The Securities and Exchange Commission has not necessarily reviewed the information in this filing and has not determined if it is accurate and complete.
The reader should not assume that the information is accurate and complete.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 13F

FORM 13F INFORMATION TABLE
OMB APPROVAL
OMB Number: 3235-0006
Estimated average burden
hours per response: 23.8
COLUMN 1 COLUMN 2 COLUMN 3 COLUMN 4 COLUMN 5 COLUMN 6 COLUMN 7 COLUMN 8
VALUE SHRS OR SH/ PUT/ INVESTMENT OTHER VOTING AUTHORITY
NAME OF ISSUER TITLE OF CLASS CUSIP FIGI (to the nearest dollar) PRN AMT PRN CALL DISCRETION MANAGER SOLE SHARED NONE
3M CO COM 88579Y101   407,325 2,322 SH   SOLE   2,322 0 0
ACCENTURE PLC IRELAND SHS CLASS A G1151C101   281,530 880 SH   SOLE   880 0 0
ADOBE SYSTEMS INCORPORATED COM 00724F101   3,614,370 6,278 SH   SOLE   6,278 0 0
ALPHABET INC CAP STK CL A 02079K305   19,599,575 7,331 SH   SOLE   7,331 0 0
ALPHABET INC CAP STK CL C 02079K107   940,854 353 SH   SOLE   353 0 0
AMAZON COM INC COM 023135106   2,253,537 686 SH   SOLE   686 0 0
AMER STATES WTR CO COM 029899101   3,903,646 45,646 SH   SOLE   45,646 0 0
ANALOG DEVICES INC COM 032654105   492,391 2,940 SH   SOLE   2,940 0 0
APPLE INC COM 037833100   16,384,710 115,793 SH   SOLE   115,793 0 0
AUTOMATIC DATA PROCESSING IN COM 053015103   13,259,694 66,325 SH   SOLE   66,325 0 0
BADGER METER INC COM 056525108   3,861,323 38,178 SH   SOLE   38,178 0 0
BERKSHIRE HATHAWAY INC DEL CL A 084670108   6,582,064 412 SH   SOLE   412 0 0
BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702   1,095,581 4,014 SH   SOLE   4,014 0 0
BLACKROCK MUNIVEST FD INC COM 09253R105   423,868 44,759 SH   SOLE   44,759 0 0
BLACKROCK MUNIYIELD QUALITY COM 09254G108   1,231,266 85,564 SH   SOLE   85,564 0 0
BOSTON SCIENTIFIC CORP COM 101137107   12,011,480 276,826 SH   SOLE   276,826 0 0
BROOKFIELD RENEWABLE CORP CL A SUB VTG 11284V105   10,653,578 274,506 SH   SOLE   274,506 0 0
BROOKFIELD RENEWABLE PARTNER PARTNERSHIP UNIT G16258108   342,340 9,275 SH   SOLE   9,275 0 0
CALIFORNIA WTR SVC GROUP COM 130788102   3,855,436 65,424 SH   SOLE   65,424 0 0
CANADIAN NATL RY CO COM 136375102   10,629,623 91,912 SH   SOLE   91,912 0 0
CIGNA CORP NEW COM 125523100   385,108 1,924 SH   SOLE   1,924 0 0
CISCO SYS INC COM 17275R102   869,519 15,975 SH   SOLE   15,975 0 0
COSTCO WHSL CORP NEW COM 22160K105   13,422,085 29,870 SH   SOLE   29,870 0 0
CVS HEALTH CORP COM 126650100   332,991 3,924 SH   SOLE   3,924 0 0
DANAHER CORPORATION COM 235851102   545,556 1,792 SH   SOLE   1,792 0 0
DATADOG INC CL A COM 23804L103   4,240,500 30,000 SH   SOLE   30,000 0 0
DIGITAL RLTY TR INC COM 253868103   7,426,319 51,411 SH   SOLE   51,411 0 0
EASTERN BANKSHARES INC COM 27627N105   3,928,212 193,508 SH   SOLE   193,508 0 0
ETSY INC COM 29786A106   1,574,049 7,569 SH   SOLE   7,569 0 0
FEDEX CORP COM 31428X106   6,892,285 31,430 SH   SOLE   31,430 0 0
GENERAL MLS INC COM 370334104   305,082 5,100 SH   SOLE   5,100 0 0
GRAINGER W W INC COM 384802104   401,314 1,021 SH   SOLE   1,021 0 0
HANNON ARMSTRONG SUST INFR C COM 41068X100   6,220,526 116,315 SH   SOLE   116,315 0 0
HOME DEPOT INC COM 437076102   10,312,288 31,415 SH   SOLE   31,415 0 0
IDEX CORP COM 45167R104   8,124,236 39,257 SH   SOLE   39,257 0 0
IDEXX LABS INC COM 45168D104   12,715,367 20,446 SH   SOLE   20,446 0 0
