Document:

Description of Long-Term EBIT Bonus Plan

 EXHIBIT 10-C-2 
  
 Description of Long-Term EBIT Bonus Plan 
 Established Under the Management Incentive Plan 
  
 The Company had in effect during 2003, 2004 and 2005 a long-term incentive performance plan established under the Management Incentive Plan which was approved by stockholders at the Company’s April 15, 2004
annual meeting. 
  
 The Compensation and Stock Option Committee of
the Board of Directors, which is comprised of “independent directors” under the New York Stock Exchange listing standards and “outside directors” as defined in Section 162(m) of the Internal Revenue Code, approved the plan
which provides an opportunity for certain of the key executives of the Company and its subsidiaries, including Named Executive Officers to earn qualified performance-based compensation upon the attainment of specified earnings before interest and
taxes (“EBIT”) goals established for certain of the Company’s operating groups. 
  
 Under the terms of the plan, upon the attainment by any specific operating group of a pre- established EBIT goal during the long-term performance period—fiscal years 2003, 2004 or 2005, certain of the key
executives of the Company are awarded a cash bonus equal to a specified percentage of such executive’s total EBIT award, and certain operating company executives are paid their full EBIT award. If each of the Company’s operating groups
achieves its EBIT goal in the same fiscal year, 100% of the executive’s total EBIT award would be paid to him or her. Once an operating group attains its EBIT goal and an award is paid to an executive, the EBIT goal has been attained and no
other payments are made in subsequent years of the performance period with respect to EBIT attainment by that particular operating unit.Registration Rights Agreement

 Exhibit 4.2 
  

REGISTRATION RIGHTS AGREEMENT 
  
 This REGISTRATION RIGHTS AGREEMENT (this “Agreement”) is entered into as of June 28, 2005, by and among Basin Water, Inc., a
California corporation (the “Company”), and the undersigned holders (i) of Series A Preferred Stock (the “Series A Preferred Holders”) of the Company, no par value (the “Series A Preferred
Stock”), and (ii) of Series B Preferred Stock (the “Series B Preferred Holders”) of the Company, no par value (the “Series B Preferred Stock”). 
  
 RECITALS 
  
 WHEREAS, prior to June 28, 2005, the holders of Series A Preferred Stock and Series B Preferred Stock were granted
certain registration rights with respect to such shares in the Company’s Articles of Incorporation, as amended prior to such date (the “Prior Articles”); 
  
 WHEREAS, on June 28, 2005, the Company obtained requisite approval of the Company’s shareholders, and thereafter
filed amended and restated Articles of Incorporation, which, among other things, deleted such registration rights from the Articles of Incorporation of the Company; and 
  
 WHEREAS, the Investors and the Company hereby agree that this Agreement shall govern the rights of the Investors to cause
the Company to register shares of Common Stock issued or issuable to them and certain other matters as set forth herein; 
  
 NOW, THEREFORE, in consideration of the premises and the mutual promises set forth in this Agreement; 
  
 THE PARTIES HEREBY AGREE AS FOLLOWS: 
  
 1. Registration Rights. 
  
 1.1 Definitions. For purposes of this Agreement: 
  
 (a) The term “Act” means the Securities Act of 1933, as
amended. 
  
 (b) The term “Form S-3” means such
form under the Act as in effect on the date hereof or any registration form under the Act subsequently adopted by the SEC that permits inclusion or incorporation of substantial information by reference to other documents filed by the Company with
the SEC. 
  
 (c) The term “Holder” means any
person owning or having the right to acquire Registrable Securities or any assignee thereof in accordance with Section 1.11 hereof. 
  
 (d) The term “Initial Offering” means the Company’s first firm commitment underwritten public offering of its Common Stock under the
Act. 

 (e) The term “Investor” means each Series A Preferred Holder and Series B Preferred
Holder set forth on Schedule A, or persons who have acquired shares of Series A Preferred Stock or Series B Preferred Stock from any of such persons or their transferees or assignees in accordance with the provisions of this Agreement. 

 
 (f) The term “1934 Act” means the Securities Exchange Act
of 1934, as amended. 
  
 (g) The terms
“register,” “registered,” and “registration” refer to a registration effected by preparing and filing a registration statement or similar document in compliance with the Act, and the declaration or
ordering of effectiveness of such registration statement or document. 
  
 (h) The term “Registrable Securities” means (i) the Series A Registrable Securities (as defined below), (ii) the Series B Registrable Securities (as defined below), and (iii) any Common Stock of the Company
issued as (or issuable upon the conversion or exercise of any warrant, right or other security that is issued as) a dividend or other distribution with respect to, or in exchange for, or in replacement of, the shares referenced in (i) and
(ii) above, excluding in all cases, however, (A) any Registrable Securities sold by a person in a transaction in which his rights under this Section 1 are not assigned, (B) any securities previously registered and sold or sold
pursuant to Rule 144 of the Act, and (C) any securities eligible for sale under Rule 144 of the Act. 
  
 (i) The number of shares of “Registrable Securities” outstanding shall be determined by the number of shares of Common Stock outstanding
that are, and the number of shares of Common Stock issuable pursuant to then exercisable or convertible securities that are, Registrable Securities. 
  
 (j) The term “SEC” means the Securities and Exchange Commission. 
  
 (k) The term “Series A Registrable Securities” means the Common Stock issuable or issued upon conversion of
the Series A Preferred Stock of the Company. 
  
 (l) The term
“Series B Registrable Securities” means the Common Stock issuable or issued upon conversion of the Series B Preferred Stock of the Company. 
  
 1.2 Demand Registration. 
  
 (a) Subject to the conditions of this Section 1.2, if the Company shall receive at any time after the earlier of (i) three (3) years after
the date of this Agreement or (ii) six (6) months after the effective date of the Initial Offering, a written request from: (x) the Holders of in excess of fifty percent (50%) of the Series A Registrable Securities then
outstanding or (y) the Holders of in excess of fifty percent (50%) of the Series B Registrable Securities then outstanding (in any such case, the “Initiating Holders”) that the Company file a registration statement under
the Act covering the registration of Registrable Securities with an anticipated offering price (net of underwriting discounts and commissions) of at least $10,000,000, then the Company shall, within thirty (30) days of the receipt thereof, give
written notice of such request to all Holders, and subject to the limitations of this Section 1.2, use commercially reasonable efforts to effect, as soon as practicable, the registration under the Act of all Registrable Securities that the
Holders request to be registered in a written request received by the Company within twenty (20) days of the mailing of the Company’s notice pursuant to this Section 1.2(a). 
  

