Geol 202 Groundwater Fall 2009 Instructor: Tim Lincoln Office: 122 Palenske, x0486 Class M-W-F 10:10 -11:00 (lecture), Tu 2:10-5:00 (lab) Text: C.W. Fetter, Applied Hydrogeology, 4th. Macmillan (Fetter) Course objectives This course has two general objectives. It will help you become comfortable with specific elements of hydrology; it will also allow you to develop skills that are more widely applicable. Most broadly the course describes the ways water behaves on and in the shallow earth, and the conceptual and physical tools hydrologists use to study this behavior. We will look at the following important concepts: Water budgets : quantitatively describing the movement of water through an area, including precipitation, evapo-transpiration, groundwater recharge and discharge, and stream flow The nature and movement of groundwater including characterization of aquifers, quantification of flow, and wells and well tests The chemistry of groundwater including basic natural water chemistry and an introduction to principles of contaminant hydrogeology The basic skills emphasized and developed include. Introduction to hydrologic laboratory and field techniques including stream gauging, seepage measurement, piezometer installation, permeability and specific yield measurements, well design and installation, surveying, and simple well tests. Field notes As a quantitative discipline, hydrology requires that detailed, accurate and accessible records be kept. Notes will be graded on these characteristics as well as on content Numerical modeling is at the heart of hydrology. We will work at several levels, from “home-made” spreadsheet models to sophisticated professional programs. Work with large data sets Some of the data we will generate (one reading per second for several hours) will require that you work with large amounts of data in spreadsheets and specialized programs Work with numerical data requites that you think about sources of error, significant figures, and statistical validity. Reading and understanding hydrogeology articles requires that you understand technical terms and techniques, the goals of the work, and the results. Ideally, you will be able to understand the limits and potential flaws in the work as well as the author’s stated conclusion. Class schedule week Aug 24 reading Fetter ch. 1, 2 lab Water budget & Recharge calc Recession demo Recharge calc (in class) Duration curves Monday, Labor Day Darcy tube Estimating K Properties of aquifers K, from grain size n, Sy, Sr Quiz streams (Friday) Properties of aquifers:T, Calculating Kv Ss, S, anisotropy, Specific storage potentiometric surface demo Fetter ch. 2 Stream gauging Seepage meter installation. Fetter ch 3.1-3.7 Well installation. Fetter ch 3.8-3.12 Well installation, survey and slug tests. Sept 21 Groundwater flow: grad Analytical H, Darcy flux, equations problems, of flow calculating water table elevations Fetter ch 4.1-4.10 Sept 28 Flow nets, anisotropy, refraction Friday Exam I Graphical flow net Fetter ch 4.11-4.14 Lab work with samples (Run in one of previous three weeks if weather dictates). Interpretation of test results Numerical solution to flow net problems, Visual mod flow Oct 5 Flow to wells: principles, steady state equations, timedrawdown relations in various settings Wells, non-equilibrium conditions, curve matching; slug tests Analytical solutions to well testing Fetter ch 5.1-5.4 V mudflow model of field area; Project selection Well tests, curve matching Fetter ch 5.5-5.6 No lab Fall Break Fetter 5.7-5.10 Work independently on project Well tests Aug 31 Sept 7 Sept 14 Oct 12 MT fall break Oct 19 Oct 26 topics Water cycle and budgets, stream gauging Recessions, flow prediction recharge calculations activities Rain fall problem GSA Boundaries and interference Exam 2 (Friday) Oct 29 Nov 2 Nov 9 Nov 16 Nov 23 Nov 30 Dec 11 Well tests solved on spreadsheet Recharge: water in soil, theoretical models, seasonality Regional Groundwater flow: Topographic effects, Lakes and wetlands, modeling. Geology of Groundwater Fetter ch 6 V mod project Fetter ch 7 Fetter ch 8 VMod project work Chemistry: types of reaction, Carbonate chemistry, major ion chemistry, and water facies Contaminant Hydro: Journal Articles principles, advection, (Friday) diffusion, dispersion, retardation, degradation, multi-phase. Fetter ch 9 Work on Project Fetter Ch 10 Local model 1 Woburn game Thanksgiving WedFriday Common contaminants: septic, landfills, chemical spills, mining, remediation Final Exam 8-10 Journal Articles Local model 2 Paper reports Report on models Grading: 3 Exams @ 150 Quiz Field notes Lab exercises In class exercises Journal Article report Total 450 50 150 150 100 100 1,000 Grade assignment: 900 = 4.0; 870 = 3.7; 830 = 3.3; 800 = 3.0….. All labs must be completed to receive credit for the course. Please save all graded material until the end of the term. If you have a diagnosed learning disability or need special consideration for any reason, please come talk to me. Labs are due at the start of the next lab period, unless otherwise announced I encourage you to work on homework problems and laboratories in groups. However, simply copying another student’s work constitutes academic dishonesty. Need help? - Ask for it! When I was learning this material, I found that I learned the most by working problems, playing with real data, and seeing how well things work out when I tried to use equations to match real observations. I also found that there are lots of little traps…using the wrong units, reading a graph wrong, violating an assumption on which an equation is based. These are mistakes you almost have to make once (unless you are better than me!) in order to avoid them in the future. But if you get stuck, I’ve probably been there, and most likely can help you out. Please ask for help! Learning Disabilities If you have a disability and may require accommodations or modifications in class instruction or course-related activities, please contact the Learning Support Center (LSC) staff who can arrange for reasonable accommodations for students who provide documentation of their disability/condition. If you are presently registered with the LSC and have requested accommodations through the LSC for this semester, please plan to meet with me as early as possible to discuss the best way to implement these accommodations in this class. The LSC is located on the third floor of the Seeley Mudd library or call 517-629-0825. Attendance: Regular attendance in all classes is expected. Every absence from class is inevitably a loss—usually one which can never be made up. I will help you if you must miss a class, but it is your responsibility to approach me. You should obtain lecture notes and or talk with me about material missed. It is your responsibility to get in-class exercises from me and to complete them in a timely way if you miss the class in which they were completed. You have the responsibility to inform me, whenever possible in advance, of an absence due to serious or prolonged illness. Verification of absences due to emergency reasons, may be obtained from the Office of Residential Life. Academic honesty. I hate to have to raise this subject, but just so there are no misunderstandings, please read the following statement from the College Catalog: “As an academic community, Albion College is firmly committed to honor and integrity in the pursuit of knowledge. Therefore, as a member of this academic community, each student acknowledges responsibility for his or her actions and commits to the highest standards of integrity. In doing so, each student makes a covenant with the college not to engage in any form of academic dishonesty, fraud, cheating, or theft.” Faculty members may indicate penalties for academic dishonesty in the syllabus.” You should also refer to the full statement on academic dishonesty available in the Student Handbook, available on line.