exv10w21



 





Exhibit
10.21






			
	
	 	U.S. Water
Services/Utility Chemicals

330 South Cleveland St.

Cambridge, MN 55008 

Tel: (763) 689-3636
	 
	 	 Fax: (763)
689-3660





Date: 9/15/06



SERVICES AND EQUIPMENT QUOTED TO:



          Siouxland Ethanol



          Attn: Tim Smith



          P.O. Box 411



          Jackson                     NE                     68743




U.S. Water Services Equipment and Services Agreement



The undersigned Purchaser hereby instructs U.S. Water Services to proceed with the equipment
order described with the understanding that the Terms and Conditions shown on Pages 2 and 3, and
are hereby incorporated as part of this Equipment Agreement. The Purchaser further understands that
all quotes or estimates, if any, are based on the best information available prior to beginning
work. As the scope of work, conditions, or estimated quantities change revised quotations or
estimates will not be issued unless requested. All prices are subject to Federal, State and Local
Sales and Use Taxes.




     Work Location:            Siouxland Ethanol — Jackson, NE           



     Work Order #:                                                             



	 	 	 	 	 	 	 	 	 	 	 
	QNTY.	 	DESCRIPTION	 	ARO	 	COST
	1

	 	USWaterWorks Communication Package
	 	8 weeks
	 	$	13,265.00	 
	1

	 	BlueFalcon Automation
	 	8 weeks
	 	$	4,500.00	 
	7

	 	Stainless Steel Tanks With Sight Glass, Venting Kit, Fill Line
	 	8 weeks
	 	$	22,400.00	 
	1

	 	110 Gal. PE Tank for Non-Oxidizing Biocide
	 	8 weeks
	 	$	750.00	 
	2

	 	1,000 Gal. Tank for Chlorine
	 	8 weeks
	 	$	7,800.00	 
	1

	 	Low-Voltage &
Communication Wiring Termination/ Supervision
	 	4 weeks
	 	$	2,000.00	 
	2

	 	Microfiltration Units
	 	16 weeks
	 	$	1,040,000.00	 
	1

	 	USW-300 Reverse Osmosis, With CIP Tank and Pump
	 	16 weeks
	 	$	255,900.00	 
	1

	 	USW-300 Reverse Osmosis, With CIP Tank and Pump
	 	16 weeks
	 	$	255,900.00	 
	1

	 	USW-450 Triplex: Triplex Progressive Flow Water Softener
	 	14 weeks
	 	$	47,083.00	 
	1

	 	PK-12941: Pretreatment Chemical Feed System
	 	6 weeks
	 	$	1,436.00	 
	1

	 	PK-12921: Reverse Osmosis Polymer, Bisulfite, Acid Feed
	 	10 weeks
	 	$	34,168.23	 
	1

	 	Initial Chemical Fill Precleaning Chemicals Testing Equipment RO

Prefilters RO CIP Chemical Transfer Pumps
	 	8 weeks
	 	$	63,154.14	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	SUB TOTAL
	 	 	 	 	 	$	1,748,356.37	 
	 

	 	CAPITAL EQUIPMENT DISCOUNT
	 	 	5	%	 	$	84,160.11	 
	 

	 	TOTAL
	 	 	 	 	 	$	1,664,196.26	 
	 

	 	Does the customer agree to allow USWS to purchase and charge up to
$5000.00 worth of miscellaneous construction expenses? All expenses will
be reconciled at the close of construction.
	 	Yes  
6
	 	$	5,000.00	 





NOTE: All equipment or engineering has been completed by the engineering design firm.
Further, NPDES restriction will not be known until some future date and could impact additional
equipment and costs. Not all parts of the water systems are included in this proposal and there are
sure to be miscellaneous parts and pieces as the project continues through the design and
construction phase. It is recommended that the customer budget at least $20,000 for miscellaneous
parts and pieces.




     Assumes 3-Year Service Agreement.



CONFIDENTIAL





 









 








			
	
	 	U.S. Water Services/Utility
Chemicals 

330 South Cleveland St.

Cambridge, MN 55008 
	 
	 	Tel: (763) 689-3636 

Fax: (763) 689-3660






Terms & Conditions



The undersigned Purchaser hereby instructs U.S. Water Services to proceed with the equipment
order described with the understanding that the Terms and Conditions shown on Pages 2 and 3, and
are hereby incorporated as part of this Equipment Agreement. The Purchaser further understands that
all quotes or estimates, if any, are based on the best information available prior to beginning
work. As the scope of work, conditions, or estimated quantities change revised quotations or
estimates will not be issued unless requested. All prices are subject to Federal, State and Local
Sales and Use Taxes.





