HomeMy WebLinkAbout2003 Ordinance No. 055.,
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ORDINANCE NO . 'i2::'
SERIES OF 2003
BY ,,:_ I HORlTY
CONTRACT NO. ~ 3 -~oa3 IO b v
COUNCIL BILL NO . 56
INTRODUCED BY COUNC IL
MEMBER GARRETT
AN ORDINANCE APPROVING AN I 1TERGOVERNMENTAL AGREEMENT WITH
COLORADO STATE UNIVERSITY (C SU) FOR THE COOPERATIVE RESEARCH
PR OJECT ON LAND APP LI CATION OF ~EWAGE BIOSOLIDS ON DR YLAND
WHEAT .
WHEREAS, SINCE 1982, THE LITTl l rON/ENGLEWOOD WA 5TEWA TER
TREATMENT PLANT (UE WWTP ) in co :~eration with Colorado Slate University
(CSU) Department of Soil and Crop Seier.c c, has successfully conducted a continuous
research program to observe the lon g-tenn effec ts of the application ofbio solids fo r
dryland wheat farming; and
WHEREAS, the research has provided long-term research data and a sound ba,is of
knowledge of the biosolids produced by the LIE WWTP and the environmental impacts of
the product; and
WHEREAS. the UE WWTPICSU re search project has been instrumental in establishing
the basis for biosolids beneficial use for !he growth of dryland wheat crops in the arid
western states and in Australia ; and
WHEREAS , the long-term re search demonstrate s that the beneficial use of wastewater
biosolids is an environmentally safe , economically beneficial and agriculturally so und
practice for recycling and conservi ng a valuable resource; and
WHEREAS , the research ha s benefited not only fanning communities of wes tern states
fanning communities, but also biosolids researchers . regulators , generators , appliers and
other environmental professionals; and
WHEREAS. in 1999 the UE WWTP and CSU received the U.S. EPA Outstanding
Re search Contributing to Beneficial Use of Wastewater Solids -First Place National; an d
WHEREAS, CSU has submitted their proposal for the coo perati ve re search project on
land application of se wage biosolids on dry land wheat; and
WHEREAS. the 2004 study include s stud y sit es at the Bennett si te, the Kiowa site and
the Bye rs si te ;
NOW , THEREFORE. BE IT ORDAINED BY THE CITY COUNC IL OF THE CITY OF
ENGLEWOOD , CO LORA DO , AS FOLLOWS :
Section . The Colorado State University Biosolids Research Proposal between the
Colorado State University and the Li tt leton/E11glewood Wastewater Treatment Plant is
hereby accepted and app ro ved by tho City Council of the City of Englewood .
Section 2. The Director of the Litt leton/Englewood Wastewater Treatm,:nt Plant is
authorized to execute the Colorado State University Biosolids Research Proposal for and on
behalf of the Littleton/Englewood Wastewater Treatment Plant.
Section 3. The Director of tho Litt leton/Englewood Wastewater Treatment Plant shall
be authorized to further extend the Intergovernmental Co lorado State University lliosolids
Research Propo sal for tho cooperative research project on land application of sewage
bioso li ds on dryland wheat, between the Littleton/Englewood Wastewater Treatment Plant
and Co lorado Stale University , for five additional one (I) year periods .
Introduced, read in full , and passed on first reading on the 4th day of August , 2003 .
Published as a Bill for an Ordinance on the s• day of August, 2003 .
Read by title and passed on final reading on the 1@• day of August, 2003 .
Pubished by title as Ordinance No. $" , Series of 2003, on th e 22"' day of August,
2003.
I, Loucri shi a A. Ellis , City Clerk of the City of Englew ood, Colorad o, hereby cer.ify
that the above and foregoing is a true~ of the Ordinance sed on fin al reading and
published by title as Ordinance No. Series of 2003.