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 (b) If the Initiating Holders intend to distribute the Registrable Securities covered by their request by
means of an underwriting, they shall so advise the Company as a part of their request made pursuant to this Section 1.2 and the Company shall include such information in the written notice referred to in Section 1.2(a). In such event, the
right of any Holder to include its Registrable Securities in such registration shall be conditioned upon such Holder’s participation in such underwriting and the inclusion of such Holder’s Registrable Securities in the underwriting (unless
otherwise mutually agreed by a majority in interest of the Initiating Holders and such Holder) to the extent provided herein. All Holders proposing to distribute their securities through such underwriting shall enter into an underwriting agreement
in customary form with the underwriter or underwriters selected for such underwriting by the Company. Notwithstanding any other provision of this Section 1.2, if the underwriter advises the Company that marketing factors require a limitation of
the number of securities underwritten (including Registrable Securities), then the Company shall so advise all Holders of Registrable Securities that would otherwise be underwritten pursuant hereto, and the number of shares that may be included in
the underwriting shall be allocated to the Holders of such Registrable Securities on a pro rata basis based on the number of Registrable Securities held by all such Holders (including the Initiating Holders). Any Registrable Securities excluded or
withdrawn from such underwriting shall be withdrawn from the registration. 
  
 (c) The Company shall not be required to effect a registration pursuant to this Section 1.2: 
  
 (i) in any particular jurisdiction in which the Company would be required to execute a general consent to service of process in effecting such
registration, unless the Company is already subject to service in such jurisdiction and except as may be required under the Act; or 
  
 (ii) after the Company has effected one (1) registration pursuant to this Section 1.2, and such registration has been declared or ordered
effective; or 
  
 (iii) during the period starting with the date
sixty (60) days prior to the Company’s good faith estimate of the date of the filing of, and ending on a date one hundred eighty (180) days following the effective date of, a Company-initiated registration, provided that the Company
is actively employing in good faith commercially reasonable efforts to cause such registration statement to become effective; or 
  
 (iv) if the Initiating Holders propose to dispose of Registrable Securities that may be registered on Form S-3 pursuant to Section 1.4 hereof; or

  
 (v) if the Company shall furnish to Holders requesting a
registration statement pursuant to this Section 1.2, a certificate signed by the Company’s Chief Executive Officer or President stating that in the good faith judgment of the Board of Directors of the Company, it would be detrimental to
the Company and its shareholders for such registration statement to be effected at such time, in which event the Company shall have the right to defer 
  

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 such filing for a period of not more than one hundred twenty (120) days after receipt of the request of the
Initiating Holders, provided that such right to delay a request shall be exercised by the Company not more than twice in any twelve (12)-month period. 
  
 1.3 Piggyback Registration. 
  
 (a) If after the Initial Offering, and ending five (5) years following the date of such Initial Offering, (but without any obligation to do so) the
Company proposes to register (including for this purpose a registration effected by the Company for shareholders other than the Holders) any of its stock or other securities under the Act in connection with the public offering of such securities
(other than the initial public offering of the Company’s Common Stock, a registration relating solely to the sale of securities to participants in a Company stock plan, a registration relating to a corporate reorganization or other transaction
under Rule 145 of the Act, a registration on any form that does not include substantially the same information as would be required to be included in a registration statement covering the sale of the Registrable Securities, or a registration in
which the only Common Stock being registered is Common Stock issuable upon conversion of debt securities that are also being registered), the Company shall, at such time, promptly give each Holder written notice of such registration. Upon the
written request of each Holder given within twenty (20) days after mailing of such notice by the Company in accordance with Section 3.5, the Company shall, subject to the provisions of Section 1.3(c), use commercially reasonable
efforts to cause to be registered under the Act all of the Registrable Securities that each such Holder has requested to be registered. 
  
 (b) The Company shall have the right to terminate or withdraw any registration initiated by it under this Section 1.3 prior to the effectiveness of
such registration whether or not any Holder has elected to include securities in such registration. The expenses of such withdrawn registration shall be borne by the Company in accordance with Section 1.7 hereof. 
  
 (c) In connection with any offering involving an underwriting of shares of
the Company’s capital stock, the Company shall not be required under this Section 1.3 to include any of the Holders’ securities in such underwriting unless they accept the terms of the underwriting as agreed upon between the Company
and the underwriters selected by it (or by other persons entitled to select the underwriters) and enter into an underwriting agreement in customary form with an underwriter or underwriters selected by the Company, and then only in such quantity as
the underwriters determine in their sole discretion will not jeopardize the success of the offering by the Company. If the total amount of securities, including Registrable Securities, requested by shareholders to be included in such offering
exceeds the amount of securities sold other than by the Company that the underwriters determine in their sole discretion is compatible with the success of the offering, then the Company shall be required to include in the offering only that number
of such securities, including Registrable Securities, that the underwriters determine in their sole discretion will not jeopardize the success of the offering (the securities so included to be apportioned pro rata among the selling Holders according
to the total amount of securities entitled to be included therein owned by each selling Holder or in such other proportions as shall mutually be agreed to by such selling Holders), but in no event shall any shares being sold by a shareholder
exercising a demand registration right similar to that granted in Section 1.2 be excluded from such offering. For purposes of the preceding parenthetical concerning apportionment, for any selling shareholder that is a Holder of Registrable
Securities 
  

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 and that is a partnership or corporation, the partners, retired partners and shareholders of such Holder, or the estates
and family members of any such partners and retired partners and any trusts for the benefit of any of the foregoing persons shall be deemed to be a single “selling Holder,” and any pro rata reduction with respect to such “selling
Holder” shall be based upon the aggregate amount of Registrable Securities owned by all such related entities and individuals. 
  
