Western Nassau County New York Water Authority Water System Revenue is a county in NY with $179.6M of municipal debt outstanding across 56 securities maturing through 2051. Its senior debt is rated A1 by Moody's and AA by S&P. It ranks larger than 93% of NY issuers by debt outstanding and has reported continuing disclosure to EMMA as recently as December 2025.
Compiled from MSRB EMMA & public records · read-only public record
Are you Western Nassau County New York Water Authority Water System Revenue? Claim this profile to publish a leadership letter, post updates to investors, and verify the public record.
Claim this profileOutstanding par—
Securities56
Avg coupon4.4%
Callable52%
Next call2025
Maturity profile
par maturing by yearCredit ratings
agency-statedMoody's
A1
53 rated securities
S&P
AA
1 rated security
Fitch
AA-
46 rated securities
KBRA
NR
Not rated
Debt overview
EMMA-derivedOutstanding par—
Securities56
Callable52%
Recent market activity
EMMA · trade-reportedTrade dateSecurityPriceYieldSizeSide
Dec 5
958792FL2
89.74
4.19%
15,000
Inter-Dealer Trade
Dec 5
958792EK5
107.59
2.60%
5,000
Inter-Dealer Trade
Dec 5
958792EK5
107.59
2.60%
5,000
Customer Bought
Dec 4
958792EB5
98.19
3.53%
55,000
Customer Sold
Dec 4
958792EB5
98.19
3.53%
55,000
Inter-Dealer Trade
Dec 3
958792EL3
109.97
2.55%
10,000
Customer Bought
Dec 3
958792EA7
98.78
3.53%
10,000
Inter-Dealer Trade
Trade prints reported to the MSRB — a live market signal a manual issuer page cannot show.
20 callable securities carry a stated call price — refunding candidates as rates move.
Outstanding securities
56| CUSIP | Series / description | Coupon | Maturity | Outstanding | Ratings | First call |
|---|---|---|---|---|---|---|
| 958792FF5 | WESTERN NASSAU CNTY N Y WTR AUTH WTR SYS REV BDS 2021… | 1.597% | April 1, 2027 | $425,000 | A1AA- | — |
| 958792EH2 | WESTERN NASSAU CNTY N Y WTR AUTH WTR SYS REV BDS 2021… | 5.0% | April 1, 2027 | $1,080,000 | A1AA- | — |
| 958792DS9 | WESTERN NASSAU CNTY N Y WTR AUTH WTR SYS REV REV BDS … | 3.0% | April 1, 2027 | $245,000 | A1AA- | April 1, 2025 |
| 958792CG6 | WESTERN NASSAU CNTY N Y WTR AUTH WTR SYS REV REV BDS … | 5.0% | April 1, 2027 | $1,895,000 | A1AA- | April 1, 2025 |
| 958792CH4 | WESTERN NASSAU CNTY N Y WTR AUTH WTR SYS REV REV BDS … | 5.0% | April 1, 2028 | $1,990,000 | A1AA- | April 1, 2025 |
| 958792EJ8 | WESTERN NASSAU CNTY N Y WTR AUTH WTR SYS REV BDS 2021… | 5.0% | April 1, 2028 | $1,130,000 | A1AA- | — |
| 958792FG3 | WESTERN NASSAU CNTY N Y WTR AUTH WTR SYS REV BDS 2021… | 1.697% | April 1, 2028 | $430,000 | A1AA- | — |
| 958792DT7 | WESTERN NASSAU CNTY N Y WTR AUTH WTR SYS REV REV BDS … | 3.0% | April 1, 2028 | $250,000 | A1AA- | April 1, 2025 |