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LAND APPLICATION OF
SEWAGE BIOSOLIDS
PROPOSAL FOR COOPERATIVE
RESEARCH PROJECT BETWEEN
COLORADO STATE UNIVERSITY
AND
LITTLETON/ENGLEWOOD JOINT
COUNCIL
2004
I. Land Application of Sewage Biosolids
II. Personnel
Project Leaders:
III. Introduction
K .A. Barbarick , Pre fessor
G.A. Peterson, Profe sso r
J.A. Ippolito, Special Assis tant Professor
We have studied the beneficial use of Little1on/Englewood (LIE) biosolids since 1982 at
West Bennett , since I 988 at Kiowa , since 1993 at Nonh Bennett, and since I 999 at Byers. We
Josi one of the We st Bennett sites to development and re search at the Kiowa localion is le ss
critical no w that the joint city councils have purchased lhe Byers propen y. We will present the
propo sed research and associated bud ge t se paratel y for all four locations and 1hen presen t !he
Iota! budge! for our proposed research .
IV. Bennett Study Sites
A. West Bennett
We established siles A and Bat West Bennett in 1982 and in 1983, re spectively . Our
cooperating farmer, Jim Hazlett ~as sold site B for homesite development. We will continue
using West A since it represents the last of our original, long-term sites. Since we follow a
fallow system for our dryland wheat study , we would use this site every other year. We will
harve st wheat in summer 20 03 al this site. We will establish this sile again in summer of2004
and will harvesl the wheat in summer 2005. This site will remain in fallow from July 2003 until
late July or early August 2004 when we will again apply LIE biosolids .
B. North Bennett
We initiated the Nonh Bennett experimental location to replace the East Bennett plots
that we lost in 1993. Our former cooperating farmer at East Bennett, Kevin Helzer decided to
grow irrigated crops on our study sites in 1993. We also changed the experimental approach at
Nonh Bennett 10 focus on determining the N equivalency of LIE biosolids associated with
repeated applications in a dryland wheat summer-fallow agroecosystem. We will complete
harvest soil , grain, and straw sampling and analyses as we have in the past.
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C. Objectives for the Bennett study sites (Wes t and North Bennett)
The obj~ctives of the Bennett stud y are:
I . To determine the continuing effects, at West Bennett site A, of various
sewage-biosolids rates on dryland wheat including grain yield, protein
content, potential income and the N, P, K concentrations after one
application of liquid biosolids ( 1982) plus ten additions of dried biosolids
(1984, 1986, 1988 , 1990, 1992, 1994, : 996, 1998, 2000 , 2002). The next
scheduled biosolids application is in 20 .
2. To quantify the N equivalency of repeated biosolids application under
field conditions compared with commercial N fertilizer at our North
Bennett plots .
3. To study the long-term effects oflJE biosolids on soil accumulation and
wheat uptake of Cd , Cr, Cu, Ni, Pb , Mo , and Zn .
4. To study the long-term effects of lJE biosolids on As, Hg , and Se levels in
soil and grain in the 0, 2, and 5 dry ton s/acre plots for the North Bennett
site and on the 0, 3, and 6 dry tons/acre plots for West Bennett site A .
Samples will consist of a composite of all replications for each rate for
grain analyses . This gives three grain sam pl es each for both North and
West Bennett . We also will composite separately the 0-20 and 20-60-cm
soil samples from the same plots as the grain samp le s. This will provide
us a total of six soil samples to analyze for each site.
5. To determine the accumulated NO3-N levels to a depth of 180 cm (6 feet)
associated with repeated application of • arious N fertilizer or sewage
biosolids at our West Bennett site A and North Benn~tt plots .
Bennett study si tes budget (See Table 1 on the next page).
Table I . Proposed bud get s for the West and No nh Bennett sewage bioso lid s studi es.
Budget item 200 3
( current budget )
Soil and Grain Analyses 864
for As. Hg , and Se
Travel 191 1
Special Assistdllt Profe sso r: 16440
Overhead1 6202
Propo sed
2004
432
1508
16440
5755
Pro posed
2005
864
1911
17426
6528
We will shift some hourly -labor costs to other projects to help accommodate the
increases in overhead. Assumes 50 % of the stude nt hourly 's effon on the Bennett and
50% effon on the Byers site.
Assumes 5.5 month s on the Bennett study , 0.5 months on the Kiowa study , and 6 months
on the Byers stud y. We also assumed a 0% sa lary increase for 2004 and a 6% increase for
2005. We assumed that all other costs for 2004 and 2005 will remain th e same as ei ther
2002 or 2003 (because of fallow condition s. we would harvest the West Bennett site in
2004 and no t in 2003 ).
