e attachment - environmental protection agency, ireland ... · of vary sdk light gray day layers,...
TRANSCRIPT
e Attachment No.3
For
insp
ectio
n pur
pose
s only
.
Conse
nt of
copy
right
owne
r req
uired
for a
ny ot
her u
se.
EPA Export 25-07-2013:18:51:04
P. J. Barry, Environmental Manager Lakeland Dairies, Bailiebrough, Co. Cavan.
Client: Lakeland Dairies PraieGt W a n d development
Subject .Your Ref: m&ir vdnombilii assessment
Drilling af w e n werburden holes i3 installdon d pierornetem, purging & sample odleetion
Mi n e rex a Environmental Limited
Dear P.J.,
and rstentlon p n d on the taft bank ofthe rivw. VW havs now instatled P t a l of elwen piarometem to varioua dew in the wsrburden dewb. The area covered by brilrq is approximately 140m by I N m , which indudes the area m d for the retention pond and part of the primary wetland The plamwt%m are in plrs at bation@ 3 ,4 and 8 and a maximum de@h of ten metree was drClled at BMD and BMD. BHSD and BH5 met fdwal at 6.0metres in tcme mrs8 gravel and could not be Qilled to IoPnSbes. Bedrock was rrot encountered at any location. Drilling I- and phmeter WaILs are 8 h in Appendix A a m d . All of the naw piezometers have been cwnptetad a ductile Iron frame and ewer d p u n d level Mth thsir locations marked using w d e n stakss. The pairs of piezometers at I d o n s 3, 4 smlS allm monttonng d groundwater levels at two dMerent teve at M three lomtona Lowtiom 3 and 4 are dose to the rlvar, whsrsss locations 5 and 8 are some 8[kn&cs from the river.
T b general sequema of overkrrden rwedsd l q the mo8t recent drilling compriass neareurfaca ailis and days werlyhg I-, coarse gained (gravel and sand) depdts and $OR day bdm 5 to Bmetrm. 1.4metre d peat wc18 encountered at Won 4 &law Jmetrm and a small thickmm d wt wsm encountered near surfaos at l d o n 8. Ai de- at dl d the drilling lWm at depth (and blw the peat) are uniformly light grey in colour.
It is noted that the depdts encountered in the mm of the deepest hola (BH40 and BHBD) were depasM either by river w lake water (allwid 01 hrretrine). Thma I m r in buth Ides compiw a sequence of vary sdk light gray day layers, Interspsmd horizons of sand and some vegetation. Thesa seem to represent mn annual m i t l o n aeqmm in Hmat w e moStty MM water cwxhm, dNng ttre settlement of the day. Such &@tion 1s normalty ass4ciated with lake dwts wlwe still waters condition$ are more common than in river emironmenb. TI48 finckng of alluvidAacmblne to a depth of 10mdres contrwts Mth the earlier finding o f dsdd deposits Mcrw 7rnetras in BH2 on the other side of the river.
Appendix B P- a gedoglcsl c r m -on d tha vdley. The section is m Strletty correct kcause the piwornetera show do not all lie along a sirqte s d o n line, but have been projectad onto the d o n line. Hmwer, the section BBWBO to illustrate the variation in overkrrdm depmils that are preewrt.
Water level data recorded to date are s h m in Appendiac C. It should b noted that the levels are to an arbitrary datum hause the piezometsrs have not ben r e d d to Ordnance Oaturn. The deto i n w e that there are relWely small dIWef0ncse in hemd in the vafiipus mib bvl that may be a slight upward gradient at lomliorrs 3, 4 and 8. If this wro 80, puncfmter at these I d o m would be lam vulnemble to contamination fmm the surface became the greater head in the Iwer wuld tend to prevent the d-rd mwement o f mter .
1 Wdte to rem fhs current uwon repardlng site irwestigations for the site d the proposed primary wtlarad
For
insp
ectio
n pur
pose
s only
.
Conse
nt of
copy
right
owne
r req
uired
for a
ny ot
her u
se.