	 	•	 	The equipment and chemicals were based upon a water quality from samples obtained by the
customer and tested by U.S. Water Services. The
water results are dependant upon obtaining a representative water sample and that water sample
being a stable water quality. Well water quality
may change dramatically from test wells. The wells may produce sand or other contaminants not
known during initial well testing or the well
may be impacted by surface water conditions or the geology in the area over time. These water
changes may increase operating costs for
chemicals and may require additional capital to provide the necessary water quality to the
ethanol plant. Necessary water quality is defined as a
“Silt Density Index” of less than 5.0 for the water process equipment, such as the Reverse
Osmosis, and of potable water quality for the ethanol
process. Additional costs due to these unknown well or makeup water changes shall be the
responsibility of the customer.
	 
	 	•	 	Changing water sources could and probably will create the need to add additional capital
water treatment equipment and could increase chemical
and operating costs.
	 
	 	•	 	Discharge restrictions are usually not known in advance and the NPDES permit is not usually
issued prior to the water system engineering
process. Many times there are limits or restrictions that may create the need to add additional
water treatment equipment or change the operating
assumptions on which the chemical and service agreement was based. The chemical and services
were selected based on those conditions
outlined in Appendix A. U.S. Water Services has no way of knowing in advance of these types of
specific restrictions that may be imposed by
regulatory agencies. U.S. Water Services has no ability to alter or impact NPDES
restrictions. Additional costs due to these unknown
restrictions or limitations shall be the responsibility of the customer.
	 
	 	•	 	The ethanol design firm has overall authority in the system and process design. This
equipment and chemical agreement is based upon the initial
design specifications, which are based on the current design and construction standards from
the engineering design firm. These design
specifications are outlined in Appendix A. U.S. Water has no control over design changes made
by the engineering design firm or the contracted
construction firm. It is common for changes to occur. Additional costs incurred due to system
design changes, plant layout changes, addition of
equipment or systems specified by the design or construction firm, safety additions and/or
process improvements shall be the responsibility of the
customer.




LIABILITY: U.S. Water Services shall not be liable for any bodily injury, death, or injury to or
destruction of tangible property except as the same may have been caused by the negligence of U.S.
Water Services. In no event shall U.S. Water Services be liable for any delays of special,
indirect, incidental or consequential damages. Purchaser agrees that the total limit of U.S. Water
Services’s liability (whether based on negligence, warranty, ??? liability or otherwise)
hereunder, shall not exceed the aggregate amount due U.S. Water Services for services rendered
under this contract. All claims, including claims for negligence or any other cause whatsoever,
shall be deemed waived unless made in writing and received by U.S. Water Services within one (1)
year after U.S. Water Services’s completion of work hereunder.



PRICE ADJUSTMENT: Any cost estimates or time frames stated herein are subject to equitable
adjustment in the event of differing or unforeseeable conditions, changes in applicable laws after
the date of this contract, unforeseeable delays or difficulties caused by acts of God, Purchaser or
any third parties. Prices of goods acquired by U.S. Water Services from others shall be adjusted to
reflect U.S. Water Services’s price in effect at time of shipment. The price of U.S. Water
Services’s goods will be adjusted to the price in effect at time of shipment in accordance with
U.S. Water Services’s current escalation policies or as specifically covered in this contract.



TERMS: Payment Payment terms shall be 50% upon order, 40% upon shipment and 10% upon start up or
90 days from shipment whichever is shorter. For extended projects, U.S. Water Services shall
submit invoices on a monthly basis for any and all work completed and materials or equipment
provide during the previous month. Past due invoices shall be subject to a delinquency charge of
one and one-half percent (1-1/2%) per month (eighteen percent (18%) per annum) unless a lower
charge is required under applicable law, in which case the lower rate shall apply. Purchaser
agrees to pay all collection fees, attorneys’ fees and cost incurred in the collection of any past
due amounts arising out of this contract. U.S. Water Services shall have the right to immediately
terminate this contract without further liability if Purchaser fails to make timely payment or
otherwise materially breaches this contract.




CONFIDENTIAL





 









 








			
	
	 	U.S. Water
Services/Utility Chemicals

330 South Cleveland St.

Cambridge, MN 55008 
	 
	 	Tel: (763) 689-3636 

Fax: (763) 689-3660





GUARANTEE AND LIABILITY: U.S. Water Services warrants that its labor supplied hereunder shall be
free from defect and shall conform to the standard of care in effect in its industry at the time of
performance of such labor for a period of twelve (12) months after substantial completion of U.S.
Water Services’s work. U.S. Water Services agrees, to the extent it is permitted, to pass on any
warranties provided by the manufactures of materials and/or equipment furnished under this
contract. U.S. Water Services itself provides no warranty, express, implied or otherwise, on any
such materials or equipment.



