|
Dye Tracing Projects
(1969 to present)
Out of more than
2500 successful dye tracing tests worldwide we decided to list the most
significant ones. The list below shows the great variety of
different hydrogeologic environments Otzhydro Inc. has worked in:
Legend for the dye
abbreviations used at the bottom of this page.
| Year |
Project
|
Dyes
used
|
2004
|
 | Muttenz,
Switzerland: Determination of groundwater flow paths within and
adjacent the landfill of the Basel pharmaceutical industry. |
|
NAP,
URA, EOS, PYR, SRB, SRG
|
|
2003
|
 |
County
Department of Environmental Conservation, Zug,
Switzerland: Groundwater flow determination in old glacial erosion
channels for Zürich, the largest city in Switzerland. |
|
SRG,
EOS, URA
|
|
2002
|
 |
Swiss
Department of Transportation, Manno, Switzerland: Impact assessment of
the highway onto the water supply of the City of Lugano (population
80,000) |
|
using
all tracers listed under abbreviations
|
|
2001
|
 |
Mineral Source,
Zurzach and water supply of Town of Klingnau, Switzerland: Tracing the
impact of agricultural practices in the vicinity (2.6 km) of the
source. |
|
using
all fluorescent tracers listed under abbreviations
|
|
2000
|
 |
Holcim (www.holcim.com),
Cumarebo,
Venezuela: Impact assessment of quarry to adjacent springs. |
|
URA,
NAP, SRB
|
|
1999
|
 |
Wasserwerke
Zug, Switzerland: Determination of well head protection areas. |
|
using
all fluorescent tracers listed under abbreviations
|
|
1998
|
 | County
Department of Environmental Conservation, Solothurn, Switzerland:
Swiss National Science Foundation: Hydrogeologic investigation of the
Gempenplateau. |
|
using
all fluorescent tracers listed under abbreviations
|
|
1997
|
 | Swiss Federal
Railway, AlpTransit, Piora, Switzerland: Second dye-tracing test for
the longest railway tunnel on Earth over a distance of 17 km. |
|
URA,
PYR, NAP, SRG
|
|
1996
|
 | County
Department of Environmental Conservation, Lucerne, Switzerland:
Dye-tracing for ETH Zürich to evaluate preferential flow-paths in a
large (10 km2) unconsolidated aquifer |
 | Water Supply
Horgen, Switzerland: Well head protection delineation |
|
URA,
EOS, NAP, SRB
using
all tracers listed under abbreviations
|
|
1995
|
 |
Pertusio, Santa
Maria Valley, Switzerland: Determination of the Pertusio Spring
watershed. |
 |
County
Department of Environmental Conservation, Solothurn, Switzerland:
Evaluation of preferntial flow paths in the Jura Mountains in
collaboration with ETH Zürich. |
|
URI,
EOS, PYR, SRB, NAP, Duasine
using
all fluorescent tracers listed under abbreviations
|
|
1994
|
 |
Swiss Federal
Railway, AlpTransit, Uri, Switzerland: Groundwater protection
delineation. |
 |
Saudarkrokur,
Iceland: Construction of mineral water well and design for future
bottling factory including worldwide distribution. |
|
URI,
EOS, PYR, RWT, NAP, Duasine
|
|
1993
|
 | Swiss Federal
Railway, AlpTransit, Piora, Switzerland: First dye-tracing test for
the longest railway tunnel on Earth. |
 | Saudarkrokur,
Iceland: Mineral water prospection including source identification. |
|
URA,
EOS, PYR, NAP, Duasine
URA,
NAP, EOS
|
|
1992
|
 |
El Ghrass
(above existing Mohammed V Dam), Taourirt, Marocco: Evaluation of
possible leakage for future El Ghrass Dam. Work done for the King of
Marocco Hassan II. |
 |
County
Department of Environmental Conservation, Zug, Switzerland:
Delineation of 7 well-head protection areas |
|
URI,
EOS, PYR, RWT, NAP, Duasine
7
dye-tracing tests totally using all fluorescent tracers listed under
abbreviations
|
|
1991
|
 | Nuclear Power
Plant, Neckar-Westheim, Germany: Infiltration determination and
solution capacity of the Neckar River groundwater under the nuclear
power plant to determine possible subduction. |
|
2
dye-tracing tests: URA EOS, PYR, RWT, NAP, Duasine
|
1990
|
 | Universal
Travel Agency (www.universal-travel.com), Jolly Harbor, Antigua:
Hydrogeologic assessment of a future port including 2000 planned
residencies. Assessment included design to use renewable energy
sources. |
