Salt Creek WQ Studies
2-Hour vs. 4-Hour Total Ammonia Sampling
Conclusion:  4-Hour Sampling will Suffice for All in situ Work (See Graph)
			2-Hr		4-Hour
Sitecode	Date	Time	Labno	NH3	NH3	labno
Theresa Samples
'IS2_01'	09/17/99	10:00	990917001	15.98
'IS2_02'	09/17/99	12:00	990917002	15.44	15.48	990917013
'IS2_03'	09/17/99	14:00	990917003	17.10
'IS2_04'	09/17/99	16:00	990917004	21.20	20.88	990917014
'IS2_05'	09/17/99	18:00	990917005	24.25
'IS2_06'	09/17/99	20:00	990917006	25.80	25.94	990917015
'IS2_07'	09/17/99	22:00	990917007	25.98
'IS2_08'	09/18/99	00:00	990917008	25.65	25.59	990917016
'IS2_09'	09/18/99	02:00	990917009	24.82
'IS2_10'	09/18/99	04:00	990917010	23.99	24.06	990917017
'IS2_11'	09/18/99	06:00	990917011	23.38
'IS2_12'	09/18/99	08:00	990917012	22.33	22.25	990917018
NETP Samples
'IS8_01'	09/17/99	10:00	990917019	12.53
'IS8_02'	09/17/99	12:00	990917020	11.27	11.25	990917031
'IS8_03'	09/17/99	14:00	990917021	11.54
'IS8_04'	09/17/99	16:00	990917022	15.22	15.09	990917032
'IS8_05'	09/17/99	18:00	990917023	17.94
'IS8_06'	09/17/99	20:00	990917024	17.27	17.30	990917033
'IS8_07'	09/17/99	22:00	990917025	16.34
'IS8_08'	09/18/99	00:00	990917026	15.61	15.66	990917034
'IS8_09'	09/18/99	02:00	990917027	15.24
'IS8_10'	09/18/99	04:00	990917028	14.44	14.61	990917035
'IS8_11'	09/18/99	06:00	990917029	13.79
'IS8_12'	09/18/99	08:00	990917030	13.23	13.29	990917036