Table 3.3
Value standards (concentrations in
μg/l unless noted) [8]
Parameter
a
Table value standards
b, c
Ammonia
d
Cold water
acute
¼
0:275
1þ10
7:204ÀpH
þ
39:0
1þ10
pHÀ7:204
chronic
¼
0:0577
1þ10
7:688ÀpH
þ
2:487
1þ10
pHÀ7:688
à MIN 2:85, 1:45
à 10
0:028 25ÀT
ð
Þ
À
Á
Warm water
acute
¼
0:411
1þ10
7:204ÀpH
þ
58:4
1þ10
pHÀ7:204
chronic Apr1
À Aug31
ð
Þ ¼
0:0577
1þ10
7:688ÀpH
þ
2:487
1þ10
pHÀ7:688
à MIN 2:85, 1:45
à 10
0:028 25ÀT
ð
Þ
À
Á
chronic Sep1
À Mar31
ð
Þ ¼
0:0577
1þ10
7:688ÀpH
þ
2:487
1þ10
pHÀ7:688
à 1:45
à 10
0:028Ã 25ÀMAX T,7
ð Þ
ð
Þ
NH3
¼ old TVS
Cold water acute
¼ 0.43/FT/FPH/2
e
in mg/l (N)
Warm water acute
¼ 0.62/FT/FPH/2
e
in mg/(N)
Cadmium
Acute
¼ (1.136672–[ln(hardness)
 (0.041838)])
 e
0.9151[ln(hardness)]–3.1485
Acute(trout)
¼ (1.136672–[ln(hardness)
 (0.041838)])
 e
0.9151[ln(hardness)]–3.6236
Chronic
¼ (1.101672–[ln(hardness)
 (0.041838)]
 e
0.7998[ln(hardness)]–4.4451
Chromium III
f
Acute
¼ e
(0.819[ln(hardness)] + 2.5736)
Chronic
¼ e
(0.819[ln(hardness)] + 0.5340)
Chromium VI
f
Acute
¼ 16
Chronic
¼ 11
Copper
Acute
¼ e
(0.9422[ln(hardness)]–1.7408)
Chronic
¼ e
(0.8545[ln(hardness)]–1.7428)
Lead
Acute
¼ (1.46203-[ln(hardness)*(0.145712)]) * e
(1.273[ln(hardness)]–1.46)
Chronic
¼ (1.46203-[ln(hardness)*(0.145712)]) * e
(1.273[ln(hardness)]–4.705)
Manganese
Acute
¼ e
(0.3331[ln(hardness)] + 6.4676)
Chronic
¼ e
(0.3331 [ln(hardness)] + 5.8743)
Nickel
Acute
¼ e
(0.846[ln(hardness)] + 2.253)
Chronic
¼ e
(0.846[ln(hardness)] + 0.0554)
(continued)
3 Surface Water Quality and Analysis
69