|
general
hydrologic methods used
|
|
1989
|
 | Ciba-Geigy AG
(www.ciba.ch), Kaisten, Switzerland: Investigation of the waste water
treatment plant. |
|
16
dye-tracing tests totally using all tracers listed under abbreviations
|
|
1988
|
 | Mineral
water, Rhäzuns, Switzerland: Integrity test of the mineral water
production line and assessment of possible contamination issues. |
|
Background
fluorescence
|
|
1987
|
 | Swiss
National Science Foundation (www.snf.ch): Decrease of groundwater
temperature using its thermal energy for heating purposes. |
 | Mineral
water, Rhäzuns, Switzerland: Well head protection delineation |
|
general
hydrologic methods used, URA, SRB, EOS, HTO, NaCl, Borax
|
|
1986
|
 | Swiss Federal
Railway, Zürich, Switzerland: Crossing of railway tunnel under the
Limmat River, river water infiltration localization. |
|
URA,
SRB, SRG, RWT, EOS, PYR, Duasine
|
|
1984
|
 | Löwenbräu
Brewery, Zürich, Switzerland: Integrity check of brewing water supply
contaminated by intruding wastewater. |
|
PYR,
RWT, URA, EOS
|
|
1983
|
 | Neuhüsli,
Neukirch, Switzerland: Site evaluation for future landfill. Tests
included distances of 2 km in sandstone. |
|
PYR,
RWT,URA, EOS
|
|
1982
|
 | GWB (Gas und
Wasserwerke), Town of Biel, Switzerland: Well-head protection
evaluation of the Merlin Springs (80% of the city water supply) |
|
2
dye-tracing tests using URA, EOS, PYR, SRB, SRG
|
|
1981
|
 | Parkhotel and
County Laboratory, Brunnen, Switzerland: Groundwater investigation to
use it for of heating purposes. |
|
general
hydrologic methods used
|
|
1980
|
 | Bettelberg,
Lenk, Switzerland design, development and implementation of water
supply in alpine terrain. |
|
general
hydrologic methods used
|
|
1979
|
 | Hardwasser
AG, Pratteln, Switzerland: Integrity check of water supply for the
City of Basel (population 200,000) |
 | GWB (Gas und
Wasserwerke), Town of Biel, Switzerland: Risk assessment for possible
nuclear contamination of town water supply. |
|
URA,
SRB, EOS
|
|
1977-1979
|
 | Scientific
evaluation of a possible deposit for high-level radioactive waste for
NAGRA Swiss (www.nagra.ch) |
|
general
hydrologic methods used, 5 different dye-tracing tests using
simultaneously NaCl, URA, SRB, SRG, PYR EOS, Duasin
|
|
1976
|
 | Hydrologic
investigation on the future site of the nuclear power plant Gösgen,
Switzerland |
|
general
hydrologic methods used, URA, SRB, SRG, EOS
|
|
1975
|
 |
Swiss Federal
Court expert opinion, Neuenegg, County of Bern, Switzerland:
Delineation of industrial property versus well-head protection
delineation. |
|
NaCl,
URA, SRG
|
|
1974
|
 | Vigier Inc.
cements, Rondechâtel, Switzerland: Delineation of further querry
excavation sites. |
 | Selve Metall
Processing factory, Thun, Switzerland: Delineation of well-head
protection. |
|
NaCl,
URA, SRG
|
|
1973
|
 |
Village of Boll
and Walkringen, county of Bern, Switzerland: Delineation of well-head
protection. |
|
NaCl,
URA, SRG
|
|
1972
|
 |
SWG (Seeländische
Wassergemeinschaft), Worben, Switzerland: Delineation of well-head
protection. |
|
NaCl,
URA, SRG
|
|
1971
|
 | Swiss County
Court expert opinion, Horben, Switzerland on the Horben landslide. |
|
general
hydrologic methods used, no dye tracing
|
|
1970
|
 | Swiss Federal
Railway, Bözingermoos, Switzerland: Site assessment study for large
railway terminal situated in unconsolidated glacial material. |
|
general
hydrologic methods used, no dye tracing
|
|
1969
|
 | OFIMA (Officine
Hydroelectrice della Maggia), Maggia Valley, Switzerland: integrity
test of intake conduit of the Lago Cavagnioli Dam. |
|
SRG,
HTO
|
Fluorescent dye
abbreviations:
|
URA
|
Uranine
(or Na-fluoresceine) |
CAS:
|
|
NAP
|
Na-naphtionate |
CAS:
|
|
EOS
|
Eosin |
CAS:
|
|
SRB
|
Sulforhodamine
B |
CAS:
|
|
SRG
|
Sulforhodamine
G extra |
CAS:
|
|
PYR
|
Pyranine |
CAS:
|
|
RWT
|
Rhodamine
WT |
CAS:
|
|
LIS
|
Lissamine |
CAS:
|
|
|
|
|
|
NaCl
|
Table
salt |
|
|
HTO
|
Tritium |
|

This page was last updated on 12/07/04
. Webpage created by Martin H. Otz, 2004.
|