 1.4 Form S-3 Registration. In case the Company shall receive from the Holders of at least fifty percent (50%) of the Registrable Securities a
written request or requests that the Company effect a registration on Form S-3 with respect to all or a part of the Registrable Securities owned by such Holder or Holders, the Company shall: 
  
 (a) promptly give written notice of the proposed registration, and any
related qualification or compliance, to all other Holders; and 
  
 (b) use commercially reasonable efforts to effect, as soon as practicable, such registration as may be so requested and as would permit or facilitate the sale and distribution of all or such portion of such Holders’ Registrable
Securities as are specified in such request, together with all or such portion of the Registrable Securities of any other Holders joining in such request as are specified in a written request given within fifteen (15) days after receipt of such
written notice from the Company, provided, however, that the Company shall not be obligated to effect any such registration, qualification or compliance, pursuant to this Section 1.4: 
  
 (i) if Form S-3 is not available for such offering by the Holders;

  
 (ii) if the Holders, together with the holders
of any other securities of the Company entitled to inclusion in such registration, propose to sell Registrable Securities and such other securities (if any) at an aggregate price to the public (net of any underwriters’ discounts or commissions)
of less than $3,000,000; 
  
 (iii) if the Company
shall furnish to the Holders a certificate signed by the Chief Executive Officer or President of the Company stating that in the good faith judgment of the Board of Directors of the Company, it would be detrimental to the Company and its
shareholders for such Form S-3 Registration to be effected at such time, the Company shall have the right to defer the filing of the Form S-3 registration statement for a period of not more than one hundred twenty (120) days after receipt of
the request of the Holder or Holders under this Section 1.4; provided, however, that the Company shall not utilize this right more than twice in any twelve (12) month period; 
  
 (iv) if the Company has, within the twelve (12) month period preceding the date of such request,
already effected one (1) registration on Form S-3 for the Holders pursuant to this Section 1.4; or 
  
 (v) in any particular jurisdiction in which the Company would be required to qualify to do business or to execute a general consent to
service of process in effecting such registration, qualification or compliance. 
  
 (c) Subject to the foregoing, the Company shall file a registration statement covering the Registrable Securities and other securities so requested to be registered as soon as practicable after receipt of the
requisite request or requests of the Holders. Registrations effected pursuant to this Section 1.4 shall not be counted as a request for registration effected pursuant to Section 1.2. 
  

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 1.5 Obligations of the Company. Whenever required under this Section 1 to effect the
registration of any Registrable Securities, the Company shall, as expeditiously as reasonably possible: 
  
 (a) prepare and file with the SEC a registration statement with respect to such Registrable Securities and use commercially reasonable efforts to cause
such registration statement to become effective, and, upon the request of the Holders of a majority of the Registrable Securities registered thereunder, keep such registration statement effective for a period of up to one hundred twenty
(120) days or, if earlier, until the distribution contemplated in the Registration Statement has been completed; 
  
 (b) prepare and file with the SEC such amendments and supplements to such registration statement and the prospectus used in connection with such
registration statement as may be necessary to comply with the provisions of the Act with respect to the disposition of all securities covered by such registration statement; 
  
 (c) furnish to the Holders such numbers of copies of a prospectus, including a preliminary prospectus, in conformity with
the requirements of the Act, and such other documents as they may reasonably request in order to facilitate the disposition of Registrable Securities owned by them; 
  
 (d) use commercially reasonable efforts to register and qualify the securities covered by such registration statement under
such other securities or Blue Sky laws of such jurisdictions as shall be reasonably requested by the Holders, provided that the Company shall not be required in connection therewith or as a condition thereto to qualify to do business or to file a
general consent to service of process in any such states or jurisdictions; 
  
 (e) in the event of any underwritten public offering, enter into and perform its obligations under an underwriting agreement, in usual and customary form, with the managing underwriter of such offering; 
  
 (f) notify each Holder of Registrable Securities covered by such registration
statement at any time when a prospectus relating thereto is required to be delivered under the Act or the happening of any event as a result of which the prospectus included in such registration statement, as then in effect, includes an untrue
statement of a material fact or omits to state a material fact required to be stated therein or necessary to make the statements therein not misleading in the light of the circumstances then existing; 
  
 (g) cause all such Registrable Securities registered hereunder to be listed
on each securities exchange on which similar securities issued by the Company are then listed; and 
  
 (h) provide a transfer agent and registrar for all Registrable Securities registered pursuant hereunder and a CUSIP number for all such Registrable
Securities, in each case not later than the effective date of such registration. 
  

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 1.6 Information From Holder. It shall be a condition precedent to the obligations of the Company
to take any action pursuant to this Section 1 with respect to the Registrable Securities of any selling Holder that such Holder shall furnish to the Company such information regarding itself, the Registrable Securities held by it, and the
intended method of disposition of such securities as shall be required to effect the registration of such Holder’s Registrable Securities. 
  
 1.7 Expenses of Registration. All registration expenses of the Holders (other than underwriting discounts and commissions) incurred in connection
with registrations, filings or qualifications pursuant to Sections 1.2, 1.3, and up to two (2) Form S-3 registrations pursuant to Section 1.4, including (without limitation) all registration, filing and qualification fees, printers’
and accounting fees, and the reasonable documented fees and expenses of one counsel for the Holders of all Registrable Securities, shall be borne by the Company. Notwithstanding the foregoing, the Company shall not be required to pay for any
expenses of any registration proceeding begun pursuant to Sections 1.2 or 1.4 if the registration request is subsequently withdrawn at the request of the Holders of a majority of the Registrable Securities to be registered (in which case all
participating Holders shall bear such expenses pro rata based upon the number of Registrable Securities that were to be registered in the withdrawn registration). All expenses incurred in connection with a registration requested pursuant to
Section 1.4 (except for such expenses to be borne by the Company for up to two (2) Form S-3 registrations in accordance with the first sentence of this Section 1.7), including (without limitation) all registration, filing,
qualification fees, printer’s and accounting fees and the reasonable documents fees and expenses of counsel for the selling Holder or Holders and counsel for the Company, shall be borne pro rata by the Holder or Holders participating in the
Form S-3 Registration. 
  
 1.8 Delay of Registration. No
Holder shall have any right to obtain or seek an injunction restraining or otherwise delaying any such registration as the result of any controversy that might arise with respect to the interpretation or implementation of this Section 1.