| 958792EK5 | WESTERN NASSAU CNTY N Y WTR AUTH WTR SYS REV BDS 2021… | 5.0% | April 1, 2029 | $1,190,000 | A1AA- | — |
| 958792FH1 | WESTERN NASSAU CNTY N Y WTR AUTH WTR SYS REV BDS 2021… | 1.975% | April 1, 2029 | $440,000 | A1AA- | — |
| 958792CJ0 | WESTERN NASSAU CNTY N Y WTR AUTH WTR SYS REV REV BDS … | 3.0% | April 1, 2029 | $2,095,000 | A1AA- | April 1, 2025 |
| 958792DU4 | WESTERN NASSAU CNTY N Y WTR AUTH WTR SYS REV REV BDS … | 3.0% | April 1, 2029 | $255,000 | A1AA- | April 1, 2025 |
| 958792FJ7 | WESTERN NASSAU CNTY N Y WTR AUTH WTR SYS REV BDS 2021… | 2.075% | April 1, 2030 | $450,000 | A1AA- | — |
| 958792CK7 | WESTERN NASSAU CNTY N Y WTR AUTH WTR SYS REV REV BDS … | 5.0% | April 1, 2030 | $2,155,000 | A1AA- | April 1, 2025 |
| 958792DV2 | WESTERN NASSAU CNTY N Y WTR AUTH WTR SYS REV REV BDS … | 3.125% | April 1, 2030 | $265,000 | A1AA- | May 21, 2026 |
| 958792CE1 | WESTERN NASSAU CNTY N Y WTR AUTH WTR SYS REV REV BDS … | 6.451% | April 1, 2030 | $7,420,000 | A1AA- | — |
| 958792EL3 | WESTERN NASSAU CNTY N Y WTR AUTH WTR SYS REV BDS 2021… | 5.0% | April 1, 2030 | $1,250,000 | A1AA- | — |
| 958792BR3 | WTR SYS REV BDS 2005 | 5.0% | May 1, 2030 | $2,015,000 | — | — |
| 958792EM1 | WESTERN NASSAU CNTY N Y WTR AUTH WTR SYS REV BDS 2021… | 5.0% | April 1, 2031 | $1,310,000 | A1AA- | — |
| 958792DW0 | WESTERN NASSAU CNTY N Y WTR AUTH WTR SYS REV REV BDS … | 3.125% | April 1, 2031 | $275,000 | A1AA- | April 1, 2025 |
| 958792FK4 | WESTERN NASSAU CNTY N Y WTR AUTH WTR SYS REV BDS 2021… | 2.175% | April 1, 2031 | $2,725,000 | A1AA- | — |
| 958792CL5 | WESTERN NASSAU CNTY N Y WTR AUTH WTR SYS REV REV BDS … | 5.0% | April 1, 2031 | $2,270,000 | A1 | — |
| 958792EN9 | WESTERN NASSAU CNTY N Y WTR AUTH WTR SYS REV BDS 2021… | 5.0% | April 1, 2032 | $1,375,000 | A1AA- | April 1, 2031 |
| 958792FL2 | WESTERN NASSAU CNTY N Y WTR AUTH WTR SYS REV BDS 2021… | 2.325% | April 1, 2032 | $2,785,000 | A1AA- | — |
| 958792DX8 | WESTERN NASSAU CNTY N Y WTR AUTH WTR SYS REV REV BDS … | 3.25% | April 1, 2032 | $285,000 | A1AA- | April 1, 2025 |
| 958792CM3 | WESTERN NASSAU CNTY N Y WTR AUTH WTR SYS REV REV BDS … | 5.0% | April 1, 2032 | $2,380,000 | A1 | — |
| 958792DY6 | WESTERN NASSAU CNTY N Y WTR AUTH WTR SYS REV REV BDS … | 3.25% | April 1, 2033 | $295,000 | A1AA- | April 1, 2025 |
| 958792FM0 | WESTERN NASSAU CNTY N Y WTR AUTH WTR SYS REV BDS 2021… | 2.425% | April 1, 2033 | $350,000 | A1AA- | — |
| 958792EB5 | SER A-BAM-TCRS | 3.25% | April 1, 2033 | $1,000,000 | A1AA | April 1, 2025 |
| 958792CN1 | WESTERN NASSAU CNTY N Y WTR AUTH WTR SYS REV REV BDS … | 3.25% | April 1, 2033 | $2,505,000 | A1AA- | April 1, 2025 |
| 958792EP4 | WESTERN NASSAU CNTY N Y WTR AUTH WTR SYS REV BDS 2021… | 5.0% | April 1, 2033 | $1,445,000 | A1AA- | April 1, 2031 |
