Average molar ratios of N[O.sub.3.sup.-]/[Cl.sup.-], N[O.sub.3.sup.- ]/[Na.sup.+], and N[O.sub.3.sup.-]/[K.sup.+] were calculated for each observation well
for both data sets and used for the estimation of the molar ratio slope in the spatially grouped observation wells
, which in most cases coincide with the well field's inflow areas (Sasnjak and Zitnjak, Petrusevec, Ivanja Reka, Mala Mlaka, Velika Gorica, Zaprude, and Kosnica; see Figure 1).
(1984) A brief review of kriging and its application to optimal interpolation and observation well
Input values for the initial head were obtained from the observation well
of the Keila-Kukruse aquifer and from the knowledge of mine dewatering, in case of which water table lowered down to the bottom layer of oil shale.
The first of these methods involves the installation of a shallow (usually less than ten ft in depth) and deep observation well
"nest" located on the edge of the surface water feature.
where h(x, t) [L] is the hydraulic head, x [L] is the distance of the observation well
from the tidal boundary, Ss [[L.sup.-1]] is specific storage, K [L/T] is the hydraulic conductivity, and e [L/T] represents accretion.
said Wednesday it has detected very high radioactivity levels in groundwater from an observation well
at its Fukushima Daiichi nuclear power plant crippled by the March 2011 earthquake and tsunami.
HR-6 was drilled in Upper Cretaceous sediments (Turonian marlstones and siltstones) approximately 2.5 km south of the HPFZ, near the town of Hronov.
Nine observation well
clusters, located to evaluate conditions in all directions from the collection well, are equipped with continuous water level recorders that will register changes in the water table elevation caused by recharge pumping.
This observation well
is situated approximately 10 m from a domestic well, used to supply water.
The Observation wells
were completed using HQ sized diamond drill holes, allowing for the installation of 1.5 inch diameter PVC pipe with a slotted well-screen set at targeted depths within the ore zone, overlying sandstone, adjacent sandstone, or underlying basement.
In particular, 16 samples from 41 observation wells
around Noksapyeong Station on Line 6 revealed levels of benzene 1,170 times higher than the government-set safety limit.