  
 1.9 Indemnification. In the event any Registrable
Securities are included in a registration statement under this Section 1: 
  
 (a) To the extent permitted by law, the Company will indemnify and hold harmless each Holder, the partners or officers, directors and shareholders of each Holder, legal counsel and accountants for each Holder, any
underwriter (as defined in the Act) for such Holder and each person, if any, who controls such Holder or underwriter within the meaning of the Act or the 1934 Act, against any losses, claims, damages or liabilities (joint or several) to which they
may become subject under the Act, the 1934 Act or any state securities laws, insofar as such losses, claims, damages, or liabilities (or actions in respect thereof) arise out of or are based upon any of the following statements, omissions or
violations (each, a “Violation”): (i) any untrue statement or alleged untrue statement of a material fact contained in such registration statement, including any preliminary prospectus or final prospectus contained therein or
any amendments or supplements thereto, (ii) the omission or alleged omission to state therein a material fact required to be stated therein, or necessary to make the statements therein not misleading, or (iii) any violation or alleged
violation by the Company of the Act, the 1934 Act, any state securities laws or any rule or regulation promulgated under the Act, the 1934 Act or any state securities laws; and the Company will reimburse each such Holder, the partners or officers,
directors and 
  

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 shareholders of each Holder, legal counsel and accountants for each Holder, any such underwriter or controlling person
for any legal or other expenses reasonably incurred by them in connection with investigating or defending any such loss, claim, damage, liability or action; provided, however, that the indemnity agreement contained in this subsection l.9(a) shall
not apply to amounts paid in settlement of any such loss, claim, damage, liability or action if such settlement is effected without the written consent of the Company, nor shall the Company be liable in any such case for any such loss, claim,
damage, liability or action to the extent that it arises out of or is based upon a Violation that occurs in reliance upon and in conformity with information furnished for use in connection with such registration by any such Holder, underwriter or
controlling person; provided further, however, that the foregoing indemnity agreement with respect to any preliminary prospectus shall not inure to the benefit of any Holder or underwriter, or any person controlling such Holder or underwriter, from
whom the person asserting any such losses, claims, damages or liabilities purchased shares in the offering, if a copy of the prospectus (as then amended or supplemented) was not sent or given by or on behalf of such Holder or underwriter to such
person at or prior to the written confirmation of the sale of the shares to such person, and if the prospectus (as so amended or supplemented) would have cured the defect giving rise to such loss, claim, damage or liability. 
  
 (b) To the extent permitted by law, each selling Holder, on a joint and
several basis, will indemnify and hold harmless the Company, each of its directors, each of its officers who has signed the registration statement, each person, if any, who controls the Company within the meaning of the Act, legal counsel and
accountants for the Company, any underwriter (as defined in the Act) or any controlling person of any such underwriter, against any losses, claims, damages or liabilities (joint or several) to which any of the foregoing persons may become subject,
under the Act, the 1934 Act or any state securities laws, insofar as such losses, claims, damages or liabilities (or actions in respect thereto) arise out of or are based upon any Violation, in each case to the extent (and only to the extent) that
such Violation occurs in reliance upon and in conformity with information furnished by such Holder for use in connection with such registration; and each such Holder will reimburse any person intended to be indemnified pursuant to this subsection
l.9(b), for any legal or other expenses reasonably incurred by such person in connection with investigating or defending any such loss, claim, damage, liability or action; provided, however, that the indemnity agreement contained in this subsection
l.9(b) shall not apply to amounts paid in settlement of any such loss, claim, damage, liability or action if such settlement is effected without the consent of the Holder. 
  
 (c) Promptly after receipt by an indemnified party under this Section 1.9 of notice of the commencement of any action
(including any governmental action), such indemnified party will, if a claim in respect thereof is to be made against any indemnifying party under this Section 1.9, deliver to the indemnifying party a written notice of the commencement thereof
and the indemnifying party shall have the right to participate in, and, to the extent the indemnifying party so desires, jointly with any other indemnifying party similarly noticed, to assume the defense thereof with counsel mutually satisfactory to
the parties; provided, however, that an indemnified party (together with all other indemnified parties that may be represented without conflict by one counsel) shall have the right to retain one separate counsel, with the fees and expenses to be
paid by the indemnifying party, if representation of such indemnified party by the counsel retained by the indemnifying party would be inappropriate due to actual or potential differing interests between such indemnified party and any other party
represented by such counsel in such 
  

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 proceeding. The failure to deliver written notice to the indemnifying party within a reasonable time of the commencement
of any such action, if prejudicial to its ability to defend such action, shall relieve such indemnifying party of any liability to the indemnified party under this Section 1.9, but the omission so to deliver written notice to the indemnifying
party will not relieve it of any liability that it may have to any indemnified party otherwise than under this Section 1.9. 
  
 (d) If the indemnification provided for in this Section 1.9 is held by a court of competent jurisdiction to be unavailable to an indemnified party
with respect to any loss, liability, claim, damage or expense referred to herein, then the indemnifying party, in lieu of indemnifying such indemnified party hereunder, shall contribute to the amount paid or payable by such indemnified party as a
result of such loss, liability, claim, damage or expense in such proportion as is appropriate to reflect the relative fault of the indemnifying party on the one hand and of the indemnified party on the other in connection with the statements or
omissions that resulted in such loss, liability, claim, damage or expense, as well as any other relevant equitable considerations, provided that no person guilty of fraud shall be entitled to contribution. The relative fault of the indemnifying
party and of the indemnified party shall be determined by reference to, among other things, whether the untrue or alleged untrue statement of a material fact or the omission to state a material fact relates to information supplied by the
indemnifying party or by the indemnified party and the parties’ relative intent, knowledge, access to information, and opportunity to correct or prevent such statement or omission. In no event shall any contribution under this subsection 1.9(d)
exceed (A) in the case of any Holder, the gross proceeds from the offering received by such Holder, less any amounts paid under subsection 1.9(b) or (B) in the case of the Company, the gross proceeds from the offering received by the
Company, less any amounts paid under subsection 1.9(a), in each case with respect to the same claim for indemnification. 
  
 (e) Notwithstanding the foregoing, to the extent that the provisions on indemnification and contribution contained in the underwriting agreement entered
into in connection with the underwritten public offering are in conflict with the foregoing provisions, the provisions in the underwriting agreement shall control. 
  