TITLE AND OWNERSHIP: In case of default of Purchaser’s part, U.S. Water Services shall have the
right to enter the premises upon which any material or equipment furnished herein have been
installed and retake such goods not then paid for and pursue any further remedy provided by law,
including recovery of attorneys’ fees and any deficiency to the maximum extent and in the manner
provide by law. Such materials and equipment shall retain their character as personal property of
U.S. Water Services until payment in full is received by U.S. Water Services, regardless of their
mode of attachment. Unless prior specific written instructions are received to the contrary,
surplus and replaced materials and equipment resulting from repair or installation work shall
become the property of U.S. Water Services.



DELIVERY: Shipment schedules and dates, expressed or implied, are contingent on normal conditions.
U.S. Water Services will not be responsible fc any delays in shipment or completion caused by
factors beyond its control such as, but not limited to, suppliers’ failures, accidents, work
stoppages or operation of or changes in the law.




	 	 	 	 	 	 	 	 	 
	PURCHASER	 	 	 	U.S. WATER SERVICES
	By:

	 	/s/ Tom Lynch
	 	 
	 	By:	 	 
	 

	 	 
	 	 	 	 	 	 
	Printed:

	 	Tom Lynch
	 	 	 	Printed:
	 	Kent K. Herbst
	 

	 	 
	 	 	 	 	 	 
	Title:

	 	Board Chairman
	 	 	 	Title:
	 	NAM- Ethanol Team Leader
	 

	 	 
	 	 	 	 	 	 
	Date:

	 	9-26-06
	 	 	 	Date:
	 	9/15/06
	 

	 	 
	 	 	 	 	 	 





CONFIDENTIAL





 









 










U.S. Water Services Chemical & Services Agreement



Siouxland Ethanol, LLC




Term



U.S. Water Services agrees to provide the necessary water treatment chemicals (reverse
osmosis, cooling tower, and boilers) and service program for a period of three years from the
startup of the Siouxland Ethanol, LLC plant, which is expected to be operational April, 2007.




Investment



Beginning April 1, 2007, Siouxland Ethanol, LLC agrees to pay U.S. Water Services $9,404.21
per month for specialty water treatment chemicals, testing reagents, engineering services,
environmental support services, and plant start up assistance. The payments will be made in
monthly installments according to invoices generated by U.S. Water Services, and this amount is
based on the nameplate production of 50 million gallons per year. State and local taxes will be
added to each invoice unless a tax exemption is on file with U.S. Water Services. This agreement
will automatically renew each year. Price increases may be taken on the anniversary date of the
contract provided that a 30-day notice of the increase is provided to the customer. All testing
reagents are listed in Schedule A-l and the specialty water treatment chemicals covered under this
agreement are listed in Schedule B-l.




Initial Order



Not included under the Chemical and Services Agreement are one-time use chemicals and lab
equipment. These items are outlined in Schedule D-l. The amount of these items is estimated to be
$22,090.77.




Not
To Exceed Costs For Chemicals



U.S. Water Services agrees to limit the annual chemical cost for the products in Schedule
A-l and B-l to a maximum of $112,850, provided the chemicals are applied within the recommended
limits specified by U.S. Water Services. If annual production and water usage are above nameplate
design the customer may be billed at a rate of $2,257.01 / 1,000,000 gallons additional ethanol
production. Nameplate design and water efficiencies are outlined in Schedule C-l. Operational
variances from the design basis outlined in Schedule C-l may result in additional charges. Charges
will be reconciled at the end of every quarter. All efficiencies are based on a quarterly average.




 









 













Termination



The customer or U.S. Water Services may terminate the chemical and service agreement with
30 days written notice. If the customer terminates the chemical and service agreement, outstanding
equipment balances owed, if any, and bundled discounts taken must be paid in full prior to
termination. In addition, all remaining opened chemical inventory that is part of this agreement,
(Schedule B-l) must be purchased prior to termination. U.S. Water owned equipment shall be
returned within 30 days of termination date. If U.S. Water Services terminates the chemical and
service agreement, the customer has the choice of continuing to pay equipment installments per the
installment schedule or may pay the outstanding amount in full.



The customer and U.S. Water Services agree that the results of any water treatment program depend
on the diligent application of the water treatment program and the proper operation of the
operating equipment. U.S. Water Services will not be responsible for any failure, caused in whole
or part, by the customer not implementing or following recommendations made by U.S. Water Services
personnel. Under no circumstances shall U.S. Water Services or the customer be liable to the other
for incidental or consequential damages.




