dewatering and the quarrying industry the quarrying …igi.ie/assets/files/groundwater and...
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Eugene Daly Associates,
Groundwater, Hydrological
and Environmental Consultants.
email: [email protected]
www.edawater.ie
CS
A G
rou
pC
SA
Gro
up
Les Brown
Eugene P. Daly
John Kelly
De
wa
teri
ng
an
d
the
Qu
arr
yin
g I
nd
us
try
De
wa
teri
ng
an
dD
ew
ate
rin
g a
nd
the
Qu
arr
yin
g I
nd
us
try
the
Qu
arr
yin
g I
nd
us
try
Eugene Daly Associates,
Groundwater, Hydrological
and Environmental Consultants.
email: [email protected]
www.edawater.ie
CS
A G
rou
pC
SA
Gro
up
Ob
jec
tiv
es
Ob
jec
tiv
es
Ob
jec
tiv
es
1)To present a summary of water management within the
extractive industry.
2)To discuss potential impacts of extraction below the water
table and the mitigation options thereof.
3)To present tools used to determine the extent of dewatering
impacts.
Eugene Daly Associates,
Groundwater, Hydrological
and Environmental Consultants.
email: [email protected]
www.edawater.ie
CS
A G
rou
pC
SA
Gro
up
Pre
se
nta
tio
n O
utl
ine
Pre
se
nta
tio
n O
utl
ine
Pre
se
nta
tio
n O
utl
ine
Th
is p
rese
nta
tio
n is d
ivid
ed
in
to 3
se
ctio
ns:
1)
the
Iri
sh
co
nte
xt,
2)
ma
na
ge
me
nt
of
wa
ter
in q
ua
rrie
s,
an
d
3)
the
hyd
rog
eo
log
y o
f de
wa
teri
ng
asso
cia
ted
with
qu
arr
yin
g.
Eugene Daly Associates,
Groundwater, Hydrological
and Environmental Consultants.
email: [email protected]
www.edawater.ie
CS
A G
rou
pC
SA
Gro
up
1.
Th
e E
xtr
ac
tiv
e I
nd
us
try i
n I
rela
nd
1.
1.
Th
e E
xtr
ac
tiv
e I
nd
us
try i
n I
rela
nd
Th
e E
xtr
ac
tiv
e I
nd
us
try i
n I
rela
nd
•T
he
GS
I 2
00
1 ‘D
ire
cto
ry o
f A
ctive
Qu
arr
ies,
Pits a
nd
Min
es’
tally
s4
15
site
s in
Ire
lan
d (
Do
yle
et al.,
20
01
).
•C
om
bin
ed
ag
gre
ga
te p
rod
uctio
n f
rom
ro
ck q
ua
rrie
s a
nd
sa
nd
& g
rave
l p
its is e
stim
ate
d t
o 1
35
mill
ion
tp
a.
•T
he
ma
jori
ty o
f q
ua
rrie
s e
xce
ed
20
0,0
00
tp
aa
nd
ma
ny
exce
ed
50
0,0
00
tp
a.
•L
ime
sto
ne
, va
rio
us s
an
dsto
ne
an
d
vo
lca
nic
sa
re t
he
ma
in r
ock t
yp
es
use
d a
s a
gg
reg
ate
s.
Eugene Daly Associates,
Groundwater, Hydrological
and Environmental Consultants.
email: [email protected]
www.edawater.ie
CS
A G
rou
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Gro
up
1.1
Ch
ara
cte
ris
tic
s o
f Ir
ish
Ge
olo
gy
1.1
1.1
Ch
ara
cte
ris
tic
s o
f C
ha
rac
teri
sti
cs
of
Iris
h G
Iris
h G
eo
log
eo
log
yy
•A
pp
roxim
ate
ly 5
0%
of
Ire
lan
d’s
ro
ck t
op
og
rap
hy is lim
esto
ne
.
•B
ed
rock s
tra
ta a
re in
du
rate
d b
ut
the
up
pe
r p
art
of
the
be
dro
ck
ha
s b
ee
n s
ign
ific
an
tly w
ea
the
red
.