EPA Export 25-07-2013:18:51:04
Water sam@es have been Wen from all of the piezomebm at le& once and the results of analyss are o h m in Appendix 0 Thm samples have lxlw b e n hken from BHZ and elenrated concen€retions of ammonia, COD, conducthrity, iron and mtmgpinese are &med. Elevated concentrations of ammonia have also been reported #or B W and BWD, which both monitor soft gey day and davated concentrstiorm of COO, iron and manganm have ben reported from W6S bR these may be natural occurrenw. Other results indcate natwid unmntaminaWl grou-r.
It i proposed that the -and dwelopmsnt w l d h a constructed on the esristlng ground surface so that there would be no exmation into the natural ground formatiom. Having drilled to a depth of 1 Omebes, there wwld therefore be an overburden thickness d at l e a IOrnetrem beneath the dwdopment, Elverlying bedmk The goundwter vulnerability rnapplng guidelines for IrelarK1 (*GrouncWtef Protecbion Schemes", De@+ of Em. 8 L c d Gov. / EPA I GSI, ISSa) st&8 that a Icm vlrlnerabilrty rating appliw vvhen there IB a lrrw permeabiirty s u M l thickmm greatw than 10mtres and that a moderate vulnerability rating applies when there is a moderate permeatili wt#oil tMu~ees greeter than l he t~es . At 1 d m 4 and 8 it has ben detemlined that sand and grave4 are present kR that they are overlain by peat and underldn & day of unknown thickness, M c h both have low permeability. R i5 therefore conduded that bdrock beneath the site b at most moderately vrlnmtili i , but more pobabty has lcrw vulnedti i to wntalrination from the surface. The propw4d development rmuld incoprab m e m w to b r vulneraIili further, such 85 the creaflon d a low permeability base to the pon& md vllelland, thwefore it is conduded that the development wuld pose no contarnindon risk to the environment.
Yours sincerely,
Stephen Ped Chartered Enaneer
Append-
MEL Ikc. Ref.
t 71 aOa4.w
171804B.pdf
171 a01 1 .pU
171 BM 0.w
For
insp
ectio
n pur
pose
s only
.
Conse
nt of
copy
right
owne
r req
uired
for a
ny ot
her u
se.
EPA Export 25-07-2013:18:51:04
a
C
I
For
insp
ectio
n pur
pose
s only
.
Conse
nt of
copy
right
owne
r req
uired
for a
ny ot
her u
se.
EPA Export 25-07-2013:18:51:04
Trial Pits and Boreholes DritZ Logs and Installation Details
February, March & May 2005
0
Lsbtand Dalrleg
Aquifer Vulnerability A%sassment Wetlend Dwdopmont Appendix A
=Mi n e rex 1719024 (Laketsd hiries).ppt
EnuImnrnental Umlted
For
insp
ectio
n pur
pose
s only
.
Conse
nt of
copy
right
owne
r req
uired
for a
ny ot
her u
se.
EPA Export 25-07-2013:18:51:04
xanulw I ' / -
I '
I
c c
I
f
For
insp
ectio
n pur
pose
s only
.
Conse
nt of
copy
right
owne
r req
uired
for a
ny ot
her u
se.
EPA Export 25-07-2013:18:51:04
Hmdrvwk:
I
I I TRIAL PIT LOG I TP 8
Remad#: 1 .L
For
insp
ectio
n pur
pose
s only
.
Conse
nt of
copy
right
owne
r req
uired
for a
ny ot
her u
se.
EPA Export 25-07-2013:18:51:04
I
r
1.
a U
For
insp
ectio
n pur
pose
s only
.
Conse
nt of
copy
right
owne
r req
uired
for a
ny ot
her u
se.
EPA Export 25-07-2013:18:51:04
a
pl a
f f l f i
AaBHI
B.0
Mi n e rex c-9 Environmental Limited
For
insp
ectio
n pur
pose
s only
.
Conse
nt of
copy
right
owne
r req
uired
for a
ny ot
her u
se.
EPA Export 25-07-2013:18:51:04
8orehde m i g n 8 Completion
3.8
M b d
Hw-:
LOOH, varkgdod sandy GRAVEL
Minerex Environmental limited
For
insp
ectio
n pur
pose
s only
.