	 	 	 	 	 	 	 	 	 	 	 
	Customer:	 	 	 	 	 	Supplier: U.S. Water Services	 	 
	 

	 	 	 	 	 	 	 	 	 	 
	 
	 	 	 	 	 	 	 	 	 	 
	By:

	 	/s/ Tom Lynch
	 	 	 	By:
	 	/s/ Kent K. Herbst	 	 
	 

	 	 
	 	 	 	 	 	 	 	 
	 

	 	(Signature)
	 	 	 	 	 	(Signature)	 	 
	 
	 	 	 	 	 	 	 	 	 	 
	 

	 	Tom Lynch
	 	 	 	 	 	Kent K. Herbst	 	 
	 

	 	 
	 	 	 	 	 	 	 	 
	 

	 	(Printed Name)
	 	 	 	 	 	(Printed Name)	 	 
	 
	 	 	 	 	 	 	 	 	 	 
	Title: Board Chairman	 	 	 	Title: Ethanol Team Leader	 	 
	 
	 	 	 	 	 	 	 	 	 	 
	Date: 9-26-06	 	 	 	Date: 9/15/06	 	 






Tax Exempt: Yes o No o





 









 










     Schedule
A-1



	 	 	 	 	 
	Test Kits Description	 	# of Units	 	Part No.
	SaniCheck AB
	 	3
	 	854 AN
	Total Alkalinity
	 	1
	 	226 A
	Total Alkalinity
	 	1
	 	226 C
	N/50
	 	4
	 	203 G
	Free Cl2 packets
	 	6
	 	H21055-69
	TDS Soln 3000 umhos
	 	1
	 	117/300F
	High Range Hardness Titrating Soln
	 	4
	 	145 G
	Low Range Hardness Titrating Soln
	 	2
	 	144 G
	Ca Hard. Buffer soln
	 	1
	 	107 A
	Ca Hard. Buffer soln
	 	1
	 	107 E
	Ca Indicator powder
	 	1
	 	109 B
	Ca Indicator powder
	 	1
	 	109 C
	BaCl solution 30%
	 	1
	 	101A
	BaCl solution 30%
	 	1
	 	101C
	Hard. Buffer Soln
	 	1
	 	138 A
	Hard. Buffer Soln
	 	1
	 	138 E
	Hard. Indicator Powder
	 	1
	 	139 B
	Hard. Indicator Powder
	 	1
	 	139 C
	4 Automatic 10 ml Burettes
	 	4
	 	702
	P Indicator
	 	1
	 	168 A
	P Indicator
	 	1
	 	168 C
	Starch Acid/Sulfite Indicator Powder
	 	3
	 	199 B
	Potassium Iodide Titrating Soln. N/80
	 	1
	 	175 G
	Polymer Buffer
	 	1
	 	511 C
	Polymer Buffer
	 	2
	 	511 E
	Polymer Titrant
	 	1
	 	512 C
	Polymer Titrant
	 	1
	 	512 E
	Iron Powder Packets 10 ml
	 	3
	 	H21057-69
	25 ml Sample Cells (round)
	 	6
	 	H1730-06
	Powder Pour Spout
	 	3
	 	799
	140 ml casserole
	 	1
	 	738
	Eye Dropper 0.5 and 1.0 ml
	 	4
	 	759
	Graduated Cylinder, Plastic 100 m
	 	1
	 	778






Additional Services




	 	 	 	 	 	 	 
	Services Description	 	# of Units	 	Supplier	 	Start up
	Corrosion coupon
	 	16
	 	USWS
	 	4*








 




			
	*	 	Corrosion coupons for start up include Copper, Carbon Steel, Stainless Steel
and Scaling coupon.




 









 















Schedule
B-1




	 	 	 	 	 
	System	 	Chemical	 	Use
	Boiler
	 	BWT-103-L Plus
	 	Oxygen Scavenger
	Boiler
	 	Boiler MP
	 	Scale/Corrosion Inhibitor
	Boiler
	 	RLT-35
	 	Condensate Treatment
	Boiler
	 	BWT-200B
	 	Alkalinity Adjustment
	Cooling Tower
	 	CWT-530A
	 	Scale/Corrosion Inhibitor
	Cooling Tower
	 	Biotrol 509
	 	Non-Oxidizing Biocide
	Reverse Osmosis
	 	RO-503
	 	RO Antiscalant
	Reverse Osmosis
	 	BWT-104
	 	Chlorine Scavenger
	Reverse Osmosis
	 	ROC-20
	 	RO CIP Chemical
	Reverse Osmosis
	 	ROC-50 Plus
	 	CO CIP Chemical





Chemicals
and equipment not specifically listed in Schedule B-1 above are excluded from this
agreement. These include:





	 	•	 	Sulfuric acid
	 
	 	•	 	Chlorine
	 
	 	•	 	Process chemicals




It is the responsibility of the plant to order totes of 12% Sodium Hypochlorite, 66° Baume Sulfuric
Acid, and a pallet of salt prior to start up.