•F
au
ltin
g a
nd
fra
ctu
rin
g a
re a
bu
nd
an
t.
•B
ed
rock is o
ve
rla
in b
y Q
ua
tern
ary
su
bso
ils.
Th
e lith
olo
gy,
thic
kn
ess a
nd
pe
rme
ab
ility
of th
ese
are
ve
ry v
ari
ab
le.
Eugene Daly Associates,
Groundwater, Hydrological
and Environmental Consultants.
email: [email protected]
www.edawater.ie
CS
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rou
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1.2
Ch
ara
cte
ris
tic
s o
f Ir
ish
Hyd
rog
eo
log
y1
.21
.2C
ha
rac
teri
sti
cs
of
Iris
h H
yd
rog
eo
log
yC
ha
rac
teri
sti
cs
of
Iris
h H
yd
rog
eo
log
y
•R
ain
fall
is p
len
tifu
l a
nd
we
ll-d
istr
ibu
ted
th
rou
gh
ou
t th
e y
ea
r. A
sig
nific
an
t a
mo
un
t o
f th
e w
inte
r re
ch
arg
e is “
reje
cte
d”.
•F
issu
re f
low
pre
do
min
ate
. S
tora
ge
is r
ela
tive
ly lo
w b
ut
thro
ug
h
flo
w c
an
be
qu
ite
ra
pid
, p
art
icu
larl
y n
ea
r th
e s
urf
ace
.
•H
yd
rau
lic c
on
ditio
ns a
re v
ari
ab
le o
ve
r sh
ort
dis
tan
ce
s a
nd
flo
w
pa
ths t
en
d t
o b
e s
ha
llow
an
d s
ho
rt.
•W
ate
r ta
ble
te
nd
s t
o w
ith
in 1
0m
of
the
su
rface
alth
ou
gh
th
ere
are
a f
ew
are
as t
ha
t a
re n
ota
ble
exce
ptio
ns.
Eugene Daly Associates,
Groundwater, Hydrological
and Environmental Consultants.
email: [email protected]
www.edawater.ie
CS
A G
rou
pC
SA
Gro
up1.3
Iris
h A
qu
ife
rs1
.31
.3Ir
ish
Aq
uif
ers
Iris
h A
qu
ife
rs
Sh
ale
s / m
udsto
nes,
arg
illaceo
us
lime
sto
nes a
nd
gra
nite
s
Aq
uita
rd
(Po
orl
y p
rod
uctive
aq
uifer)
Little c
ontr
ibution t
o b
ase
flo
w.
Fe
w s
prin
gs,
ma
ny s
ha
llow
see
ps.
Re
lative
ly s
ma
ll flow
s c
an
be ind
uce
d
Mo
dera
tely
pro
ductive
on
ly in
loca
l
zon
es.
Sm
all
are
as k
ars
tifie
d/ fr
actu
red
lime
sto
nes.
Sa
ndsto
ne
s
Min
or
Aqu
ife
r
(Loca
lly I
mp
ort
ant)
Oft
en
confin
ed
str
ata
.
Lim
ite
d c
ontr
ibution t
o b
aseflo
w.
Fe
w s
ign
ific
an
t sp
rin
gs.
Sig
nific
ant
flo
ws c
an
be in
duce
d
Sa
ndsto
ne
s a
nd v
olc
an
ics
Ma
inly
uncon
fin
ed
str
ata
.
Ma
jor
con
trib
utio
n t
o b
aseflo
w.
La
rge s
prin
gs.
La
rge f
low
s c
an b
e in
duced
Ka
rstfr
actu
red
lim
esto
ne
s a
nd
do
lom
ites
Ma
jor
Aqu
ife
r
(Re
gio
na
lly I
mp
ort
an
t)
Flo
w R
eg
ime
Str
ata
Aq
uif
er
Cla
ss
ific
ati
on
Eugene Daly Associates,
Groundwater, Hydrological
and Environmental Consultants.
email: [email protected]
www.edawater.ie
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up
1.3
Iris
h A
qu
ife
rs (
co
nt.