Fringe be nefit rate s for th e Special Ass istant Professor were 19.2% for 2003 and
es timated to be 20 .0% for 2004 and 20 .1 % for 2005 .
The current off-campus overhead charge is 24.5 %.
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\'. h:io" :1 S lllll y Sill'
A. lntrmluclion
\\·l, "1 11 l.'tJ11 t1m11: It) t,1hl· \\:ll l..'r ,.tmp k ~ from thl.' (,nir ,, .... 11, ,\n .t qua rti..:rl~ nr .umual
basis . t)u:trt l..'rl~ -.,11111'11.·, \\lHlld 1m:lmh: .mal~ ,1...., 1~,r tnt.11 "· '.'\() -\;_\:II :·,. P. K .. \g .. \\. \:-,.
Cd. u. Fl..'. Ph. I lg.. '.\I n. \i . S1.:. :mJ /n . \\·,._. a b1.l "tll .mal~ 11.; tllL' J nnu al -;am p ks for 1.'n<lnn.
lindan e. nh:thnx~chk•r. tn,.1phl.'111:. ~-➔-D .. mJ 2 .➔.5-1 . !"he.: uhJl.'L'tl\1.' ofth1..; stud ~ 1s 1..'0lllll\Ul..'d
muni 1orin g \)t' grnund,,,111.:r 111 four ,,l..'11-. for total'.'\. \01-\. \11 1·'-. P. 1'. -\g. :\I. r\:-i. CJ. Cu.
Cr. Fe . Ph. I lg. '.\t ,,. \1. "1.·. l.n .1.:11dnn. linda nc.:. ml.'.lh ox~...:hlor. tn:-.dp hcnl..'. 2 .➔-D. and 2.➔.5 -r
lol hl\\in g thl..' Ji:,l.'.llllt1nu.1t1 1H1 ,,t'hio~1.1 l1 1.b .1ppli1.:atin11 (last applk :.ittn n \\,ls 111 .-\ugus t J1)i..l8).
B.
Table~-
h'..iowa s 1udy s itl' hud:,.:c1 s (Sl'c Table 2 helow)
Propos l.'d budgl.'t s fu r thl.' 1\..10 \,a sc ,\agc b10s0 \id s stuJ~.
l3udgt.:t ltt.:m 20 03 Propos ed
lcurrl.'nl 2004
bu<lgct)
.l'f'ater Analyses ;1 2755 2755
Spl!cia l Ass istant Pro li:ssur 14 95 149 5
"Fringe Benefits for Special Ass istan t
·Professo,i
287 299
T,,_-el 401) 400
:~erh~d1 1210 1213
Total 5614 7 S6162
Prupose<l
20""
2755
1585
319
400
1239
S62QS
H O1:·:-ha lf month llf ~abr~ co \·t.:rl.'J in 2003. 20 0-l. and ~005. \\ l.' also a~sum l.'d a 0° o
salar~ im.:rt.:asl.' for 200-l .md a 6°11 im:rt.:asc fo r ~005 \\'l.' .tss um cd that all 01ha costs fo r
:!004 and 2005 "ill ri:main thl.' samt.· as 200.1 .
Frin gl.' ht.:ni:li1 r::i tt.:s fo r th t.: Spl.'ciJI .-\ssl!'l tant Prnl~ssnr \\l.'n: \{) 2°0 for 2003 .m d
l.'Slimatl.'d hi hl.' :n .0° f) for :nc-l :mJ 20 ! 0 0 ru r :005
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VI. Byer! Study Site
A. Introduction
With the development of the UE Byers biosolids-application site , we are developing
some practical , never-done-before research. No-till and minimum tillage management is
increasing in popularity in eastern Colorado because it improves water conservation and allows
more intensive cropping. Biosolids application could enhance the benefits of no-till or minimum
tillage by improving soil cover and soil physical characteristics when surface applied . Biosolids
could work in concert with crop residues to allow farmers to meet the Natural Resource
Conservation Service 30% soil coverage required to comply with conservation program~.