 









 










Schedule
C-1




Siouxland Ethanol (Jackson, NE)




(City, Well, River, Gray)

(NPDES, POTW, Infiltration, Irrigation)




	 	 	 	 	 
	WATER SOURCE: 

DISCHARGE:

	 	Well

NPDES
	 	






U.S. WATER SERVICES

CONFIDENTIAL

Water Balance




	 	 	 	 	 	 	 	 	 	 	 	 	 
	 Days of Operation per Year	 	353	 	days	 	 
	 Plant Production Capacity	 	50	 	MMGPY	 	 
	 TOTAL WATER IN	 	GPM	 	GPD	 	GPY
	Cooling Tower (non-RO)
	 	 	0	 	 	 	0	 	 	 	0	 
	Cooling Tower (RO)
	 	 	496	 	 	 	714,764	 	 	 	252,311,564	 
	Boiler (RO)
	 	 	87	 	 	 	125,216	 	 	 	44,201,167	 
	MMFGS Filters (Regeneration Flow)
	 	 	0	 	 	 	0	 	 	 	0	 
	Softener Regeneration
	 	 	0.08	 	 	 	109	 	 	 	38,306	 
	Final Ethanol Process (not Included)
	 	 	78	 	 	 	112,320	 	 	 	39,648,960	 
	Process Demand (with RO)
	 	 	135	 	 	 	194,793	 	 	 	68,761,833	 
	Total Water In
	 	 	719/719	 p	 	 	1,034,881	 	 	 	365,312,870	 






	 	 	 	 	 	 	 	 	 	 	 	 	 
	TOTAL WATER OUT	 	GPM	 	GPD	 	GPY
	Cooling Towers
	 	 	55	 	 	 	78,624	 	 	 	27,754,272	 
	RO Unit
	 	 	320	 	 	 	460,463	 	 	 	162,543,602	 
	Multimedia Filters
	 	 	0	 	 	 	0	 	 	 	0	 
	Softeners
	 	 	0.08	 	 	 	109	 	 	 	38,306	 
	Boiler BD (Going to Cook)
	 	 	0.0	 	 	 	0	 	 	 	0	 
	Ethanol
Process Reoyeled
	 	 	 	 	 	 	 	 	 	 	 	 
	Tower Evaporaton (not included in total)
	 	 	218	 	 	 	314,496	 	 	 	111,017,088	 
	Total Discharge
	 	 	374	 	 	 	539,196	 	 	 	190,336,180	 
	Total Water
Out (Includes Evap)
	 	 	593	 	 	 	853,692	 	 	 	301,353,268	 






COOLING TOWERS




	 	 	 	 	 	 	 
	Cooling Tower Recirculation Rate
	 	 	26,000	 	 	gpm
	AT Across Cooling Tower
	 	 	10	 	 	oF
	Evaporation Factor
	 	 	0.84	 	 	% evap / 10oF
	Cycles of Concentration
	 	 	5	 	 	 
	Blowdown Quality
	 	 	101	 	 	TDS
	RO Makeup Quality
	 	 	20	 	 	TDS
	Well Water Makeup Quality
	 	 	788	 	 	TDS
	Evaporation Rate
	 	 	218	 	 	gpm
	Blowdown
	 	 	55	 	 	gpm
	Total Tower Makeup
	 	 	273	 	 	gpm
	Tower Alkalinity Target
	 	 	300	 	 	mg/L as CaCO3
	Tower Acid Dosing
	 	 	0	 	 	mg/L H2SO4






BOILER




	 	 	 	 	 	       	 
	Boiler Steam Rate
	 	 	101,000	 	 	11/hr
	Condensate Return
	 	 	78	%	 	 
	Cycles of Concentration
	 	 	60	 	 	 
	Blowdown %
	 	 	1.67	%	 	as Percentage of Steam Flow
	Blowdown Rate
	 	 	3.4	 	 	gpm      Blowdown to Cook
	Makeup Rate
	 	 	48	 	 	gpm






FILTRATION SYSTEM




	 	 	 	 	 	 	 
	Location of Filters
	 	None	 	 
	Type of Filters
	 	Greenland	 	 
	Number of Filters
	 	 	8	 	 	 
	Filter Diameter
	 	 	72	 	 	inches
	Number of
Backwashes Per Day Per Vessel
	 	 	1.0	 	 	ite
I – every day, 0.5 = every other day)
	Backwash Time
	 	 	20	 	 	minutes (for each filter)
	% of Backwashes Tank is Sized to Capture
	 	 	8	 	 	 
	Backwash Rate
	 	 	0	 	 	gpm
	Total Average Daily Usage Rate
	 	 	0	 	 	gpm      Control Rate
	Backwash Holding Tank Capacity
	 	 	0	 	 	gallons
	Calculated Flux Rate (Normal Operation)
	 	 	0.00	 	 	gpm/ft2
	Calculated Flux Rate (During Backwash)
	 	 	0.00	 	 	gpm/ft2






POLISHING SOFTENERS




	 	 	 	 	 	       	 
	Number of Softeners
	 	 	3	 	 	 
	Softener Diameter
	 	 	30	 	 	inches
	Cubic Feet of Resin in Each
	 	 	15	 	 	ft3
	Days Between Regeneration
	 	 	23	 	 	days
	Discharge Rate
	 	 	3	 	 	gpm    
  Don’t Capture Brine
	Volume of Regenerant
	 	 	2496	 	 	gallons