)1
.31
.3Ir
ish
Aq
uif
ers
(c
on
t.)
Iris
h A
qu
ife
rs (
co
nt.
)
•T
he
Ge
olo
gic
al S
urv
ey o
f Ir
ela
nd
ha
s c
olla
ted
exte
nsiv
e
hyd
rog
eo
log
ica
ld
ata
se
ts s
o t
ha
t a
qu
ife
r m
ap
s a
re a
va
ilab
le
na
tio
na
lly.
•L
oca
l va
ria
tio
ns in
str
uctu
re a
nd
lith
olo
gy
me
an
th
at
the
se
ma
ps,
alth
ou
gh
exce
llen
t fo
r d
esk s
tud
y a
nd
site
se
lectio
n,
sh
ou
ld n
ot
be
use
d a
s a
su
bstitu
te f
or
site
in
ve
stig
atio
n.
•H
yd
rog
eo
log
ica
lch
ara
cte
risa
tio
n s
ho
uld
be
co
mp
lete
d o
n a
ll
de
wa
teri
ng
asse
ssm
en
ts.
Eugene Daly Associates,
Groundwater, Hydrological
and Environmental Consultants.
email: [email protected]
www.edawater.ie
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A G
rou
pC
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Gro
up
Gro
un
dw
ate
r D
isch
arg
e f
rom
a R
eg
ion
ally
Imp
ort
an
t A
qu
ife
r
Gro
un
dw
ate
r D
isch
arg
e f
rom
a R
eg
ion
ally
Imp
ort
an
t A
qu
ife
r
Eugene Daly Associates,
Groundwater, Hydrological
and Environmental Consultants.
email: [email protected]
www.edawater.ie
CS
A G
rou
pC
SA
Gro
up
Gro
un
dw
ate
r D
isch
arg
e f
rom
a R
eg
ion
ally
Imp
ort
an
t A
qu
ife
r
Gro
un
dw
ate
r D
isch
arg
e f
rom
a R
eg
ion
ally
Imp
ort
an
t A
qu
ife
r
Eugene Daly Associates,
Groundwater, Hydrological
and Environmental Consultants.
email: [email protected]
www.edawater.ie
CS
A G
rou
pC
SA
Gro
up
Es
tim
ate
s o
f g
rou
nd
wa
ter
infl
ow
s t
o a
nu
mb
er
of
roc
k q
ua
rrie
s
thro
ug
ho
ut
Ire
lan
d.
02468
10
12
01
02
03
04
05
06
07
08
0
Es
tim
ate
s o
f la
te s
um
me
r d
isc
ha
rge
ra
te (
l/s
)
Approximate volume of rock extracted below
W.T. (m3X10
6)
Aq
uita
rds
Min
or
Aq
uif
ers
Ma
jor
Aq
uif
ers
Eugene Daly Associates,
Groundwater, Hydrological
and Environmental Consultants.
email: [email protected]
www.edawater.ie
CS
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up
2.
Ma
na
ge
me
nt
of
Wa
ter
in Q
ua
rrie
s
2.
2.
Ma
na
ge
me
nt
of
Wa
ter
in Q
ua
rrie
s
Ma
na
ge
me
nt
of
Wa
ter
in Q
ua
rrie
s
Wa
ter
ma
na
ge
me
nt
falls
in
to 3
ca
tag
ori
es:
1)
su
pp
ly o
f p
ota
ble
an
d p
roce
ss w
ate
r,
2)
ma
na
ge
me
nt
of ra
infa
ll in
cid
en
t w
ith
th
e s
ite
, a
nd
3)
ma
na
ge
me
nt
of
gro
un
dw
ate
r in
flo
ws t
o e
xca
va
tio
n
Eugene Daly Associates,
Groundwater, Hydrological
and Environmental Consultants.
email: [email protected]
www.edawater.ie
CS
A G
rou
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Gro
up2.1
Wa
ter
Su
pp
ly
2.1
2.1
Wa
ter
Su
pp
ly
Wa
ter
Su
pp
ly
•T
he
vo
lum
es r
eq
uir
ed
fo
r p
ota
ble
wa
ter
are
of
the
ord
er
5-
10
m3/d
ay a
nd
ca
n b
e s
up
plie
d v
ia m
ain
s o
r p
riva
te s
ou
rce
.