Conse
nt of
copy
right
owne
r req
uired
for a
ny ot
her u
se.
EPA Export 25-07-2013:18:51:04
P
For
insp
ectio
n pur
pose
s only
.
Conse
nt of
copy
right
owne
r req
uired
for a
ny ot
her u
se.
EPA Export 25-07-2013:18:51:04
Borehole Design & Completion
E -.. ir
2.0
4.0
1 d
3
IA-
6. 4 i Rernarloe:
6oR grey CLAY
im-. grey GRAVEL
I
Complebd deplh b lop of = 4.87m
Mi ne rex a Environmental Limited
For
insp
ectio
n pur
pose
s only
.
Conse
nt of
copy
right
owne
r req
uired
for a
ny ot
her u
se.
EPA Export 25-07-2013:18:51:04
Borehole m l g n 8 Completion
Mi n e rex a- Environmental Limited
For
insp
ectio
n pur
pose
s only
.
Conse
nt of
copy
right
owne
r req
uired
for a
ny ot
her u
se.
EPA Export 25-07-2013:18:51:05
a.0
iir -
e
x H 5 m
i
Flrm gny aandy My CLAY
T I gny CtAY
End of hola
-1
Minerex a Environmental Limited
For
insp
ectio
n pur
pose
s only
.
Conse
nt of
copy
right
owne
r req
uired
for a
ny ot
her u
se.
EPA Export 25-07-2013:18:51:05
Borehole Design 8
P 8
8 0 1
6 1.8
0 2 6
8 1.6
1 6 d
i
- L m , grey &yay. aiRy FlNElMEOlUM SAND
I.
I I Remark:
Mi n e rex a Environmental Limited
For
insp
ectio
n pur
pose
s only
.
Conse
nt of
copy
right
owne
r req
uired
for a
ny ot
her u
se.
EPA Export 25-07-2013:18:51:05
1 BOREHOLE LOG I EH 8s
Remarks:
Mi n e rex cq Environmental Limited
For
insp
ectio
n pur
pose
s only
.
Conse
nt of
copy
right
owne
r req
uired
for a
ny ot
her u
se.
EPA Export 25-07-2013:18:51:05
s 0.9
S 2.8
S 4.6
-
nt ?I -
Remaw: 1
Minerex Environmental Limited
For
insp
ectio
n pur
pose
s only
.
Conse
nt of
copy
right
owne
r req
uired
for a
ny ot
her u
se.
EPA Export 25-07-2013:18:51:05
Sorehde Design & Completion
1
Remark I
Minerex B- En&nmental Limited
For
insp
ectio
n pur
pose
s only
.
Conse
nt of
copy
right
owne
r req
uired
for a
ny ot
her u
se.
EPA Export 25-07-2013:18:51:05
GENERAL LEGEND, ABBREVIA'ITONS AND INSTALLATION DETAILS
CRUSHED STCINE or AWREQAtE or TARMACADAM
I
For
insp
ectio
n pur
pose
s only
.
Conse
nt of
copy
right
owne
r req
uired
for a
ny ot
her u
se.
EPA Export 25-07-2013:18:51:05
Lakeland Dairies - Wetland Development Groundwater Vulnerability Assessment
General 1
Appendix C
M- porntn-
TP 7 TP 8
BH 1 BH 2 TP 7 TP 8
/= TP
BH TP TP BH 1 BH 2 TP 7 TP 0
BH 1 BH 2 Srtdge w t r river TP 7 TP 0 BH 1
monitori well 08/06/2005 1330
6s monitori well o8/06/Mo5 1 4 3 monitori well 08/W200514:40
100.00 94.76
99.85 100.00
99.26
90.81 98.81
1.60
1.94 1.95 ~1.50 1.29 1.54 I .42
0.42 0.82
0.60
198.13 97.99 88.76
98.52
98.40 98.01 98.05
98.26 98.40 98.00 88.05
98.84
97.99
98.21
171 SO1 1 (water level data)\Varlable data p a g e l o f 1
For
insp
ectio
n pur
pose
s only
.
Conse
nt of
copy
right
owne
r req
uired
for a
ny ot
her u
se.
EPA Export 25-07-2013:18:51:05