REVERSE OSMOSIS




	 	 	 	 	 	 	 
	RO Unit % Recovery
	 	 	55.00	%	 	 
	Feedwater
Temperature
	 	 	77	 	 	oF
	Feed Rate to RO Unit
	 	 	727	 	 	gpm
	RO Machine
Selection
	 	USW-400	 	 	gpm
	RO Corrected Permeate Flow
	 	 	400	 	 	gpm
	RO Reject Flow
	 	 	320	 	 	gpm
	RO to Boiler
	 	 	48	 	 	gpm
	Extra RO to Tower
	 	 	273	 	 	gpm
	Extra RO to Process
	 	 	70	 	 	gpm







	 	 	 	 	 	 	 	 	 
	COOLING TOWER MAKE-UP	 	RO	 	WELL
	GPM
	 	 	273	 	 	 	0	 
	Makeup %
	 	 	100	%	 	 	0	%






	 	 	 	 	 	 	 	 	 
	PROCESS MAKE-UP	 	RO	 	WELL
	GPM
	 	 	70	 	 	 	8	 
	Makeup %
	 	 	90	%	 	 	10	%






	 	 	 
	Date:
	 	September 14, 2006
	By:
	 	Kent K. ???
	Revision:
	 	2






	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 	 	 	 	 	 	Raw Water	 	RO	 	RO	 	RO	 	Cycled	 	Process	 	Combined	 	RO, Tower	 	RO, Tower
	Constituent (mg/l)	 	As	 	Source	 	Feed	 	Permeate	 	Reject	 	Tower	 	Make-Up	 	RO & Tower	 	& Filters	 	Filters, Soft
	TOC
	 	 	—	 	 	 	2.2	 	 	 	2.2	 	 	 	0.1	 	 	 	4.8	 	 	 	0.4	 	 	 	0.3	 	 	 	4.2	 	 	 	4.2	 	 	 	3.8	 
	P-Alkalinity
(CaCO3)
	 	CaCO3	 	 	0	 	 	 	0	 	 	 	0	 	 	 	0	 	 	 	0	 	 	 	0	 	 	 	0	 	 	 	0	 	 	 	0	 
	M-Alkalinity
(CaCO3)
	 	CaCO3	 	 	437	 	 	 	437	 	 	 	16	 	 	 	952	 	 	 	79	 	 	 	59	 	 	 	824	 	 	 	824	 	 	 	759	 
	Bromide
	 	Br	 	 	0.5	 	 	 	0.5	 	 	 	0.0	 	 	 	1.1	 	 	 	0.0	 	 	 	0.1	 	 	 	0.9	 	 	 	0.9	 	 	 	0.9	 
	Chloride
	 	Cl	 	 	84	 	 	 	84	 	 	 	2	 	 	 	185	 	 	 	8	 	 	 	10	 	 	 	159	 	 	 	159	 	 	 	494	 
	Fluoride
	 	 	F	 	 	 	0.7	 	 	 	0.7	 	 	 	0.0	 	 	 	1.5	 	 	 	0.1	 	 	 	0.1	 	 	 	1.3	 	 	 	1.3	 	 	 	1.2	 
	Nitrate
	 	NO3	 	 	1.0	 	 	 	1.0	 	 	 	0.1	 	 	 	2.1	 	 	 	0.5	 	 	 	0.2	 	 	 	1.9	 	 	 	1.9	 	 	 	1.7	 
	Nitrite
	 	NO2	 	 	0.5	 	 	 	0.5	 	 	 	0.0	 	 	 	1.1	 	 	 	0.2	 	 	 	0.1	 	 	 	0.9	 	 	 	0.9	 	 	 	0.9	 
	Total Phosphate
	 	PO4	 	 	1.0	 	 	 	1.0	 	 	 	0.0	 	 	 	2.2	 	 	 	0.0	 	 	 	0.1	 	 	 	1.9	 	 	 	1.9	 	 	 	1.7	 
	Total Inorganic Phosphate
	 	PO4	 	 	0.8	 	 	 	0.8	 	 	 	0.0	 	 	 	1.8	 	 	 	0.1	 	 	 	0.1	 	 	 	1.5	 	 	 	1.5	 	 	 	1.4	 
	Dissolved Ortho Phosphate
	 	PO4	 	 	0.0	 	 	 	0.0	 	 	 	0.0	 	 	 	0.0	 	 	 	0.0	 	 	 	0.0	 	 	 	0.0	 	 	 	0.0	 	 	 	0.0	 
	Reactive Silice
	 	SiO2	 	 	22.0	 	 	 	22.0	 	 	 	0.8	 	 	 	47.9	 	 	 	4.0	 	 	 	3.0	 	 	 	41.5	 	 	 	41.5	 	 	 	38.2	 
	Sulfur