Biosolids application could initially supply soil co ver until adequate crop residue can
accumulate. Continued additions may even provide production and economic advantages.
Farmers may eventually use biosolids as an integral part of a conservation program. To date, we
have applied biosolids for the fourth-year rotation to plots growing wheat , com, and sunflowers .
B. Objectives
Our objectives at the Byers site are :
I. To determine if increasing biosolids application from once every two
years to two out of three years or four out of five years is a feasible
mru ,agement altemative.
2. To determine ifbiosolids behave like crop residues in terms of moisture
storage and crop production. Available-water storage and crop yields are
the properties of greatest interest.
3. To determine the effects ofbiosolids application at the agronomic rate
compared with commercial N fertilizer in three cropping systems on soi l
and grain accumulation of plant nutrients and trace elements limited by the
Colorado Department of Public Health and Environment biosolids-
applic ajon regulations .
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C. Procedures
Treatments :
I . Three crop rotations:
a. Wheat-fallow (typical rotation)
b. Wheat-com-fallow
c. Wheat-wheat-com-sunflowers-fallow (based on managing
Farmer 's interest)
2. Biosolid s/fertilizer treatments :
a. Biosolids application to supply N recommended for the
measured soil NO3-N (e.g ., the agronomic rate).
b. Commerci al N fertilizer at the agronomic rate .
D. Experimental de3ign
We will use two blo cks (replications) of each treatment arranged in a split-plot design .
The main plots will consist of the cropping rotations . Each main plot will be split to
accommodate biosolids application on half the plot and commercial fertilizer addition on the
other half.
All phases of each rotation will be present each year to allow assessment of all soil and
crop responses each year . This require s a total of 20 main plots and 40 split plots (2 replications ,
10 cropping rotations , biosolid s/fertilizer treatment splits).
Each main plot will be 0.8 km (0 .5 mil es) long by 30 m (100 feet) wide. Each
biosolid s/fe rt ilizer split would , therefore , be 15 m (50 feet) wide .
E. Measurements
We will complete the following measurements or analyses.
I . Annual grain and biomass yields .
2. Compl ete records on farmer inputs .
3. Plant-ava ilable concentrations ofNO3-N, P, K, Fe, Mn , Cu , Zn ,
Na . Cd , Cr , Pb, Mo , and Ni in soil before each crop planting
(determined in 0-5 , 5-10 , 10-20, and 20-30 cm samples from each
replicated plot) .
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4. We will composite 0-5--cm soil samples for As , Hg , and Se
anal yses for each replication before each crop planting . This will
give us 14 soil samples to analyze for As, Hg , and Se each year.
5. Deep soil sampling before each crop planting by hydraulic probe
for N03-N (detennined 0-30, 30-60, 60-90, 90-120, 120-150, 150-
180 cm samples, if possible, from each replicated plot).
6. Concentrations of P, K, Fe, Mn, Cu, Zn, Na, Cd, Cr, Pb, Mo, and
Ni in grain sampled from each replicated plot.
7. For annual As , Hg, and Se grain analyses, we will compo site grain
samples for each biosolids or N fertilizer replication for each type
of crop. This scheme will provide us with eight wheat, four com,
and two sunflower samples for As, Hg, and Se analyses each year.
F. Byers study site budgets (See Table 3 on the next page.)
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Table 3. Propo sed budgets for the Byers sewage biosolids study.
Budget Item 2003 (current)
Hourly Labor 1 600
Proposed
2004
600
Proposed
2005
600
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Fringe Benefits for Special Assistant
Profe sso r,
3443 3587 3821
We will shift some hourly-labor costs to other projects to help accommodate the
increases in overhead . Assumes 50% of effort on the Bennett and 50% effort on the
Byers site .
Six months of salary covered in 2003 , 2004 , and 2005 . We also assumed a 0% salary
increase for 2004 and a 6% increase for 2005. We ass umed that all other costs for 2004
and 2005 will remain the same as 2003.
Fringe benefit rate s for the Special Ass istant Profe ssor were 19 .2% for 2003 and
estimated to be 20 .0% for 2004 and 20.1 % fo r 2005 .