 (f) The obligations of the Company and Holders under this Section 1.9 shall survive the completion of any offering of
Registrable Securities in a registration statement under this Section 1, and otherwise. 
  
 1.10 Reports Under Securities Exchange Act of 1934. With a view to making available to the Holders the benefits of Rule 144 promulgated under the Act and any other rule or regulation of the SEC that may at any
time permit a Holder to sell securities of the Company to the public without registration or pursuant to a registration on Form S-3, the Company agrees to: 
  
 (a) make and keep public information available, as those terms are understood and defined in SEC Rule 144, after ninety (90) days after the effective
date of the Initial Offering; and 
  
 (b) file with the SEC in a
timely manner all reports and other documents required of the Company under the Act and the 1934 Act. 
  

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 1.11 Assignment of Registration Rights. The rights to cause the Company to register Registrable
Securities pursuant to this Section 1 may be assigned (but only with all related obligations) by a Holder to a transferee or assignee of such securities that (i) is a subsidiary, parent, partner, limited partner, retired partner or
shareholder of a Holder, or (ii) is acquiring at least one hundred thousand (100,000) shares of Registrable Securities (subject to appropriate adjustment for stock splits, stock dividends, combinations and other recapitalizations) from the
Holder, provided: (a) the Company is, within a reasonable time prior to such transfer, furnished with written notice of the name and address of such transferee or assignee and the securities with respect to which such registration rights are
being assigned; (b) such transferee or assignee agrees in writing, in form and substance satisfactory to the Company, to be bound by and subject to the terms and conditions of this Agreement, including without limitation the provisions of
Section 1.13 below; and (c) such assignment shall be effective only if immediately following such transfer the further disposition of such securities by the transferee or assignee is restricted under the Act. For the purposes of
determining the number of shares of Registrable Securities held by a transferee or assignee, the holdings of transferees and assignees of a partnership who are partners or retired partners of such partnership shall be aggregated together and with
the partnership. 
  
 1.12 “Market Stand-Off”
Agreement. Each Holder hereby agrees that it will not, without the prior written consent of the managing underwriter, during the period commencing on the date of the final prospectus relating to the Company’s initial public offering and
ending on the date specified by the Company and the managing underwriter (which shall not be less than one hundred eighty (180) days after the date of the final prospectus, unless the Company and the managing underwriter agree to a shorter
period) (i) lend, offer, pledge, sell, contract to sell, sell any option or contract to purchase, purchase any option or contract to sell, grant any option, right or warrant to purchase, or otherwise transfer or dispose of, directly or
indirectly, any shares of Common Stock or any securities convertible into or exercisable or exchangeable for Common Stock (whether such shares or any such securities are then owned by the Holder or are thereafter acquired), or (ii) enter into
any swap or other arrangement that transfers to another, in whole or in part, any of the economic consequences of ownership of the Common Stock, whether any such transaction described in clause (i) or (ii) above is to be settled by
delivery of Common Stock or such other securities, in cash or otherwise. The underwriters in connection with the Company’s initial public offering are intended third party beneficiaries of this Section 1.12 and shall have the right, power
and authority to enforce the provisions hereof as though they were a party hereto. In order to enforce the foregoing covenant, the Company may impose stop-transfer instructions with respect to the Registrable Securities of each Holder (and the
shares or securities of every other person subject to the foregoing restriction) until the end of such period. 
  
 1.13 Termination of Registration Rights. No Holder shall be entitled to exercise any right provided for in this Section 1 after three
(3) years following the consummation of the Initial Offering (except that the piggyback right provided for in Section 1.3 shall expire in accordance with the terms of Section 1.3), nor, as to any Holder, such earlier time at which all
Registrable Securities held by such Holder (and any affiliate of the Holder with whom such Holder must aggregate its sales under Rule 144) can be sold in any three (3)-month period without registration in compliance with Rule 144 of the Act.

  

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 2. Miscellaneous. 
  
 2.1 Successors and Assigns. Except as otherwise provided herein, the terms and conditions of this Agreement shall inure to the benefit of and be
binding upon the respective successors and assigns of the parties (including transferees of any shares of Registrable Securities). Nothing in this Agreement, express or implied, is intended to confer upon any party other than the parties hereto or
their respective successors and assigns any rights, remedies, obligations, or liabilities under or by reason of this Agreement, except as expressly provided in this Agreement. 
  
 2.2 Governing Law. This Agreement shall be governed by and construed under the laws of the State of California as
applied to agreements among California residents entered into and to be performed entirely within California, without giving effect to any choice-of-law or conflicts-of-laws rule or principle that would result in the application of any other laws.

  
 2.3 Counterparts. This Agreement may be executed in two
or more counterparts (including facsimile versions), each of which shall be deemed an original, but all of which together shall constitute one and the same instrument. 
  
 2.4 Titles and Subtitles. The titles and subtitles used in this Agreement are used for convenience only and are not
to be considered in construing or interpreting this Agreement. 
  
 2.5 Notices. Any notice required or permitted by any provision of this Agreement shall be given in writing and shall be delivered personally or by courier, or by registered or certified mail, postage prepaid, addressed (i) in
the case of a Holder to such Holder’s address as set forth in the signature pages hereto or such other address as such Holder may designate in writing from time to time, (ii) in the case of the Company, to its principal office, and
(iii) in the case of any permitted transferee of a party to this Agreement or its transferee, to such transferee at its address as designated in writing by such transferee to the Company from time to time. Notices that are mailed shall
be deemed received upon the date of delivery entered on the return receipt. Notices sent by courier or overnight delivery shall be deemed received two (2) days after they have been so sent. Notices delivered personally shall be deemed
received upon delivery. 
  
 2.6 Expenses. Should any party
to this Agreement reasonably retain counsel for the purpose of enforcing any provision of this Agreement, including without limitation the institution of any action or proceeding to enforce any provision of this Agreement, or to recover damages if
otherwise available hereunder, or to obtain injunctive or other relief by reason of any alleged breach of any provision of this Agreement, or for a declaration based on a demonstrated necessity of such party’s rights or obligations under this
Agreement, or for any other judicial or equitable remedy, then if the matter is settled by judicial or quasi-judicial determination (including arbitration, if such arbitration is agreed to by the parties), the prevailing party or parties shall be
entitled, in addition to such other relief as may be granted, to be reimbursed by the losing party for all reasonable costs and expenses incurred, including without limitation all reasonable attorneys’ fees and costs for services rendered to
the prevailing party or parties and any reasonable attorneys’ fees and costs incurred in enforcing any judgment or order entered. The prevailing party or parties shall be determined by the court (or arbitrator, if arbitration is agreed to by
the parties) in the initial or any subsequent proceeding. 
  

