Q = C I A 

Q = V A = W D V

a = -(1/t) ln Q/Q₀

Q = Q₀ e^-at

T =(n+1)/m   = 1/P   

P%=[m/(n+1)] x 100   

n = V_v/V_t

n = V_v + V_s

n = S_y + S_r

θ_v = V_w/V_t

θ_v = V_w/V_t

K =  V L_  

    A t h           

γ = ρ g

P = ρ g h_P = γ h_P

 = (K/n_e)(dh/dl)

h = z + h_p

Q = (mKH)/n (or Q = m K dh) 

q’ = Kph/f (same eq. as above with different letter designations)

q’ = Kb (dh/dl)

tan θ₁ = K₁

tan θ₂ K₂

q’ = ½ K ((h₁² – h₂²)/L)

σ_T = σ_e + P

…to calculate σ_T on top of aquifer…

σ_T =(γ_{dry mat *} mat. thickness)+

     n * mat. thickness _* γ_wtr)

dσ_e = -ρ g dh_p = - γ dh_p

db = -α b dσ_e = α b γ dh_{p     ,}Note: may assume dh=dh_p

Ss = ρg (α + n β)= γ(α + n β)

S = Ss b = b γ(α + n β)

T = K b

S = V_W / A / dh

V_w = S A dh

h_o - h =   Q    W(u), u =  r² S

         4 π T            4 T t

Constants

g = 9.81 m/s²

ρ_wtr = 1000 kg/m³

γ_wtr = 62.4 lb/ft³ = 9810 N/m³

β_wtr = 4.4 x 10^-10 m²/N

ß_wtr = 2.1x10^-8 ft²/lb

mll, rev. fall 2002