The current off-campus overhead charge is 24.5% .
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VII. Total Budgets
\Ve have tabulated the tota l budgets by location (Tab le 4) and by bud ge t category (Table
5) fo r 2002 through 200 4.
Table 4.
Table 5.
Item
Total bud get s by loc ation for 2003-2005 .
Loc ation
Kiowa
Total $75 357 $73155
Total budgets by budget categories for 2003-2005 .
2003
(c urrent)
Perso Mel
Total
Special Ass istant Professor
Fringe benefits
Hourl y st udent
H The curren t off-campus ove rhead charge is 24 .5°~.
35869
6886
1200
575 357
Proposed 2005
$78977
Proposed
2004
35869
7 174
1200
$73 155
Prop osed
2005
3802 1
7643
1200
$78977
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COUNCIL COMMUNICATION
Date
Aug ust 4, 20 03
Agenda Item
10 a iii
Subject
Col orado State Uni versity Biosolids
Res ea rch Agreeme nt
INITIATED BY STAFF SOURCE
Littleton/Engl ewood wwrP Supervisory
Committee
COUNCIL GOAL AND PREVIOUS COUNCIL ACTION
Mark Van Nostrand, Seni or Proj ect Engineer
Cou ncil has approved this research project annually fo r seve ral years.
RECOMMENDED ACTION
We re co mmend Council approve by Ordinance an Int ergove rnmental Agreement with Colorado State
Univ ersity for th e cooperative research projects on lam. applica tion of sewage biosolids on dryland wheat
in the amount of $78,97 7.
BACKGROUND, ANALYSIS, ANO ALTERNATIVES IDENTIFIED
Since 1982, the Littlet on/E nglew ood Wastewater Treatment Plant (L /E WWfP), in cooperation with
Colorado State University (CSU) Dep artm ent of Soil and Crop Sciences, has successfully con ducted a
continuous research program to observe the long-term effects of the a pplication of biosolids for dryland
wh eat farm ing . Th e researc h has provided long-term resea rch data an d a soun d basis of knowle dge of the
olids produced by th e L/E wwrp and the environmental impacts of the product. TI1e information has
been used ex tensi ve ly as a public relati ons tool, as well.
Add it ionally, the L/E WW, P /CSU research proje ct has been instrumental in establishing the basis for
biosolids beneficial use for the growth of dryland whea t crops in th e arid wes tern states and in Australia .
Th e long-term research demonstrates th at the beneficia l use of wastewa ter biosolids is an environmentally
safe, eco n Jmically benefi cial , and agri culturall y sound practice for recycling and conservi ng a valuable
resource. Th e resea rch has res ulted in thirt een reference jo urn al articles and book chapte rs, twenty-three
tec hni ca l papers, num ero us bu ll eti ns and reports, one doc tora l the si s (another in progress) and two
masters ' th es is . The res ea rch has benefit ed not only wes tern states farm ing comm uniti es, but also biosolids
researchers , reg ul ators , ge nerat ors, appli ers and othe r environmental professio nals in the following ways:
L/E wwrP staff was recently notifi ed that th e biosolids pr og ram will receive th e 2003 Rocky Mountain
Wat e r Environment Associa ti on Biosolids Manage men t Merit Award . In 1999 th e L/E WWf P and CSU
receiv ed th e U.S. EPA Out stand in g Resear ch Co ntributin g to Benefi cial Use of Wast ewater Solids -Firs t
Place National ( 1999).
Colorado Sta te University has submitt ed th eir proposa l fo r th e cooperative rese arch project on land
app li cation of sewage bi oso lids on dryland wheat. Th e 2004 stud ies in cl ud e study sit es at the Benn ett site,
th e Kiowa site , and the Bye rs sit e, whi ch is on th e new farm. The cos t for each st udy site is as follows:
Benneu
Ki owa
By ers
TOTAL
FINANCIAL IMPACT
$33,1 74
$ 6,298
lli.lli
$78,977
The cos t of th e project is spli t 50/50 wi th the City of Littleton as a capi tal expense.
LIST OF ATTACHMENTS
CSU Bios oli ds Research Project Proposal
Proposed Bill for an Ordinan ce
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