 11 

 2.7 Entire Agreement: Amendments and Waivers. This Agreement and the documents referred to herein
(including the Exhibits hereto, if any) constitute the full and entire understanding and agreement among the parties with regard to the subjects hereof and thereof and supersede any prior or contemporaneous agreement (including without limitation
any provision of the Series A Subscription Agreements and/or Series B Subscription Agreements entered into by the Company and each Series A Preferred Holder and/or Series B Preferred Holder with respect to the subject matter hereof). Any term of
this Agreement may be amended and the observance of any term of this Agreement may be waived (either generally or in a particular instance and either retroactively or prospectively), only with the written consent of the Company and the holders of a
majority of the Registrable Securities; and, provided further, that (i) no amendment or waiver which adversely affects the holders of Series A Registrable Securities shall be effected without the prior written consent of the holders of a
majority in interest of such Series A Registrable Securities, and (ii) no amendment or waiver which adversely affects the holders of Series B Registrable Securities shall be effected without the prior written consent of the holders of a
majority in interest of such Series B Registrable Securities. Any amendment or waiver effected in accordance with this paragraph shall be binding upon each holder of any Registrable Securities each future holder of all such Registrable Securities,
and the Company. 
  
 2.8 Severability. If one or more
provisions of this Agreement are held to be unenforceable under applicable law, such provision shall be excluded from this Agreement and the balance of the Agreement shall be interpreted as if such provision were so excluded and shall be enforceable
in accordance with its terms. 
  
 [Remainder of Page
Intentionally Left Blank] 
  

 12 

 IN WITNESS WHEREOF, the parties have executed this Agreement as of the date first above written.

  

			
	“COMPANY”
	
	 Basin Water, Inc.,
 a California
corporation

		
	By:	 	 /s/    PETER L. JENSEN

	Name:	 	Peter L. Jensen
	Title:	 	President

  
 Investors signatures appear
on the following pages 
  

 S-1 

			
		
	 	 	        Investor
		
	 Signature:
	 	  

		
	 Print Name:
	 	  

	 (exactly as it appears on your stock certificate)

		
	 Address:
	 	  

		
	 	 	  

		
	 	 	  

		
	 	 	  

	
	 Number of Series A Preferred Shares:
                    

	
	 Number of Series B Preferred Shares:
                    

  

 2 

 SCHEDULE A 
  

INVESTORS 
  

			
		
	 Shareholder

	  	 Number of Shares Owned

	 Adler, Louis
 910 Travis St., Ste. 1950
 Houston, TX 77992
	  	 6,250 (Series A)
 12,500 (Series B)

		
	 Ain, Ross
 3512 Newark St. NW
 Washington, D.C. 20016
	  	 6,250 (Series A)
 6,000 (Series B)

		
	 Anderson, Douglas
 1847 Cassamia Place
 Charlotte, NC 28211
	  	 25,000 (Series B)

		
	 Balanced Investment
 Palmas 1715 Lomas de Capultepec
 Mexico City, D.F. 11000
	  	 50,000 (Series A)

		
	 Berkowitz, David
 107 Colt Road
 Summit, NJ 07101
	  	 18,000 (Series B)

		
	 Bershad, David
 2 Stonebridge Rd.
 Montclair, NJ 07042
	  	 25,000 (Series A)

		
	 Bryson, Antonia
 321 West 78th St., Apt. 4B
 New York, NY 10024
	  	 6,250 (Series A)

		
	 Buchanan, William
 Smith Ridge Lane
 New Canaan, CT 06840
	  	 6,250 (Series B)

		
	 Buros, Peter
 6677 Busch Boulevard
 Columbus, OH 43226-0036
	  	 10,000 (Series B)

		
	 BWCA I, LLC
 c/o Oscar Tang
 600 5th Avenue, 8th Floor
 New York, NY
10020
	  	 717,450 (Common Warrants)

		
	 Campbell, Doyle and Jean
 2440 N.E. 22 Terrace
 Fort Lauderdale, FL 33305
	  	 12,500 (Series B)

			
		
	 Shareholder

	  	 Number of Shares Owned

	 Catalyst Basin Water, LLC
 c/o Michael Mikolajczyk
 875 N. Michigan Avenue, Suite 2800
 Chicago, IL 60611
	  	 100,000 (Common Warrants)

		
	 Christakos, Basil
	  	 3,000 (Series B Warrants)

		
	 The Co-Investment 2000 Fund, LP
 c/o Richard M. Fox
 Five Radnor Corporate Center
 100 Matsonford Road, Suite 555
 Radnor, PA 19087
	  	 450,000 (Common Warrants)

		
	 Coleman, Roger and Margaret JT TEN
 15 The Ridge
 Plancome, NY 11030
	  	 12,500 (Series B)

		
	 Cox, Archibald
 6211 S. 450 E.
 Markeville, IN 10021
	  	 50,000 (Series A)
 25,000 (Series B)

		
	 Crilly Court Trust
	  	 7,000 (Series B)

		
	 Cross-Atlantic Technology Fund II, LP
 c/o Richard M. Fox
 Five Radnor Corporate Center
 100 Matsonford Road, Suite 555
 Radnor, PA 19087
	  	 450,000 (Common Warrants)

		
	 Crowell, R. Parker Crowell
 CGM IRA Custodian
 c/o Solomon Smith Barney
 One Fawcett Pl.
 Greenwich, CT 06830
	  	 25,000 (Series B)

		
	 DBD Investments, LLC
 Dean Littlewood
 2 Harrison Street #158
 San Francisco, CA 94105
	  	 12,500 (Series B)

		
	 De Ochoa, Nancy Villarreal
 Buro Internacional
 Plaza Internacional CEDETEL- Piso 3
 Ave. Gomez Morin 350 Sur
 Garza Garcia N.L. Mexico 66265
	  	 5,625 (Series B)