ILLINOIS TOOL WKS INC COM 452308109   471,530 2,282 SH   SOLE   2,282 0 0
INTEL CORP COM 458140100   3,146,823 59,062 SH   SOLE   59,062 0 0
INTERNATIONAL BUSINESS MACHS COM 459200101   4,434,229 31,917 SH   SOLE   31,917 0 0
INTUIT COM 461202103   15,093,332 27,976 SH   SOLE   27,976 0 0
INVESCO ACTIVELY MANAGED ETF ULTRA SHRT DUR 46090A887   699,514 13,860 SH   SOLE   13,860 0 0
ISHARES INC ESG AWR MSCI EM 46434G863   547,008 13,200 SH   SOLE   13,200 0 0
ISHARES TR 1 3 YR TREAS BD 464287457   318,152 3,693 SH   SOLE   3,693 0 0
ISHARES TR BARCLAYS 7 10 YR 464287440   308,329 2,676 SH   SOLE   2,676 0 0
ISHARES TR CORE S&P MCP ETF 464287507   239,920 912 SH   SOLE   912 0 0
ISHARES TR IBOXX INV CP ETF 464287242   759,202 5,707 SH   SOLE   5,707 0 0
ISHARES TR MBS ETF 464288588   256,292 2,370 SH   SOLE   2,370 0 0
ISHARES TR S&P 100 ETF 464287101   609,695 3,088 SH   SOLE   3,088 0 0
ISHARES TR SHORT TREAS BD 464288679   259,273 2,347 SH   SOLE   2,347 0 0
JOHNSON & JOHNSON COM 478160104   2,636,972 16,328 SH   SOLE   16,328 0 0
KEMPER CORP COM 488401100   750,720 11,240 SH   SOLE   11,240 0 0
LINDE PLC SHS G5494J103   12,895,518 43,955 SH   SOLE   43,955 0 0
MCDONALDS CORP COM 580135101   906,574 3,760 SH   SOLE   3,760 0 0
MERCADOLIBRE INC COM 58733R102   1,380,467 822 SH   SOLE   822 0 0
MERCK & CO INC COM 58933Y105   372,846 4,964 SH   SOLE   4,964 0 0
MICROSOFT CORP COM 594918104   18,158,185 64,409 SH   SOLE   64,409 0 0
NOVO-NORDISK A S ADR 670100205   12,526,617 130,472 SH   SOLE   130,472 0 0
NVIDIA CORPORATION COM 67066G104   298,310 1,440 SH   SOLE   1,440 0 0
ORACLE CORP COM 68389X105   208,415 2,392 SH   SOLE   2,392 0 0
PAYPAL HLDGS INC COM 70450Y103   14,602,725 56,119 SH   SOLE   56,119 0 0
PEPSICO INC COM 713448108   626,608 4,166 SH   SOLE   4,166 0 0
PROCTER AND GAMBLE CO COM 742718109   708,786 5,070 SH   SOLE   5,070 0 0
SAFETY INS GROUP INC COM 78648T100   3,674,426 46,365 SH   SOLE   46,365 0 0
SALESFORCE COM INC COM 79466L302   13,172,884 48,569 SH   SOLE   48,569 0 0
SMITH A O CORP COM 831865209   7,434,906 121,744 SH   SOLE   121,744 0 0
SPDR S&P 500 ETF TR TR UNIT 78462F103   1,103,748 2,572 SH   SOLE   2,572 0 0
SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP 78467Y107   314,496 654 SH   SOLE   654 0 0
SQUARE INC CL A 852234103   7,853,081 32,743 SH   SOLE   32,743 0 0
STANLEY BLACK & DECKER INC COM 854502101   4,981,434 28,415 SH   SOLE   28,415 0 0
STRYKER CORPORATION COM 863667101   15,046,545 57,055 SH   SOLE   57,055 0 0
TELEDYNE TECHNOLOGIES INC COM 879360105   582,081 1,355 SH   SOLE   1,355 0 0
TESLA INC COM 88160R101   1,426,108 1,839 SH   SOLE   1,839 0 0
TILRAY INC COM CL 2 88688T100   1,617,518 143,270 SH   SOLE   143,270 0 0
TJX COS INC NEW COM 872540109   8,146,023 123,462 SH   SOLE   123,462 0 0
TWITTER INC COM 90184L102   367,473 6,085 SH   SOLE   6,085 0 0
UNILEVER PLC SPON ADR NEW 904767704   13,832,715 255,122 SH   SOLE   255,122 0 0
VANGUARD INDEX FDS S&P 500 ETF SHS 922908363   2,110,829 5,352 SH   SOLE   5,352 0 0
VANGUARD INDEX FDS SMALL CP ETF 922908751   320,133 1,464 SH   SOLE   1,464 0 0
VANGUARD INDEX FDS TOTAL STK MKT 922908769   286,235 1,289 SH   SOLE   1,289 0 0
WEC ENERGY GROUP INC COM 92939U106   661,765 7,503 SH   SOLE   7,503 0 0
XYLEM INC COM 98419M100   8,491,127 68,654 SH   SOLE   68,654 0 0
ZOOM VIDEO COMMUNICATIONS IN CL A 98980L101   4,080,185 15,603 SH   SOLE   15,603 0 0