	 	SO4	 	 	135	 	 	 	135	 	 	 	0	 	 	 	299	 	 	 	2	 	 	 	14	 	 	 	256	 	 	 	256	 	 	 	235	 
	Total Hardness
	 	CaCO3	 	 	572	 	 	 	572	 	 	 	2	 	 	 	1.262	 	 	 	10	 	 	 	61	 	 	 	1.079	 	 	 	1.079	 	 	 	1,098	 
	Calcium Hardness
	 	CaCO3	 	 	388	 	 	 	388	 	 	 	1	 	 	 	860	 	 	 	7	 	 	 	41	 	 	 	736	 	 	 	736	 	 	 	749	 
	Magnesium Hardness
	 	CaCO3	 	 	181	 	 	 	181	 	 	 	1	 	 	 	401	 	 	 	3	 	 	 	19	 	 	 	343	 	 	 	343	 	 	 	349	 
	Aluminum
	 	Al	 	 	0.1	 	 	 	0.1	 	 	 	0.0	 	 	 	0.2	 	 	 	0.0	 	 	 	0.01	 	 	 	0.2	 	 	 	0.2	 	 	 	0.2	 
	Arsenic
	 	As	 	 	0.1	 	 	 	0.1	 	 	 	0.0	 	 	 	0.2	 	 	 	0.0	 	 	 	0.01	 	 	 	0.2	 	 	 	0.2	 	 	 	0.2	 
	Barium
	 	Ba	 	 	0.35	 	 	 	0.35	 	 	 	0.00	 	 	 	0.77	 	 	 	0.02	 	 	 	0.04	 	 	 	0.66	 	 	 	0.66	 	 	 	0.61	 
	Beryllium
	 	Be	 	 	0.01	 	 	 	0.01	 	 	 	0.00	 	 	 	0.02	 	 	 	0.00	 	 	 	0.00	 	 	 	0.02	 	 	 	0.02	 	 	 	0.02	 
	Boron
	 	 	B	 	 	 	0.2	 	 	 	0.2	 	 	 	0.0	 	 	 	0.5	 	 	 	0.0	 	 	 	0.0	 	 	 	0.4	 	 	 	0.4	 	 	 	0.4	 
	Cadmium
	 	Cd	 	 	0.01	 	 	 	0.01	 	 	 	0.00	 	 	 	0.02	 	 	 	0.00	 	 	 	0.00	 	 	 	0.02	 	 	 	0.02	 	 	 	0.02	 
	Chromium
	 	Cr	 	 	0.03	 	 	 	0.03	 	 	 	0.00	 	 	 	0.07	 	 	 	0.00	 	 	 	0.00	 	 	 	0.06	 	 	 	0.06	 	 	 	0.05	 
	Cobalt
	 	Co	 	 	0.01	 	 	 	0.01	 	 	 	0.00	 	 	 	0.02	 	 	 	0.00	 	 	 	0.00	 	 	 	0.02	 	 	 	0.02	 	 	 	0.02	 
	Copper
	 	Cu	 	 	0.05	 	 	 	0.05	 	 	 	0.00	 	 	 	0.11	 	 	 	0.00	 	 	 	0.01	 	 	 	0.09	 	 	 	0.09	 	 	 	0.09	 
	Iron
	 	Fe	 	 	7.70	 	 	 	7.70	 	 	 	0.14	 	 	 	16.94	 	 	 	0.70	 	 	 	0.92	 	 	 	14.57	 	 	 	14.57	 	 	 	13.41	 
	Lead
	 	Pb	 	 	0.05	 	 	 	0.05	 	 	 	0.00	 	 	 	0.11	 	 	 	0.00	 	 	 	0.01	 	 	 	0.09	 	 	 	0.09	 	 	 	0.09	 
	Manganese
	 	Mn	 	 	0.52	 	 	 	0.52	 	 	 	0.01	 	 	 	1.14	 	 	 	0.05	 	 	 	0.06	 	 	 	0.98	 	 	 	0.98	 	 	 	0.91	 
	Molybdenum
	 	Mo	 	 	0.06	 	 	 	0.06	 	 	 	0.00	 	 	 	0.13	 	 	 	0.01	 	 	 	0.01	 	 	 	0.11	 	 	 	0.11	 	 	 	0.10	 
	Nickel
	 	Ni	 	 	0.01	 	 	 	0.01	 	 	 	0.00	 	 	 	0.02	 	 	 	0.00	 	 	 	0.00	 	 	 	0.02	 	 	 	0.02	 	 	 	0.02	 
	Potassium
	 	 	K	 	 	 	12	 	 	 	12	 	 	 	0	 	 	 	26	 	 	 	1	 	 	 	1	 	 	 	23	 	 	 	23	 	 	 	21	 
	Selenium
	 	Se	 	 	0.1	 	 	 	0.1	 	 	 	0.0	 	 	 	0.2	 	 	 	0.0	 	 	 	0.0	 	 	 	0.2	 	 	 	0.2	 	 	 	0.2	 
	Sodium
	 	Na	 	 	51	 	 	 	51	 	 	 	1	 	 	 	112	 	 	 	5	 	 	 	6	 	 	 	97	 	 	 	97	 	 	 	227	 
	Strontium