  

 -2- 

			
		
	 Shareholder

	  	 Number of Shares Owned

	 De Ramirez, Elke
 972 North St.
 Greenwich, CT 06831
	  	 5,000 (Series A)

		
	 Delafield, J. Dennis
 Delafield Asset Management
 600 Fifth Avenue
 New York, NY 10020-2302
	  	 12,500 (Series B)

		
	 Delafield, JoAnn S. TTEE
 c/o Mr. J. Dennis Delafield
 Delafield Asset Management
 600 Fifth Avenue
 New York, NY 10020-2302
	  	 12,500 (Series B)

		
	 Dewey, Thomas E. Jr.
 79 E. 79th St.
 New York, NY 10021
	  	 12,500 (Series A)
 12,500 (Series B)

		
	 Dickinson, Wright
 3409 East St. Andrews Way
 Seattle, WA 98112
	  	 12,500 (Series A)

		
	 Einstein, Arthur
 377 Mt. Holly Rd.
 Katonah, NY 10536
	  	 6,250 (Series B)

		
	 Einstein, Arthur W. – IRA Acct. No. 252385
 377 Mt. Holly Rd.
 Katonah, NY 10536
	  	 6,250 (Series A)

		
	 Ferguson, Robert H. M.
 P.O. Box 433
 Katonah, NY 10536
	  	 12,500 (Series B)

		
	 Florin, Marc IRA
 Mr. Marc Florin
 Albert Fried 7 Company, LLC
 60 Broad Street, 39th Floor
 New York, NY 10004
	  	 37,500 (Series B)

		
	 Forrester, Andrew
 375 Mt. Holly Rd.
 Katonah, NY 10536
	  	 12,500 (Series B)

  

 -3- 

			
	 Shareholder

	  	 Number of Shares Owned

	 Forrester, Robert and Linda
 143 Deercliff
Road
 Avon, CT 06001
	  	 12,500 (Series B)
 50,000 (Series B) (Robert)

		
	 Fried, Albert
 Albert Fried & Company
LLC
 60 Broad Street, 39th Floor
 New York, NY
10004
	  	 275,000 (Series B)

		
	 Fried, Christina
 Albert Fried & Company
LLC
 60 Broad St., 39th Floor
 New York, NY 10004
	  	 125,000 (Series B)

		
	 Fryling,Gregory
 29802 Highview Cir.
 San Juan Capistrano,CA 92695
	  	 45,000 (Series B)

		
	 Fryling, Victor
 4369 Ramble Hills
 Farmington Hills, MI 48331
	  	 140,000 (Series B)

		
	 Gantz, Michael
 11 Burnham Hill
 Westport, CT 06880-6607
	  	 18,750 (Series B)

		
	 Garcia, Stephen
 700 Hunter
 Glenview, IL 60025
	  	 18,750 (Series B)

		
	 Goodchild, Judith
 195 Palmer Hill Rd.
 Old Greenwich, CT 06870
	  	 15,000 (Series B)

		
	 Hedley Family Limited Partnership
 Dr. Anthony K. Hedley
 c/o Institute for Bone & Joint Disorders
 222 E. Highland Avenue, Ste.400
 Phoenix, AZ 85016-4880
	  	 25,000 (Series A)

		
	 Dr. Anthony K. Hedley
 c/o Institute for
Bone & Joint Disorders
 222 E. Highland Avenue, Ste. 400
 Phoenix, AZ 85016-4880
	  	 50,000 (Series B)

		
	 The Jack Sydney Hudson 2004 Trust
 c/o Thomas and
Gabrielle Hudson
 84 Charter Oak Drive
 Wilton, CT
06854
	  	 25,000 (Series B)

  

 -4- 

			
		
	 Shareholder

	  	 Number of Shares Owned

	 Kathy Jones
 Daniel Jones
 445 East 86th Street, #7-H

New York, NY 10028
	  	25,000 (Series B)
		
	 JG/JM Capital, LP
 c/o Mr. James G.
O’Brien
 44 Old Nursery Drive
 Winton, CT
06897
	  	12,500 (Series B)
		
	 Kane, Patrick
 La Parvada 1005
 Garza Garcia, N.L.Mexico 66220
	  	6,250 (Series A)
		
	 Katsingris, Anthony
 c/o Albert Fried & Company
LLC
 60 Broad Street, 39th Floor
 NewYork, NY
10004
	  	5,000 (Series B)
		
	Katzmann, Scott	  	 11,138 (Series A Warrants)
 15,462 (Series B
Warrants)

		
	 Dr. Tis Prager, Chairman
 Keys Foundation

Prager Dreifuss
 Mühlebachstrasse 6
 CH-8008 Zurich, Switzerland
	  	 125,000 (Series A)
 125,000 (Series
B)

		
	 Klein, Martin
 2424 N. Atlantic Blvd.
 Fort Lauderdale, FL 33305
	  	 6,250 (Series A)
 12,500 (Series B)

		
	 D.Stuart Laughlin
 25 Crescent Street, Apt.
127
 Waltham, MA 02453
	  	25,000 (Series B)
		
	 Wayne and Hope Leizear
 40 Willowmere Circle

Riverside,CT06878
	  	25,000 (Series B)
		
	 Littlewood, Dean
 Littlewood Financial Group

Hills Plaza
 2 Harrison Street, #158
 San Francisco, CA 94105
	  	12,500 (Series B)
		
	 Macinnis, Frank
 7 Sturges Hollow
 Westport, CT 06880
	  	12,500 (Series B)

  

 -5- 

			
	 Shareholder

	  	 Number of Shares Owned

	 Manganello, Joseph A.
 c/o Cove Harbor Partners,
LLC
 1 Dock Street, Ste. 400
 Stamford, CT 06902
	  	 12,500 (Series B)

		
	 Massie, Andrew
 947 Green St., #2
 San Francisco, CA 94133
	  	 18,750 (Series A)
 12,500 (Series B)

		
	 Massie, David and Karla
 23 Cosso Court
 Lafayette, CA 94549
	  	 12,500 (Series B)

		
	 Mayer, John
 7 Upland Drive
 Greenwich, CT 06831
	  	 25,000 (Series B)