•P
roce
ss w
ate
rs a
re r
eq
uir
ed
fo
r ag
gre
ga
te w
ash
ing
an
d
du
st
su
pp
ressio
n m
ea
su
res a
s w
ell
as a
ncill
ary
fa
cili
tie
s
su
ch
as r
ea
dym
ixp
lan
t. V
olu
me
s r
eq
uir
ed
te
nd
to
be
30
0-
60
0m
3/d
ay d
ep
en
din
g o
n q
ua
rry o
utp
ut.
•T
he
pro
ce
ss w
ate
rs a
re u
nlik
ely
to
be
pro
vid
ed
by m
ain
s a
nd
mu
st
be
eith
er
ab
str
acte
d f
rom
gro
un
dw
ate
r
or
recycle
d f
rom
ru
n-o
ff.
Eugene Daly Associates,
Groundwater, Hydrological
and Environmental Consultants.
email: [email protected]
www.edawater.ie
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2.2
Wa
ter
Ma
na
ge
me
nt
2.2
2.2
Wa
ter
Ma
na
ge
me
nt
Wa
ter
Ma
na
ge
me
nt
•It
is a
re
qu
ire
me
nt
bo
th f
rom
th
e p
lan
nin
g a
uth
ou
rity
bu
t a
lso
fo
r o
pe
ratio
na
l e
ffic
ien
cy t
ha
t a
ll ru
n-o
ff f
rom
site
is
co
ntr
olle
d.
•R
ain
fall
allo
we
d t
o r
un
-off
mu
st b
e a
tte
nu
ate
d t
o r
em
ove
fin
es a
nd
co
nta
min
en
tsp
rio
r to
dis
ch
arg
e.
Th
is is n
orm
ally
a
ch
ieve
d u
sin
g s
ett
lem
en
t la
go
on
s a
nd
hyd
roca
rbo
n
inte
rce
pto
rs.
Eugene Daly Associates,
Groundwater, Hydrological
and Environmental Consultants.
email: [email protected]
www.edawater.ie
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rou
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up
2.2
Wa
ter
Ma
na
ge
me
nt
(co
nti
nu
ed
)2
.22
.2W
ate
r M
an
ag
em
en
t (c
on
tin
ue
d)
Wa
ter
Ma
na
ge
me
nt
(co
nti
nu
ed
)
•A
25
-ye
ar
rain
fall
eve
nt
will
eq
ua
te t
o 8
0-1
00
mm
ra
infa
ll fa
llin
g o
ve
r a
48
hr
pe
rio
d.
Fo
r a t
yp
ica
l m
ed
ium
siz
ed
qu
arr
y
of
20
ha
th
is w
ill g
en
era
te r
un
-off
of
c.7
,00
0m
3/d
ay.
•T
he
qu
arr
y v
oid
ca
n b
e u
se
d a
s s
tora
ge
to
re
tain
wa
ters
in
cid
en
t w
ith
it.
Ho
we
ve
r, r
un
-off
fro
m y
ard
an
d p
roce
ss
are
as t
en
d t
o b
e d
isch
arg
ed
du
rin
g t
he
eve
nt.
Th
is c
an
e
qu
ate
to
1,0
00
m3/d
ay,
wh
ich
mu
st
be
att
en
ua
ted
.
Eugene Daly Associates,
Groundwater, Hydrological
and Environmental Consultants.
email: [email protected]
www.edawater.ie
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Gro
up
Cu
t o
ff d
rain
to
re
duce
surf
ace
wa
ter
ingre
ss to
qu
arr
y v
oid