| 958792CP6 | WESTERN NASSAU CNTY N Y WTR AUTH WTR SYS REV REV BDS … | 5.0% | April 1, 2034 | $2,585,000 | A1 | — |
| 958792DZ3 | WESTERN NASSAU CNTY N Y WTR AUTH WTR SYS REV REV BDS … | 3.375% | April 1, 2034 | $305,000 | A1AA- | April 1, 2025 |
| 958792EQ2 | WESTERN NASSAU CNTY N Y WTR AUTH WTR SYS REV BDS 2021… | 4.0% | April 1, 2034 | $1,515,000 | A1AA- | April 1, 2031 |
| 958792FN8 | WESTERN NASSAU CNTY N Y WTR AUTH WTR SYS REV BDS 2021… | 2.5% | April 1, 2034 | $2,940,000 | A1AA- | — |
| 958792FP3 | WESTERN NASSAU CNTY N Y WTR AUTH WTR SYS REV BDS 2021… | 2.575% | April 1, 2035 | $3,030,000 | A1AA- | — |
| 958792CQ4 | WESTERN NASSAU CNTY N Y WTR AUTH WTR SYS REV REV BDS … | 5.0% | April 1, 2035 | $2,730,000 | A1 | — |
| 958792EA7 | WESTERN NASSAU CNTY N Y WTR AUTH WTR SYS REV REV BDS … | 3.375% | April 1, 2035 | $310,000 | A1AA- | April 1, 2025 |
| 958792ER0 | WESTERN NASSAU CNTY N Y WTR AUTH WTR SYS REV BDS 2021… | 4.0% | April 1, 2035 | $1,580,000 | A1AA- | April 1, 2031 |
| 958792BS1 | — | 5.0% | May 1, 2035 | $3,150,000 | — | — |
| 958792FQ1 | WESTERN NASSAU CNTY N Y WTR AUTH WTR SYS REV BDS 2021… | 2.625% | April 1, 2036 | $3,430,000 | A1AA- | — |
| 958792ES8 | WESTERN NASSAU CNTY N Y WTR AUTH WTR SYS REV BDS 2021… | 4.0% | April 1, 2036 | $1,640,000 | A1AA- | April 1, 2031 |
| 958792ET6 | WESTERN NASSAU CNTY N Y WTR AUTH WTR SYS REV BDS 2021… | 4.0% | April 1, 2037 | $1,705,000 | A1AA- | April 1, 2031 |
| 958792EU3 | WESTERN NASSAU CNTY N Y WTR AUTH WTR SYS REV BDS 2021… | 4.0% | April 1, 2038 | $1,775,000 | A1AA- | April 1, 2031 |
| 958792EV1 | WESTERN NASSAU CNTY N Y WTR AUTH WTR SYS REV BDS 2021… | 3.0% | April 1, 2039 | $1,845,000 | A1AA- | April 1, 2031 |
| 958792EW9 | WESTERN NASSAU CNTY N Y WTR AUTH WTR SYS REV BDS 2021… | 4.0% | April 1, 2040 | $1,900,000 | A1AA- | April 1, 2031 |
| 958792CF8 | WESTERN NASSAU CNTY N Y WTR AUTH WTR SYS REV REV BDS … | 6.701% | April 1, 2040 | $20,455,000 | A1AA- | — |
| 958792CR2 | WESTERN NASSAU CNTY N Y WTR AUTH WTR SYS REV REV BDS … | 5.0% | April 1, 2040 | $17,640,000 | A1 | — |
| 958792FR9 | WESTERN NASSAU CNTY N Y WTR AUTH WTR SYS REV BDS 2021… | 2.958% | April 1, 2041 | $16,640,000 | A1AA- | — |
| 958792EX7 | WESTERN NASSAU CNTY N Y WTR AUTH WTR SYS REV BDS 2021… | 4.0% | April 1, 2041 | $1,975,000 | A1AA- | April 1, 2031 |
| 958792DE0 | WESTERN NASSAU CNTY N Y WTR AUTH WTR SYS REV REV BDS … | 4.0% | April 1, 2045 | $4,900,000 | A1AA- | April 1, 2025 |
| 958792FS7 | WESTERN NASSAU CNTY N Y WTR AUTH WTR SYS REV BDS 2021… | 3.058% | April 1, 2045 | $7,110,000 | A1AA- | — |
| 958792CS0 | WESTERN NASSAU CNTY N Y WTR AUTH WTR SYS REV REV BDS … | 5.0% | April 1, 2045 | $10,000,000 | A1 | — |
