Section 10.1)
Secondary Treatment Systems receiving septic tank effluent
(Chapter 8)
Media Type Area (m2){
Sand/Soil
Soil
Constructed Wetland
Other
Polishing Filter*: (Section 10.1)
Surface Area (rn2)*
Option 1 - Direct Discharge
Surface area (m2)
Option 2 - Pumped Discharge
Surface area (m2)
Depth of Filter
Invert Level
Packaged Secondary
Treatment Systems
receiving raw wastewater
(Chapter 9)
Type
SEE MANUFACTURERS REPOR]
Capacity PE
Sizing of Primary Compartment
m3
Option 3 - Gravity Discharge
Trench length (m)
Option 4 - Low Pressure
Pipe Distribution
0 Trench length (m)
Option 5 - Drip Dispersal
Surface area (m2)
60.00
SYSTEM TYPE: Tertiary Treatment System and infiltration / treatment area (Section 10.2)
Identify purpose of tertiary Provide performance information Provide design information
treatment demonstrating system will provide
required treatment levels
SLOPED SITE
DISCHARGE ROUTE:
SEE MANUFACTURERS
REPORT
SEE MANUFACTURERS
REPORT
Groundwater ✓� Hydraulic Loading Rate * (I/m2.d) ___________J Surface area (m2)
Surface Water ** Discharge Rate (m3/hr)
* Hydraulic loading rate is determined by the percolation rate of subsoil
** Water Pollution Act discharge licence required
QUALITY ASSURANCE:
Installation & Commissioning
SEE MANUFACTURERS REPORT
On -going Maintenance
SEE MANUFACTURERS REPORT
Company: ARC Design Services
Prefix: Mr First Name: Oliver Surname: Farrelly
Address:
Mountain Pole,
Kells,
Co. Meath.
Qualifications/Experience: FETAC Cert Attached
Date of Report: 21 -Apr -2026
Phone: 08795202691E -mail arcdesignservices@gmail.com
Indemnity Insurance Number: I See Insurance Cert Attached
Digitally signed by Oliver Farrelly
Oliver Farrelly Date: 2026.04.21 16:31:45
Signature: +0V001
'1!C..
L -
icy`_ �i'r•.
� �'.
Location of Test Holes
Trial Hole
i Ott t ^, `�stKer �
c' , y r. ;
... t..} , 4n;4
��� t, •� firE.f,.
1 r, r
`?
•�i ti. r.'4fi, A�*" �`�.
•'✓!
I.
T -Test Hole 1
T -Test Hole 2
T -Test Hole 3
P -Test Hole 1
P -Test Hole 2
P -Test Hole 3
651 Bedrock Aquifer `� II
Lm ; , +
GSI Rock Unit Groups 9 0
Permo•Triassic Sandstones
NAME Pe/mo Triasec Sandstones
CalcCIass Calcareous
GSI Vulnerability
Moderate Vulnerability
National Soils
A CJ
AntinPD
IFS_Soil
1 nr nPD
Parent Material
TLP5sS
IFS_Deseriptlon
Acid Deep Poorly Drained Mineral
IFS Type
Deep poorly drained mineral - Derived
from mainly non calcareous parent
materials
Soil Group
Surface water Greys. Ground water
Greys
County
1'OlMGNAN
IFS_Code
31
r
9 II
Subsoils
3811391.49781
PERIMETER
331139149781
PAP MAT
TLPSs5
COUNTY
MONAGHAN
CATEGORY
TO type
DESCRIPT
Sandstone and shale till lLower Paleozoic)
TEXTURE
Ciayc;
Class
Tills ldlamictons)
PlalnEnglish
The subsoil is atilt type. Till Is sediment
depes-ted by m from glaaor ice.
m
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radius
Insuianco Solutions
Insurance Cover Note 2025
linsured Oliver Farrelly T/A Arc Design Services
Address Mountainpole,
Kells,
Meath,
Business Description Ecology Consultancy
Cover Details
Professional Indemnity €1,000,000
Insurer
OPTIS Insurances Ltd T/A Optis Insurance
Policy Number
Inception Date
08/12/2025
Renewal Date
08/12/2026
3" Floor, Block I
Quayside Business Park
Mill Street, Dundalk, Co. Louth
Ireland
042 939 3993
nrnwsadiusinsurancesolutions_ comlie
NOTES:
Exist
Plante_. _
hedging.
x
�1 Stino G.crirultL�rai ca`•_e±0
Vt- 26.31n
COPYRIGHT RESERVED TO P SHANNON BUILDING S CIVIL ENGINEERING LTD
PLANNING PERMISSION DRAWINGS ONLY. CONSTRUCTION DRAWINGS TO BE USED FOR.
CONSTRUCTION PHASE. STRUCTURAL DRAWNGS TO BE ISSUSED BY ENGINEER.
DO NOT SCALE OF DRAWING
ALL DIMENSIONS TO 8E CRECASD ON SITE
ALL WORKS TO BE CARRIED OUT IN ACCORDANCE WITH
CURRENT BUILDING REGULATIONSAND CODES OF TICS
ALL MEASUREMENTS, LEVELS AND CON COO
DETAILS TO BE VERIFIED BY BUIL CONT
DIRECTION OF
GROUNDWATER FLOW
V
/ �0
O _Q O '-O
\ \i::< S O ,Trial Hol
' �: �L -
New S±c rirance peers
ION,_ CO. 1C.
PLANNING SECTION
05 MAY 2026
REV.
DA
SCRIPTION
REF.
P Shannon Building & Civil Engineering Ltd
Lecer{m. Thl. 042 9861551
087 2708685
CLIENT:
T•�--�
U,MM
PROJECT TITLE:
Renovation and Extension to Existing Cottage
DRAWING TITLE;
S' to Lcyput Plt v
PROJECT STAGE:
Planning Permission
DRAWN BY
SCALES
Pizraic Shannon
1 : 250
DWG NO.
DATE
C -1O1
24-02-2026
PROJECT REFERENCE NO.
REVISED
�` Ve � \ \\ CAS
PROPOSED GARDEN N.
54.39x1
�� �_ mm rigid rafed pipes at 1:200, sent
\ �2 \\ \. 60 min ftwe in1ng..;wusafusatsd-s "1 between.
'� ��,'\ \ point o jfltmtion nd water table or bedrock.
SOAKPIT
PARKING
V �
- - - - - . \. __)�\�\\\ 'A'HhI!,!.! 1IHIJ,X " - -' ,/
(lllii �\
SITE NOTICE PROPOSED \.
EXTENSION �.
TiJi
SITE BOUNDARY /\