Revision History File

Publication Series and Series Number:  Scientific Investigations Report 2004-5235

Publication Title: Phosphorus and suspended sediment load estimates for the Lower Boise River, Idaho, 1994-2002

Publication Authorship:  Mary M. Donato and Dorene E. MacCoy

First Version and Date of First Release:  1.00  February 23, 2005

Current Version and Date of Current Release:  2.00   December 12, 2005 

Summary of Product Components

Component	Description	Last Revised in Pub Version	Date of Last Revision
Book	Phosphorus and suspended sediment load estimates for the Lower Boise River, Idaho, 1994-2002	2.00	December 12, 2005

Historical List of Revisions (latest revision first)

Version 2.00¾December 12, 2005

Book—

Page 1:  The first and second sentences in paragraph 6: “Estimated monthly average SS loads were highest at Diversion, about 400 tons per day (ton/d). Average annual loads from 1994 through 2002 were 144,000 tons at Diversion, 33,000 tons at Glenwood, and 88,000 tons at Parma.” were replaced with:

“Estimated monthly average SS loads were highest at Parma, about 250 tons per day (ton/d). Average annual loads from 1994 through 2002 were 13,000 tons at Diversion, 33,000 tons at Glenwood, and 88,000 tons at Parma.”

Page 5: The following paragraph was added after paragraph 1 on page 5 in the Input Data, Calibration Files section: “After this report was completed, the SS data in the USGS database were updated to include new analyses of samples, which had been collected between 1994 and 2003, but which were not entered in the database until mid-2005. Although the new data were not used in our load estimates, new LOADEST SS load estimates based on the complete data were not significantly different from our results (Greg Clark, U.S. Geological Survey, oral commun., 2005).”  

Page 6: Figure 2, the graph for the Diversion site was revised.

Page 9: The first sentence in paragraph 5, “Monthly average load estimates for SS generally were the least precise; the average width of the 95-percent CI, as a percentage of the mean estimated load of SS, ranged from 88 percent at Parma to 111 percent at Diversion”, was replaced with:

“Monthly average load estimates for SS generally were the least precise; the average width of the 95-percent CI, as a percentage of the mean estimated load of SS, ranged from 88 percent at Parma to 129 percent at Diversion.” 

Page 9: Table 2, the Suspended Sediment values for the Diversion site were revised.

Page 12: Figure 6, the graph for the Diversion site was revised.

Page 14: Table 3, the Suspended Sediment values for the Diversion site were revised.

Page 16: Figure 10, the graph for Suspended Sediment was revised.

Page 16: The third sentence in the paragraph 2, “Annual loads at Diversion ranged between 15 and 30 tons.” was replaced with:

“Annual loads at Diversion ranged between 6 and 51 tons.”

Page 18: The last sentence in the paragraph 1, “The estimated values for Diversion were notably lower during winter and spring, when less than one-half the TP was in the OP:TP ratio.” was replaced with:

“The estimated values for Diversion were notably lower during winter and spring, when less than one-half the TP was in the dissolved state.”

Page 19: The first paragraph, “Overall, estimated SS loads were largest at Diversion (fig. 14), where the average load for the estimation period was about 400 ton/d. The maximum loads at Diversion occurred in April 1997, when daily loads exceeded 3,500 ton/d for 19 consecutive days. In contrast, average loads at Glenwood were about 90 ton/d; the maximum daily load at Glenwood, about 875 ton/d, occurred in February 1997. At Parma, the average load for the estimation period was 250 ton/d. The monthly average loads peaked during May and June from 1995 through 1998 and ranged from about 970 to 1,200 ton/d (fig. 14).” was replaced with:

“Overall, estimated SS loads were largest at Parma (fig. 14), where the average daily load for the estimation period was about 260 ton/d. The maximum monthly loads at Parma occurred in May 1995, 1996, and 1997, when peak monthly loads ranged from 1,120 to 1,220 ton/d. In contrast, the smallest average daily SS loads, about 37 ton/d, were estimated at Diversion. Maximum monthly loads at Diversion occurred in March 1996 (about 220 ton/d) and in February 1997 (about 260 ton/d) (fig. 14).”

Page 19: The second sentence in paragraph 2, “The relative range in SS loads was greatest at Diversion, where maximum loads exceeded minimum loads by a factor of 38.” was replaced with:

“The relative range in SS loads was greatest at Glenwood, where maximum loads exceeded minimum loads by a factor of about 30.”

Page 19: The first sentence in paragraph 3, “Total loads of suspended sediment from 1994 through 2002 at Parma ranged from 17,600 tons in 2001 to 167,000 tons in 1997, whereas annual loads at Diversion ranged from 10,100 to more than 470,000 tons (table 3).” was replaced with:

“Total loads of suspended sediment from 1994 through 2002 at Parma ranged from 17,600 tons in 2001 to 167,000 tons in 1997, whereas annual loads at Diversion ranged from 3,400 to 34,100 tons for the same years (table 3).”

Page 19: The last sentence in paragraph 3, “Average annual loads for the estimation period were 144,000 tons at Diversion, 33,000 tons at Glenwood, and 88,000 tons at Parma.” was replaced with:

“Average annual loads for the estimation period were 13,000 tons at Diversion, 33,000 tons at Glenwood, and 88,000 tons at Parma.”

Page 19: Figure 14 was revised.

Page 20: The first sentence in the paragraph 1, “Monthly average increases and decreases of the constituent loads in the three reaches between the four modeled sites were calculated by subtracting the monthly average increase at the upstream site from the monthly average increase at the downstream site.” was replaced with:

“Monthly average increases and decreases of the constituent loads in the three reaches between the four modeled sites were calculated by subtracting the monthly average load at the upstream site from the monthly average load at the downstream site.”

Page 20:  In the “Diversion to Glenwood” section, paragraph 2 was replaced with: “Annual increases in SS from Diversion to Glenwood were predominant from 1994 to 2002. Increases ranged from 327 tons in 1995 to 2,500 tons in 1997, the highest-flow year in the estimation interval. Small annual decreases ranging from 40 to 83 tons were estimated for 1994, 2001, and 2002.”

Page 20: In the “Middleton to Parma” section, the last sentence in paragraph 1, “Large increases occurred during high-flow conditions, indicated active erosion or influx of sediment from tributaries in this reach during high flows and slight erosion or influx of sediment during medium- to low-flow conditions.” was replaced with:

“Large increases occurred during high-flow conditions, indicating active erosion or influx of sediment from tributaries.”

Page 21: Figure 15, the graph for Diversion Dam to Glenwood was revised.

Page 22: Table 4, the Suspended Sediment p-value for the Diversion site was revised.

Page 24: Table 6, the Suspended Sediment values for the Diversion site were revised.

Page 28: The last paragraph, starting with the second sentence, “Estimated monthly average SS loads were largest at Diversion, about 400 tons per day (ton/d). In contrast, the monthly average load at Glenwood was about 90 ton/d. At Parma, the peak monthly average loads were between about 970 and 1,200 ton/d in May and June from 1995 through 1998. Average annual loads from 1994 through 2002 were 144,000 tons at Diversion, 33,000 tons at Glenwood, and 88,000 tons at Parma.” was replaced with:

“Estimated average monthly SS loads were largest at Parma, about 250 tons per day (ton/d). In contrast, the monthly average load at Diversion was about 37 ton/d. At Parma, the peak monthly average loads occurred in May and June from 1995 through 1998, and averaged about 970 to 1,200 ton/d. Average annual loads from 1994 through 2002 were 88,400 tons at Parma, 33,000 tons at Glenwood, and 13,000 tons at Diversion.”