1

2

SiteFX Environmental Data Management System

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Sitefx GW Database ► Database Management system with:

Data entry, sample tracking, and scheduling

Sample program design and reconciliation

Data standardization (analytical chemical names and units)

Data validation (including range checking) and data criteria screening

Reporting and advanced time-series graphing

Parametric and non-parametric statistics and trend analysis

4

VIEWLOG Hydrogeologic

Modelling System

5

VIEWLOG Borehole GIS ► VIEWLOG provides integrated data management,

visualization, analysis and modelling tools

GIS, with intelligent, geo-science data objects

Not just display, but meaningful data interaction

Scalable interpretation tools, from a single fracture to an entire watershed

Open, flexible, database design, with dynamic interaction with any table or query

► Over 700 users worldwide

Well Name: 34C

Elevation: 192.939 Reference: top of casing

Metres Stratigraphy

Sty

olit

es

BP

F

Ve

rt.

Fra

ct.

Core

Bre

ak Dip

(degrees)20 50

Borehole Dia.

(mm)70 90

Temp

(Deg C.)10.3 10.7

Gamma

(cps)0 120

Cond.

(mS/m)0 1

16 in Res

(Ohm-m)0 10000

52 in Res

(Ohm-m)0 10000

T - 0.5 m

(m^2/s)1E-11 0.1

T - 2m

(m^2/s)1E-11 0.1

190

180

170

160

150

Overburden

Eramosa

Vinemount Unit 2

Vinemount Unit 1

Goat Island(Marker Bed)

Goat Island

Gasport

DecewRochester

6

VIEWLOG WebServer ► VIEWLOG Webserver provides data access for a

wide range of users

Emphasis on ease of use

► On-line functions include:

Interactive mapping

Color contouring

Borehole logs

2-point cross sections

Basic query select functions

Time-series graphing

US Geologic Survey Web Site built using VIEWLOG/Webserver

7

VL-GSFLOW Integrated GW/SW Modelling System

8

VL-GSFLOW

► GSFLOW: an open-source, fully-integrated Surface Water and Groundwater Modelling system

Surface Water model based on PRMS

Groundwater model based on MODFLOW-NWT

► Key VIEWLOG functions include:

Pre- and Port Processor for creating GSFLOW input files and reading GSFLOW outputs

Time series analysis tools

Gridded data animation tools

9

GSFLOW is a combination of two USGS codes: MODFLOW-NWT and PRMS

PRMS handles climate and soil water processes MODFLOW simulates GW flow, unsaturated flow (UZF),

streamflow and lakes (SFR2/LAK3)

GSFLOW Processes

10

VL-GSFLOW Total Flow Routing

► GSFLOW simulates total flow in the streams, including runoff and baseflow discharge

11

VL-GSFLOW Water Level Animations

► VL-GSFLOW provides full animation and hydrograph analysis tools

12

VL-GSFLOW Overland Flow

► GSFLOW simulates both overland flow and interflow

13

Soil Zone Storage and Cascade

► GSFLOW can simulate the storage and 3D movement of soil zone water using a cascading inter-cell network

Till uplands

Flow accumulates in swales

14

Storage and 3D movement of water in the Soil Zone

► Soil zone moisture content

Beach Deposits

Till Upland - Till uplands drain both vertically and downslope - Lateral drainage to the beach deposits from the till uplands enhances recharge - Soil zone storage helps supply rate limited GW recharge to the lower layers

15

Soil Zone Drainage (GW Recharge) ► When moisture is available (winter months) there is a near constant, but rate

limited, drainage from the soil zone Beach Deposits Till Upland

16

VL-GSFLOW GW Recharge

► GSFLOW provides ground water recharge estimates on a daily basis

17

GW Discharge to the Soil Zone (Daily)

Daily GW discharge to soil zone

18

Time-varying GW Feedback

► The “contributing area” that generates true runoff depends on the time-varying position of the water table

► Example: Dunnian process response area varies seasonally between 5 and 25% of the study area

► Runoff occurs, but it is a groundwater dependent process!

19

Water Table Fluctuation across Layers ► Water Table rises and falls through multiple thin, variably saturated, layers

Highly variable response to precipitation events

► GSFLOW NWT Solver – no dry cell problems!

Water Table

GW Discharge

20

MODFLOW-NWT stable even when modelling steep gradients Shows daily, seasonal, and year-to-year response in heads

Limestone Creek

Milton Outlier

21

Simulated Stage in Reservoirs

OBSERVED PREDICTED

Kelso Lake

Hilton Falls

22

Simulated Heads in Wells

OBSERVED PREDICTED

PGMN Well W00008

Quarry Well BH-112

Mohawk Raceway Well – Opsteen Farm

23

Simulated Heads in Wellfield Monitors

OBSERVED PREDICTED

Campbellville – MW2/05B

Kelso TW3/67

Kelso TW4/67

Kelso wells out of phase with normal seasonal response. Shows influence of high leakage from lake at summer stage

24

Wellfield response to Reservoir levels

Limestone Creek

Milton Outlier