	 	Sr	 	 	1.6	 	 	 	1.6	 	 	 	0.0	 	 	 	3.5	 	 	 	0.1	 	 	 	0.2	 	 	 	3.0	 	 	 	3.0	 	 	 	2.8	 
	Thalium
	 	Tl	 	 	0.1	 	 	 	0.1	 	 	 	0.0	 	 	 	0.2	 	 	 	0.0	 	 	 	0.0	 	 	 	0.2	 	 	 	0.2	 	 	 	0.2	 
	Tin
	 	Sn	 	 	0.05	 	 	 	0.05	 	 	 	0.00	 	 	 	0.11	 	 	 	0.01	 	 	 	0.01	 	 	 	0.09	 	 	 	0.09	 	 	 	0.09	 
	Titanium
	 	Ti	 	 	0.01	 	 	 	0.01	 	 	 	0.00	 	 	 	0.02	 	 	 	0.00	 	 	 	0.00	 	 	 	0.02	 	 	 	0.02	 	 	 	0.02	 
	Vanodium
	 	 	V	 	 	 	0.01	 	 	 	0.01	 	 	 	0.00	 	 	 	0.02	 	 	 	0.00	 	 	 	0.00	 	 	 	0.02	 	 	 	0.02	 	 	 	0.02	 
	Zinc
	 	Zn	 	 	0.01	 	 	 	0.01	 	 	 	0.00	 	 	 	0.02	 	 	 	0.00	 	 	 	0.00	 	 	 	0.02	 	 	 	0.02	 	 	 	0.02	 
	TDS
	 	 	—	 	 	 	788	 	 	 	788	 	 	 	20	 	 	 	1,727	 	 	 	101	 	 	 	99	 	 	 	1,490	 	 	 	1,490	 	 	 	1,934	 
	Ca x SO4
	 	 	—	 	 	 	20,952	 	 	 	20,952	 	 	 	0	 	 	 	103,053	 	 	 	7	 	 	 	235	 	 	 	75,396	 	 	 	75,396	 	 	 	70,549	 
	Cl + SO4
	 	 	—	 	 	 	219	 	 	 	219	 	 	 	2	 	 	 	484	 	 	 	10	 	 	 	24	 	 	 	415	 	 	 	415	 	 	 	730	 
	Fe + Mn
	 	 	—	 	 	 	8.2	 	 	 	8.2	 	 	 	0.1	 	 	 	18.1	 	 	 	0.7	 	 	 	1.0	 	 	 	15.6	 	 	 	15.6	 	 	 	14.3	 
	Mg x SiO2
	 	 	—	 	 	 	967	 	 	 	967	 	 	 	0	 	 	 	4,668	 	 	 	3	 	 	 	14	 	 	 	3,459	 	 	 	3,459	 	 	 	3,242	 
	Ca x Mg x SiO2
	 	 	—	 	 	 	150,002	 	 	 	150,002	 	 	 	0	 	 	 	1,606,739	 	 	 	9	 	 	 	227	 	 	 	1,018,394	 	 	 	1,018,394	 	 	 	971,184	 
	NO3 + NO2
	 	 	N	 	 	 	0.4	 	 	 	0.4	 	 	 	0.0	 	 	 	0.8	 	 	 	0.2	 	 	 	0.1	 	 	 	0.7	 	 	 	0.7	 	 	 	0.7	 
	Conductivity
	 	μmhos	 	 	1,270	 	 	 	1,270	 	 	 	35	 	 	 	2,782	 	 	 	163	 	 	 	159	 	 	 	2,400	 	 	 	2,400	 	 	 	2,771	 





Process make-up doesn’t take into account the boiler blowdown (if applicable)

















 










Schedule
D-1




	 	 	 	 	 
	Part Number	 	Description	 	Use
	BoilOut

	 	BoilOut
	 	Chemical for Cleaning Boiler
	TowerClean 819

	 	TowerClean 819
	 	Chemical for Cleaning Condenser System
	DR-890

	 	Spectrometer
	 	Digital Testing of System Chemistries
	TDS EP-10

	 	Conductivity Meter
	 	Used to Determine Operating Levels
	717

	 	Auto 10 mL Burettes
	 	Testing Titration Methods
	60060

	 	Casserole
	 	Testing Titration Methods
	770

	 	Graduated Cylinders
	 	Testing Titration Methods
	759

	 	Eye Droppers
	 	Reagent Dosing
	Auto SDI

	 	Auto SDI
	 	Determine RO Feed SDI Level