| 958792EY5 | WESTERN NASSAU CNTY N Y WTR AUTH WTR SYS REV BDS 2021… | 4.0% | April 1, 2046 | $11,140,000 | A1AA- | April 1, 2031 |
| 958792EZ2 | WESTERN NASSAU CNTY N Y WTR AUTH WTR SYS REV BDS 2021… | 4.0% | April 1, 2051 | $13,545,000 | A1AA- | April 1, 2031 |
| 958792FT5 | — | 4.0% | April 1, 2051 | $1,810,000 | — | April 1, 2031 |
Reporting reliability
4/5
Good
9 continuing-disclosure filings on EMMA · most recent Dec 2025
Continuing disclosure
9 recentAudited Financial Statements or ACFR: AUDITED ACFR For Year Ended 5/31/…
Dec 30, 2025 · 958792
Audited Financial Statements or ACFR: AUDITED FINANCIAL STATEMENTS FY24
Oct 22, 2024 · 958792
Audited Financial Statements or ACFR: ACFR FY23
Jan 8, 2024 · 958792
Audited Financial Statements or ACFR: ACFR
Jan 24, 2023 · 958792
Audited Financial Statements or ACFR: ACFR
Dec 28, 2021 · 958792
Audited Financial Statements or ACFR: Water Authority of Western Nassau…
Dec 30, 2020 · 958792
Audited Financial Statements or ACFR: Water Authority of Western Nassau…
Dec 10, 2019 · 958792
Audited Financial Statements or ACFR: WAWNC CAFR with AUDITED FINANCIALS
Dec 6, 2018 · 958792
Audited Financial Statements or ACFR: WAWNC FY May 31, 2017 CAFR, Budge…
Dec 13, 2017 · 958792
Document library
15 filings · sourced from EMMA & the issuer
W
Financial
AUDITED ACFR For Year Ended 5/31/25
Financial ReportsDec 2025
Financialemma_cd
W
Financial
AUDITED FINANCIAL STATEMENTS FY24
Financial ReportsOct 2024
Financialemma_cd
W
Financial
ACFR FY23
Financial ReportsJan 2024
Financialemma_cd
W
Financial
ACFR
Financial ReportsJan 2023
Financialemma_cd
W
Financial
ACFR
Financial ReportsDec 2021
Financialemma_cd
W
OS
WATER SYSTEM REVENUE BONDS, SERIES 2021A (GREEN BONDS)
Official StatementsJun 2021
OSemma_os
W
Financial
Water Authority of Western Nassau County - Comprehensive Annual Financial Report, for the…
Financial ReportsDec 2020
Financialemma_cd
W
Financial
Water Authority of Western Nassau County - Comprehensive Annual Financial Report
Financial ReportsDec 2019
Financialemma_cd
W
Financial
WAWNC CAFR with AUDITED FINANCIALS
Financial ReportsDec 2018
Financialemma_cd
W
Budget
WAWNC FY May 31, 2017 CAFR, Budget: WAWNC 5 Year Operating Plan
BudgetsDec 2017
Budgetemma_cd
W
OS
WATER SYSTEM REVENUE BONDS, SERIES 2015 CONSISTING OF $19,400,000* WATER SYSTEM REVENUE R…
Official StatementsApr 2015
OSemma_os
W
OS
WATER SYSTEM REVENUE BONDS, SERIES 2010A
Official StatementsApr 2010
OSemma_os
W
OS
WATER SYSTEM REVENUE BONDS, SERIES 2010B FEDERALLY TAXABLE - BUILD AMERICA BONDS
Official StatementsApr 2010
OSemma_os
W
OS
WTR SYS REV BDS 2005
Official StatementsAug 2005
OSemma_os
W
OS
MBIA-IBC
Official StatementsJun 1996
OSemma_os