		
	 McCalley, Stuart and Susan
 17 Carriglea Drive

Riverside, CT 06878
	  	 12,500 (Series A)
 12,500 (Series B)

		
	 Mega International
 c/o Jeana Somers
 Paramount Capital Inc.
 787 Seventh Ave., 48th Flr.
 New York, NY 10019
	  	 10,000 (Series A)

		
	 Milgrim, Roger
 UBS Financial Services
 FBO Roger Milgrim IRA
 Paul Hastings Janofsky & Walker LLP

75 East 55th Street
 NewYork, NY 10022-3205
	  	 12,500 (Series A)

		
	 Milgrim, Patricia–Salomon Smith
 Barney Custodian
FBO
 Patricia Conway Milgrim IRA
 Paul Hastings
Janofsky & Walker LLP
 75 East 55th Street
 New York, NY
10022-3205
	  	 12,500 (Series A)

		
	 Moeling, John
 1 Seabreeze Pl.
 Norwalk, CT 06854-4711
	  	 6,250 (Series A)

		
	 Nagle, Arthur
 19 Garden Venue, Ste.1950
 Bronxville, NY 10708
	  	 6,250 (Series B)

  

 -6- 

			
	 Shareholder

	  	 Number of Shares Owned

	 Newman, Kevin P.
 Sherry Lane
 Darien, CT 06820
	  	 37,500 (Series B)

		
	 Norton, A Laurence and Katherine
 145 East 92nd Street,
Apt. 3A
 New York, NY 10128
	  	 15,000 (Series B)

		
	 Osterweis, John
 Trustee for the Osterweis
Revocable
 Trust U/A 9/13/93
 One Maritime Plaza, Ste.
800
 San Francisco, CA 94111
	  	 31,250 (Series A)
 18,750 (Series B)

		
	 Pasquel, Mario and Begona Miranda
 Palmas 800-Dep
to.2401
 Lomas De Chapultepec
 11000 Mexico, D.F.
	  	 6,250 (Series B)

		
	 Dr. Tis Prager, Chairman
 Keys Foundation

Prager Dreifuss
 Mühlebachstrasse 6
 CH-8008 Zurich, Switzerland
	  	 18,750 (Series A)
 25,000 (Series B)

		
	 Read, James
 c/o Mezzanine Management
 333 Ludlow St.
 Stamford,CT06902
	  	 12,500 (Series B)

		
	Rocamboli, Steven	  	 2,353 (Series A Warrants)
 1,943 (Series B Warrants)

		
	 Rolls, John
 4 Frog Rock Rd.
 Armonk, NY 10504
	  	 25,000 (Series B)

		
	 Romanaux, Daniel
 30 Walker Dr.
 Princeton, NJ 08540
	  	 6,250 (Series A)

		
	 Rosewald, Lindsay
	  	 12,550 (Series A Warrants)
 15,697 (Series B Warants)

  

 -7- 

			
	 Shareholder

	  	 Number of Shares Owned

	Ruggeberg, Karl	  	 1,412 (Series A Warrants)
 235 (Series B Warrants)

		
	 Small, Sherwood
 1030 Briar Hill Road
 Contoocoock, NH 03229
	  	 37,500 (Series B)

		
	 Snyder, Jim
 1215 4th Avenue, Ste.2400
 Seattle,WA98161
	  	 37,500 (Series B)

		
	 Steckel, Willard–First Clearing LLC
 C/F Willard P.
Steckel
 10700 Wheat First Drive
 Glen Allen, VA
23060
	  	 6,250 (Series A)

		
	 Stevenson, Matthew
 18 Ruedela Maison-Forte
 Lacmnex, Switzerland 1287
	  	 12,500 (Series A)
 12,500 (Series B)

		
	 Tamagni, John
 C/O Lazard Freres &
COLLC
 30 Rockefeller Center, 19th Floor
 New York, NY
10020
	  	 6,250 (Series A)
 18,750 (Series B)

		
	Tanen, David	  	 2,353 (Series A Warrants)
 1,943 (Series B Warrants)

		
	 Teitelbaum, Myron
 57 Pembroke Dr.
 Glen Cove, NY 11542-1790
	  	 6,250 (Series A)

		
	 Teitell, Adele and Conrad
 16 Marlow Ct.
 Riverside,CT 06878
	  	 12,500 (Series B)

		
	 Thorne, Frederick
 20 Oak St.
 Beverly Farms, MA 01915
	  	 12,500 (Series B)

		
	 Trust FBO Andrew B. Watt
 30 Walker Dr.
 Princeton, NJ 08540
	  	 6,250 (Series A)

  

 -8- 

			
	 Shareholder

	  	 Number of Shares Owned

	 Vanderbes, Romano
 231 Palmer Hill Road
 Old Greenwich, CT 06870
	  	 5,000 (Series B)

		
	Vogler, Hannah	  	 1,569 (Series A Warrants)
 1,963.75 (Series B Warrants)

		
	 Watt, Karen
 16 Gilliam Lane
 Riverside, CT 06878
	  	 6,250 (Series B)

		
	 Watt, William
 Sccot Financial Group
 1 Dock Street., Ste. 400
 Stamford CT 06902
	  	 12,500 (Series A)
 31,375 (Series A Warrants)
 39,243.75 (Series B Warrants)

		
	 Weiss, Melvyn
 One Penn Plaza, 49th Flr.
 NewYork, NY 10119
	  	 25,000 (Series A)

		
	 Whittlesey, Linda
 1560 Main St.
 West Barnstable, MA 02668
	  	 6,250 (Series B)

		
	 Whittlesey, Stephen
 1560 Main St.
 West Barnstable, MA 02668
	  	 12,500 (Series A)
 12,500 (Series B)

		
	 Widmer, Bruno
 Krahbühlstrasse 16
 CH-8044
 Zurich, Switzerland
	  	 12,500 (Series A)
 6,250 (Series B)

		
	 Wilson, Marcia
 Parkshore Towers, Apt.5B
 4251 Gulfshore Blvd. North
 Naples, FL 34103
	  	 6,250 (Series A)
 18,750 (Series B)

		
	 Zand, Janet
 1600 Rockcliff Rd.
 Austin, TX 78746
	  	 50,000 (Series A)

  

 -9-

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